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(iv) With reference to the diagram below, state, giving a reason for your answer, which equilibrium constant (K1 or K2) would be expected to be largest. Use this reasoning to explain why [Rh(PEt3)3CI] is not an active precatalyst Cl CI CI (0)Using a diagram, illustrate all of the symmetry elements present in BiF5 (ii) Discuss the origin of the inert pair effect and use this to explain why BiF3 is more stable than BiFs, and BiCls is not stable at all (c) Explain why the absorptions in UV-visible spectrum of [Cr(H20)s]3+ are very broad compared to those of [La(H20O)6)]3+ Solution ii) Electronic configuration of Bi = 4f 14 5d 10 6s 2 6p 3 In BiF 5 & BiCl 5 ; Bi(5+) = 4f 14 5d 10 6s 0 6p 0 In BiF 3 ; Bi(3+) = 4f 14 5d 10 6s 2 6p 0 Origin of Inert pair effect is that the electrons in the 6s orbitals are strongly attracted by the nucleus because of weaker shielding by inner (n-1) d and (n-2) f orditals. This s orbital is highly penetrating so it is close to the nucleus compared to other orbitals and electrons present in s orbitals do not involve in any bonding.Inert pair effect start from 6th period from 13 group onward within p-block element.Due to inert pair effect 6s electrons do not participate in the bonding or participate under drastic condition but that product is not stable so BiF 3 is stable and BiF 5 is unstable.In case of BiCl 5 ; 5 orbitals are not available for the acceptance of 5 eletcron pair from chlorine because of inert pair effect. c) Absorption UV-visible spectrum of [Cr(H 2 O) 6 ] 3+ are very broad as compared to those of [La(H 2 O) 6 ] 3+ because Cr(III) is d 3 (t 2g 3 e g 0 ) configuration and there is transition between d orbitals also known as d-d transitions. In [Cr(H 2 O) 6 ] 3+ is an octahedral complex and ligands of this complex interacts with d- orbitals electrons thats why spectrum is broad. Cr =[Ar]4d 1 3d 5 Cr(3+) =[Ar]4d 0 3d 3 But in case of [La(H 2 O) 6 ] 3+ there is no d -electron in the d- orbitals so,ligands do not interact with d- orbitals thats why spectrum is sharp. La = [Xe]5d 1 6s 2 La(3+) = [Xe]5d 0 6s 0 .

Bildung

But in case of [La(H 2 O) 6 ] 3+
there is no d -electron in the d- orbitals so,ligands do not interact
with d- orbitals thats why spectrum is sharp.
La = [Xe]5d 1
6s 2
La(3+) = [Xe]5d 0
6s 0

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(TCO 2) Which of the following project management activities is associated with project initiation? (Points : 3) Â Â Â Â Â Â Estimating resources and creating a detailed resource plan Describing project scope, alternatives, and feasibility Establishing a relationship with the customer Identifying and assessing risks Closing down the project Solution a) Establishing a relationship with the customer b) describing the project scope, alternatives, and feasibility activity of the project planning phase c) work breakdown structure. d) project execution. e) project closedown. f) critical path scheduling. g) To construct the Gantt chart, a horizontal bar is drawn for each activity that reflects its sequence and duration. h) systems analysis. i) net present value (NPV). j) tangible benefit. .

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(TCO 1) Who are the users of managerial accounting information? How does their use of accounting information differ from the users of financial accounting information? Solution Answer: Accounting information helps users to make better financial decisions. Users of financial information may be both internal and external to the organization. Internal users (Primary Users) of accounting information include the following: External users (Secondary Users) of accounting information include the following: They use financial statements in order to satisfy some of their different needs for information. These needs include the following: (a) Investors. The providers of risk capital and their advisers are concerned with the risk inherent in, and return provided by, their investments. They need information to help them determine whether they should buy, hold or sell. Shareholders are also interested in information which enables them to assess the ability of the enterprise to pay dividends. (b) Employees. Employees and their representative groups are interested in information about the stability and profitability of their employers. They are also interested in information which enables them to assess the ability of the enterprise to provide remuneration, retirement benefits and employment opportunities. (c) Lenders. Lenders are interested in information that enables them to determine whether their loans, and the interest attaching to them, will be paid when due. (d) Suppliers and other trade creditors. Suppliers and other creditors are interested in information that enables them to determine whether amounts owing to them will be paid when due. Trade creditors are likely to be interested in an enterprise over a shorter period than lenders unless they are dependent upon the continuation of the enterprise as a major customer. (e) Customers. Customers have an interest in information about the continuance of an enterprise, especially when they have a long-term involvement with, or are dependent on, the enterprise. (f) Governments and their agencies. Governments and their agencies are interested in the allocation of resources and, therefore, the activities of enterprises. They also require information in order to regulate the activities of enterprises, determine taxation policies and as the basis for national income and similar statistics. (g) Public. Enterprises affect members of the public in a variety of ways. For example, enterprises may make a substantial contribution to the local economy in many ways including the number of people they employ and their patronage of local suppliers. Financial statements may assist the public by providing information about the trends and recent developments in the prosperity of the enterprise and the range of its activities. .

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( Subsequent events ) Green, CPA, is auditing the financial statements of Taylor Corporation for the year ended December 31, 20X1. Green plans to complete the fieldwork and sign the auditor\'s report about May 10, 20X2. Green is concerned about events and transactions occurring after December 31, 20X1, that may affect the 20X1 financial statements. Required Solution a. What are the general types of subsequent events that require Green\'s consideration and evaluation? Answer: There are two types of subsequent event: 2. events that provide evidence with respect to conditions that did not exist at the date of the balance sheet being reported on but arose subsequent to that date. b. What are the auditing procedures Green should consider performing to gather evidence concerning subsequent events? The auditor should perform audit procedures designed to obtain sufficient appropriate audit evidence that all events up to the dat of the auditor\'s report that may require adjustment of, or disclosure in, the financial statements have been identified. CONDITIONS THAT EXISTED AT THE DATE OF THE BALANCE SHEET AND EVENTS OCCURRING UP TO THE DATE O THE AUDITOR\'S REPORT: The auditor is required to perform following audit procedues: FACTS DISCOVERED AFTER THE DATE OF THE AUDITOR\'S REPORT BUT BEFORE THE DATE THE FINANCIAL STATEMENTS ARE ISSUED: The auditor does not have any responsibility to perform audit procedures or make inquiry regarding the financial statements after the date of the auditor\'s report. During the period from the date of the auditor\'s report to the date the financial statements are issued, the responsibility to inform the auditor of facts which may affect the financial statements rest with the management, .

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(Reliability engineering) Make a list of six population stereotypical responses Solution a stereotype is a thought that can be adopted about specific types of individuals or certain ways of doing things.These thoughts or beliefs may or may not accurately reflect reality. Stereotype content refers to the attributes that people think characterize a group. Studies of stereotype content examine what people think of others, rather than the reasons and mechanisms involved in stereotyping. Cognitive functions: Stereotypes can help make sense of the world. They are a form of categorization that helps to simplify and systematize information. Thus, information is more easily identified, recalled, predicted, and reacted to.Stereotypes are categories of objects or people. Between stereotypes, objects or people are as different from each other as possible. Explanation purposes: As mentioned previously, stereotypes can be used to explain social events. Jews were stereotyped as being evil and yearning for world domination to match the anti-Semitic â€˜factsâ€™ as presented in The Protocols of the Elders of Zion. Justification purposes: People create stereotypes of an outgroup to justify the actions that their ingroup has committed towards that outgroup. Intergroup differentiation: An assumption is that people want their ingroup to have a positive image relative to outgroups, and so people want to differentiate their ingroup from relevant outgroups in a desirable way. If an outgroup does not affect the ingroupâ€™s image, then from an image preservation point of view, there is no point for the ingroup to be positively distinct from that outgroup Social functions: self-categorization: People will change their stereotype of their ingroups and outgroups to suit the context they are in.[3][23] People are likely to self-stereotype their ingroup as homogenous in an intergroup context, and they are less likely to do so in an intragroup context where the need to emphasise their group membership is not as great. Stereotypes can emphasise a personâ€™s group membership in two steps: First, stereotypes emphasise the personâ€™s similarities with ingroup members on relevant dimensions, and also the personâ€™s differences from outgroup members on relevant dimensions. Second, the more the stereotypes emphasise within-group similarities and between-group differences, the more salient the personâ€™s social identity will become, and the more depersonalised that person will be. Social functions: social influence and consensus: Stereotypes are an indicator of ingroup consensus. When there are intragroup disagreements over stereotypes of the ingroup or outrgroups, ingroup members will take collective action to prevent other ingroup members from diverging from each othe .

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(JAVA NetBeans) Write a Java program able to perform selection sort. Solution import java.util.Scanner; /** * @author * */ public class SelectionSort { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub int arr[] = setArray(); System.out.println(\"\ Before Sorting:\"); printArray(arr); arr = selectionSort(arr); System.out.println(\"\ After Sorting:\"); printArray(arr); } /** * reads and stores the data in the one-dimensional array */ /** * @return */ public static int[] setArray() { int arr[] = new int[12]; System.out.println(\"Enter 12 integers.\"); Scanner scanner = new Scanner(System.in); for (int i = 0; i < arr.length; i++) { arr[i] = scanner.nextInt(); } return arr; } /** * prints the data in the one-dimensional array */ public static void printArray(int[] arr) { System.out.println(); for (int i = 0; i < arr.length; i++) { System.out.print(arr[i] + \" \"); } System.out.println(); } /** * method will sort the array in ascending order */ public static int[] selectionSort(int[] arr) { for (int i = 0; i < arr.length - 1; i++) { int index = i; for (int j = i + 1; j < arr.length; j++) if (arr[j] < arr[index]) index = j; int smallerNumber = arr[index]; arr[index] = arr[i]; arr[i] = smallerNumber; } return arr; } } OUTPUT: Enter 12 integers. 4 23 65 34 84 37 12 17 24 36 82 51 Before Sorting: 4 23 65 34 84 37 12 17 24 36 82 51 After Sorting: 4 12 17 23 24 34 36 37 51 65 82 84 .

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[Java programming] • Write a class named Junior.java • Inherits the Student class • Has one constructor with parameters – name, studentID, and units • Has a new instance variable – String major • Has sefer/gefer methods for the new instance variable, major • Overrides the toString method – prints “Junior: Student name, ID: studentID, Major: major” Solution 1)Ans- class Junior java{ } 2)Ans- class Juniorjava{ } class Student extends Juniorjava{ } 3)Ans- class Juniorjava{ String name; int studentID; int units; public Junior java(String s,int ID,int un){ this.name=s; this.studentID=ID; this.units=un } } 4) Ans- class Juniorjava{ String name; int studentID; int units; String major//instance variable public Junior java(String s,int ID,int un){ this.name=s; this.studentID=ID; this.units=un } } 5)Ans- class Junior Junior java{ String name; int studentID; int units; String major//instance variable public Junior java(String s,int ID,int un){ this.name=s; this.studentID=ID; this.units=un } public void setmajor(String m){ this.major=m; } public void getmajor(){ return major; } } 6)Ans- class Junior java{ String name; int studentID; String major//instance variable public Junior java(String s,int ID ){ this.name=s; this.studentID=ID; this.major=\"ven\" } public void toString(){ System,out,println(this.name+\"\ \"+this.major+\"\ \"+this.studentID); } } class Student extends Junior java{ public Junior student(String s,int ID ,String m){ this.name=s; this.studentID=ID; this.major=m } public void toString(){ System,out,println(this.name+\"\ \"+this.major+\"\ \"+this.studentID); } } public class Test{ public static void main(String args[]){ Juniorjava j =new Junior java(); Student s =new Student(); j.toString(\"han\" 17); s.toString(\"van\",13,\"ras\"); } .

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\"Social Organizations and Core Competencies\" Please respond to the following: Investigate the importance of effective change leadership in relation to an organizationâ€™s adoption of social media initiatives. Next, suggest two (2) ethical issues that a CIO may encounter when implementing social media initiatives. Propose (1) strategy for addressing each identified issue. Provide a rationale for your response. Select three (3) of the twelve (12) core competencies for IT professionals from Chapter 14 of the Roberts text. Rank each one (1) according to its importance for IT professionals to possess in order to develop their careers and compete in the job market. Justify your ranking. Solution Investigate the importance of effective change leadership in relation to an organizationâ€™s adoption of social media initiatives In current scenario we have high importance of effective change leadership in relation to an organizationâ€™s adoption of social media initiatives. Social media is used now a days by the corporate leaders as well as by managers for effective internal communication as well as better engagement with customers. Social media such as facebook, twitter, various types of blogs are now a days used in various business practices for better communication suggest two (2) ethical issues that a CIO may encounter when implementing social media initiatives. Propose (1) strategy for addressing each identified issue 1. With the implementing of social media it may happen the employess may spend more hours on social media for their own personal business rather than for company business Solution: Some new company policies should be created, having clear cut guide lines of using social networking and media websites. 2. With the implementing of social media , it may happen that employess start harshing each other on social media sites and posting negative comments against each other. Solution: Social Media tracking for each employee should be done on time to time. .

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// I have two classes One is Carnivore and the other is Herbivore. Each of them is having its own shape and move function across the screen. Now i want to put them togehter in the following Environment Class so that i can see them moving across the screen simultaneously. But this function is giving me a blank screen if i try to add both of those classes. If i add just one class, it works. What am i doing wrong in this Java coding? import javax.swing.JFrame; import javax.swing.JPanel; public class Environment { public static Environment earth; public Environment() { Carnivore s = new Carnivore(); Herbivore h = new Herbivore(); JFrame f = new JFrame(); JPanel pane = new JPanel(); pane.add(s); pane.add(h); f.add(pane); f.setVisible(true); f.setSize(600,400); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setTitle(\"The Jungle Life\"); } } Solution Modified your code... you should have main method, then we have to create and panel and add this panel to frame import javax.swing.JFrame; import javax.swing.JPanel; public class Environment { //frame instance declared public JFrame f; //constructor public Environment(){ prepareGUI(); } //main method public static void main(String args[]){ Environment earth = new Environment(); earth.showEnvironment(); } //preparing frame in this method public void prepareGUI() { f = new JFrame(); f.setVisible(true); f.setSize(600,400); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setTitle(\"The Jungle Life\"); } //then finally adding this frame to panel public void showEnvironment(){ //creating carnivore and herbivore objects Carnivore s = new Carnivore(); Herbivore h = new Herbivore(); JPanel panel = new JPanel(); panel.add(s); panel.add(h); f.add(panel); f.setVisible(true); } } .

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. Answer the following questions about acids 1. What is the phase of all acids? 2. What is the smallest particle to represent an acid? 3. What kind of bond holds acids together? Defend your answer Solution Ans. #1. All acids are present in aqueous phase . # An acid (Arrhenius â€“ Bronsted Lowry acid) is a chemical species that donates a H + . To donate an H + , the acid must be in contact with a H + -acceptor. For most of the acids that we encounter, water acts as a medium or acceptor. Therefore, all acids are present in aqueous phase so that acid molecule can donate an H + -ion to the medium. #2. H + ion is the smallest ion present in an acid. An acid has a general formula of AH â€“ where A is an element (say, Cl) or a group (NO 3 ). In all case, H + ion or H-atom constitutes the smallest particle of an acid because there is no other element in the periodic table smaller than an H-atom. #3. Because of greater difference in the electronegativity of the acidic H-atom and A, the acid molecule has relatively positive charge center at the H-atom, and a negative charge center at the A atom group. So, the bond between H + and A atom/group is relatively polar covalent bond . # The acid molecules may be held together by intermolecular H-bonds (HNO 3 , H 2 SO 4 , HClO 4 , etc. oxoacids), or dipole-dipole attractions (HCl, HCN, HBr, etc.) or other forces depending on the nature of the acid molecule. # Hydrogen bond is a weak attractive force between a highly electronegative atoms (O, N, F) and a H-atoms linked to such atoms. The criteria for H-bonds formation is that there must be - I. A highly electronegative atom ( F, N, O -atom), and II. A H-atoms linked to such atoms (F, N, O). .

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. At time 110 four processes ( P1 â€“ P4 ) are waiting for a timeout signal. They are scheduled to wake up respectively at times: 130, 145, 175, 210. P1 wakes up and immediately issues a call to SetLTimer (tn, 50 ). Show the priority queue after the call. (call takes no time). Process queue Time Difference Timer Solution Solution: Process queue P2 P4 P3 P5 Time difference 15 35 30 20 Timer 15 .

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(70 pts) Nuclear History Identify the event in nuclear history that occurred on each of the following dates: August 13, 1942 July 16, 1945 August 9, 1945 April 26, 1986 December 2, 1942 August 6, 1945 October 31, 1952 March 11, 2011 Solution On August 13, 1942, the Manhattan Engineer District was founded to direct and coordinate a series of research projects known as the Manhattan project under the direction of engineer Leslic Groves. On December 2, 1942, Enrico Fermi and his collaborators achieved the first self-sustained and controlled chain fission reaction, only four years after it was discovered that a uranium atom bombarded with neutrons could be split (or fission) generating a large amount of energy and several neutrons that could continue the process by impacting other uranium atoms. July 16, 1945 the first nuclear bomb is detonated in the desert of the Alamo Gordo, in New Mexico (United States). Call the Trinity test. On August 6, 1945, when World War II was about to end, a uranium bomb called \"Little Boy\" was launched by the mythical plane Enola Gay on Hiroshima (Japan) and caused more than 100,000 deaths, besides destroying the city. The order was given by Harry Truman, president of the United States. On August 9, 1945, a plutonium bomb called \"Fat Man\" was dropped on Nagasaki, with results comparable to that released 3 days earlier. Ivy Mike, the first hydrogen bomb (thermonuclear fusion bomb) and that was developed by the Americans. It was detonated in an atoll in the Marshall Islands at 7:15 (local time) on November 1, 1952, or at 7:15 pm on October 31 (world time). On July 26, 1986, the Chernobyl nuclear power plant accident occurred. It was the biggest nuclear catastrophe in history. The explosion took place in the fourth block of the Chernobyl nuclear power station, located only 120 kilometers from the capital of Ukraine - Kiev, near the border with Belarus. As a result of the earthquake and tsunami that occurred on March 11, 2011 in Japan, the Fukushima nuclear power plant was seriously damaged. This number 1 plant of Tokyo Electric Power in Fukushima (known as Daiichi) is located about 270 kilometers northeast of Tokyo, has six boiling light water reactors, operates since 1971 and had permission to continue active until the year 2021. .

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(2) The CPU incorporates several major components (as shown in Fig. describe their major functions. 1). Please Solution CPM stands for Central Processing Unit. It\'s also called as processor . It is considered a s brain of a computer. Is is responsible for performing all functions and processes. It is made up of various transistors and each transistor receive a set of inputs and produces output.The CPU mainly interacts with main memory,referring to it for both instructions and data. The main components of a CPU are listed below: a)Control Unit This is reponsible for fetching the instructions from main memory and the executon of these instructions. It uses electrical signals to instruct the whole computer system for carrying out or executing,already stored program instructions.Its name clearly shows that it controls and co-ordinates computer components.It extracts instructions from memory and decodes and executes them.In fact it regulates the flow of information through the processor. It acts as a bridge between arithmetic unit and memory. b)Registers Registers are temporary storage areas which are responsible for holding the data that is to be processed.They store the instructions and data in a processor.This data is further used by Control Unit.There are some registers that are set aside for specific tasks, these generally include a program counter, stack, and flags. c)Combinational logic This is responsible for performing all arithmetic and logical operations. It performs arithmetic calculations like as addition, subtraction, multiplication and division as well as comparisons.The unit can compare numbers, letters, or special characters.There can be more than one Arithmetic logic unit in a CPU, and these ALUs can also be used for the purpose of maintaining timers that help run the computer. d)Main Memory e)Input/Output:Input sends data to a CPU and output makes the processed information available for the other devices to consume. .

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(Audit evidence) The third GAAS of field work requires that the auditor obtain sufficient competent audit evidence to afford a reasonable basis for an opinion regarding the financial statements under audit. In considering what constitutes sufficient competent evidential matter, a distinction should be made between underlying accounting records and other information available to the auditor. Required Discuss the nature of audit evidence to be considered by the auditor in terms of the underlying accounting records, other corroborating information available to the auditor, and the methods by which the auditor tests or gathers competent evidence. State the presumptions that can be made about the validity of audit evidence with respect to (1) other information and (2) underlying accounting records. AICPA (adapted) Solution Audit evidence the information available the auditor in arriving at the conclusions in which the audit opinion is based and includes the information contained in the accounting records underlying the financial statement and other informations.the auditor should obtain the audit evidence by testing the accounting records , by analysis and by review. the accounting records some times cannot give the full evidence.the sufficient and approprate evidence is based on the quality of the evidence.some of the SAAs guidliness are given below 1.the evidence are obtained by directly by the auditor. it is more relaible than indirectly obtained by the individual. 2. evidence are more relaible isobtained from the uotside of the entity 3.evidence is more reliable when it is in documentary form. accounting records the accounting records involving the evidence of the internal control over financial reporting.it also check reports such as cheks, invoices,contracts,etc.. the important audit procedures are 1.to understand client and industry : priliminary planning and risk analysis 2.access the risk of meterial misstatement : understand and test internal controls and system processing 3.to gather evidence related to account balance and transactions. .

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What is the Big Bang? Solution Big Bang is a theory which talks ababo the formation of universe. This phenomenon took place 13.8 billion years back. It was first proposed by Georges Lemaitre. He said that a very long time ago, the universe started as just a single point. It stretched and expanded to get as big as it is now, and that it could keep on stretching. When the universe began, it was just hot, tiny particles mixed with light and energy. It was nothing like what we see now. As everything expanded and took up more space, it cooled down. The tiny particles grouped together. They formed atoms. Then those atoms grouped together. Over lots of time, atoms came together to form stars and galaxies. The first stars created bigger atoms and groups of atoms called molecules. That led to more stars being born. At the same time, galaxies were crashing and grouping together. As new stars were being born and dying, then things like asteroids, comets, planets, and black holes formed. .

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What is the concept of sustainable income? Please describe it in your own words. Can you give an example of what this number may look like by using the income statement of a real-life company? Solution Sustainable Income is income from ordinary operational activities which is of a recurring nature. That is the stake holders expectation about continuity of income reported in the future years. The Financial Income statement may contain both transactions pertains to regular operating activities as well as non-recurring and non operational items. If non operational items are of a recurring nature, it may also be taken in to consideration for determining sustainable income. Infact one of the limitation for an Income Statement prepared as per GAAP, is the volatility due to high profit in one period compared to another period. Investors or other persons interested in the financials of a company is more interested in sustainability of the earnings of the company, i.e whether the company will be able to generate the same level income under similar operating conditions. Examples of items which is normally excluded from the calculation of sustainable income are: Gain on sale of a major fixed assets Compensation or grants received from authorities for initial set up or loss incurred under specified conditions Loss of assets due to theft,fire etc. Expenses which will bring benefits for multiple years like major advertisment/ marketing expenses Research and development expenses which brings long time benefits .

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What is the backbone for the Internet? Briefly describe how the Internet works. Solution An internet backbone refers to one of the principal data routes betweeen large, strategically interconnected networks and core routers on the internet they provide a consistent way for \"internet service provider\"(isp) to keep and maintain data online with security. Internet: it is a globalsystem of interconnected physicl computer networks such as lan\'s,wan\'s and man\'s. in simple terms network is a network\'s of million\'s of public,private connected with the help of widely available internet working devices. Working of internet: The client initates the process and send request for particular internet service The n/w devices such as modem and ethernet card process the signal so that it can be sent over the local loop carrier or the signal carriers. Loop connects the loaction of user to isp point of presence. it accepts connection from users authentic connetcions.the signal are then transfered to isp regional network consisting of interconnected routers in different cities served by isp. If the packet is supposed to reach the host, whichh is directly served by the isp, then it is delivered to the host.otherwise the packet is sent to isp backbone operator if the packet recived by the backbone is supposed to reach a server then the packet is forwarded to the nearest router. .

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What is the pH of a 0.1 M aqueous solution of NaH2PO4 Solution NaH2PO4 --------------> Na^+ (aq) + H2Po4^- (aq) Ka = 6.8*10^-8 Kb = Kw/Ka = 1*10^-14/6.8*10^-8 = 1.47*10^-7 H2PO4^- (aq) + H2O(l) ----------------> H3Po4(aq) + OH^- (aq) I 0.1 0 0 C -x +x +x E 0.1-x +x +x Kb = [H3PO4][OH^-]/[H2Po4^-] 1.47*10^-7 = x*x/0.1-x 1.47*10^-7 *(0.1-x) = x^2 x = 0.00012 [OH^-] = x = 0.00012M POH = -log[OH^-] = -log0.00012 = 3.92 PH = 14-POH = 14-3.92 = 10.08 .

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what is the ph of a 0.16M NaF(aq) solution? Solution NaF(aq) ------------> Na^+ (aq) + F^- (aq) 0.16M 0.16M F^- (aq) + H2O (l) ---------------> HF(aq) + OH^- (aq) I 0.16 0 0 C -x +x +x E 0.16-x +x +x Kb = Kw/Ka = 1*10^-14/6.8*10^-4 = 1.5*10^-11 Kb = [HF][OH^-]/[F^-] 1.5*10^-11 = x*x/0.16-x 1.5*10^-11 *(0.16-x) = x^2 x= 1.55*10^-6 [OH^-] = x = 1.55*10^-6M POH = -log[OH^-] = -log1.55*10^-6 = 5.81 PH = 14-POH = 14-5.81 = 8.19 >>>>answer .

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What is the pH of a 0.114 M solution of the acid HA if its ionization constant, K A , is 0.16 . Solution HA (aq) -------------> H^+ (aq) + A^- (aq) I 0.11 0 0 C -x +x +x E 0.11-x +x +x Ka = [H^+][A^-]/[HA] 0.16 = x*x/0.11-x 0.16*(0.11-x) = x^2 x = 0.075 [H^+] = x = 0.075M PH = -log[H^+] = -log0.075 = 1.125 >>>>>answer .

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What is the minimum number of nodes in an AVL tree of height 8? Let N(H) be the minimum number of nodes in an AVL tree of height h. What is the minimum number of nodes in an AVL tree of height 8? Let N(H) be the minimum number of nodes in an AVL tree of height h. Solution (* contains(t,x) is whether x is in the tree *) fun contains(t: tree, x: value): bool = case t of Empty => false | Node{value, left, right} => (case compare(x, value) of EQUAL => true | LESS => contains(left, x) | GREATER => contains(right, x)) (* add(t,x) is a BST with the same values as t, plus x *) fun add(t: tree, x: value): tree = let fun balance(t: tree): tree = t (* what to write here? *) in case t of Empty => Node{value=x, left=Empty, right=Empty} | Node {value, left, right} => (case compare(x, value) of EQUAL => Node{value=x, left=left, right=right} | LESS => Node{value=value, left=add(left, x), right=right} | GREATER => Node{value=value, left=left, right=add(right,x) } ) end .

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