Based on the equipotentials shown in the example below- order the magn.docx

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Based on the equipotentials shown in the example below, order the magnitude of the potentials at points A, B, and C (from greatest to least). The following diagram is best described as Solution 1) The potential at the points are: A = 10 V B = 9 V C = 0 V Therefore the answer is b. A > B > C 2) The second diagram shows .

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Based on the equipotentials shown in the example below- order the magn.docx

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Be sure to answer all parts. Give the Mino acid sequence of an octapeptide that contains the amino acids Cys, Pro, Phe (2 equiv), Met, Ile, Tyr Typ, and forms the following fragments when partially hydrolyzed with HCl: Ile-Tyr-Pro-Cys, Trp-Phe-Ile-Tyr, and Met-phe-Trp. Be sure to answer all parts. Give the amino acid sequence of an octapeptide that contains the amino acids Cys, Pro, Phe (2 equiv), Met, Ile, Tyr, Trp, and forms the following fragments when partially hydrolyzed with HCI: Ile-Ty-Pro-Cys, Trp-Phe-Ile-Tyr, and Met-Phe-Trp. Solution Phe have two equivalent that means peptide sequence contains two Phe. fragments are when partially hydrolyzed with HCl: Ile-Tyr-Pro-Cys.................>(1) Trp-Phe-Ile-Tyr..................> (2) and Met-phe-Trp.......................> (3) from equation (2) and (3), we write Met-phe-Trp-Phe-Ile-Tyr........> (4) from (1) and (4), we can write Met-phe-Trp-Phe-Ile-Tyr-Pro-Cys this is the sequence of octapeptide. .

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Basic naming lab Name Naming Lab Report In lieu of a lab report, please turn in the answers to the following 10 questions I. What is the name of the compound with the chemical formula Li CO,? 2 What is the name of the compound with the chemical formula Cas? 3. What is the name of the compound with the chemical formula Fe:0, 4. What is the name of the compound with the chemical formula Mn(OH)? 5. What is the name of the compound witdh the chemical formula SO,? 6. What is the chemical formula for ammonium acetate? 7. What is the chemical formula for aluminum sulfate? 8. What is the chemical formula for lead(lI) oxide? What is the chemical formula for coppertII) phosphate? 10. What is the chemical fomula for carbon tetrabromide? Some polyatomic ions and their names: Formula Name NH Ammonium SO Formula Name Sulfite HSO PO.. Bisulfite | Phosphate OH xide Nitrate Nitrite HPO Hydrogen phosphate No CHO Acetate CN MnO Permanganate 10 CO Carbonate ???? | Bicarbonate | |C HPO Dihydrogen phosphate BrO Cyanide Bromate lodate Chromate Chlorate Sulfate Hg Mercury(l) 40 Lab Manual Solution 1.) Lithium Carbonate 2.) Calcium sulfide 3.) Ferric oxide 4.) Manganese(II)hydroxide 5.) Sulphur trioxide 6.) NH4(CH3COO) 7.) Al2(SO4)3 8.) PbO 9.) Cu3(PO4)2 10.) CBr4 If you have any query please comment.. If satisfied please rate it thanks.. .

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Based on the information in “Atom: Clash of the Titans”, please answer the following questions: 1. Why was it so important that the scientists investigating the atom be young and unattached to existing scientific thinking? 2. What connection did Bohr discover between atoms and light? 3. Why did Einstein hate Bohr’s ideas - quantum mechanics, electrons jumping and releasing light - about the atom? Solution 1) The scientists investigating the atom should be young as was then the young scientist Albert Einstein. His harsh arrogance led him barely any employment, thereby because of his undemanding job he had a lot of time to have deep thoughts. And that was the era wherin he worked on to prove the existence of atom. Though it was Boltzman who started work on this topic but due to his health conditions and alegations on him being irrelegious materialist lead to him comitting suicide. And the scientists should be unattached to existing scientific thinking as was scientist Neil Bohr who was fearless in his thinking and was ready to abandon common sense and human intution to find an explanation. 2)Bohr\'s connection between atoms and light was as follows-quantum jumps Light is emitted when an electron jumps from a higher orbit to a lower orbit and is absorbed when jumps from lower to higher orbit. In order to overcome the limitations of Bohr model and to develop a general model for atoms.The 2 developments contibuted a lot - 3)As the bohr idea of new atom and quantum jumps were not so traditional neither they matched classical science theories thus the old school people strongly opposed it. And Albert Einstein was one of them as he wanted to save the world of order and wanted to preserve the common sense. .

Based on the information in Atom- Clash of the Titans- please answer t.docx

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Both these questions go together Solution When we bring a magnet near a metal, the metal enters a magnetic field, all of the electrons inside the metal \"line up,\" causing a temporary magnetic alignment that is attracted to the magnet . That alignment dissipates once the magnetic field is removed and therefore, the only way for a metal to be repelled by a magnet is if it\'s first magnetized to the opposite pole. so if the metal is magnetised and the a magnet with the same pole is brought near it will repel Note:- its easy to magnetise a iron piece just rub the magnet over the metal in one direction many, many times. By rubbing a magnet over your metal continuously, you are aligning the electrons in the metal in a certain way, toward a certain polarity. The more that you do this, the longer the effect will last, taking more time for the electrons to return to their random or unpolarized state. so the answer to the question is 1) c 2) d .

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Boston Scientific faced the challenge of balancing openness and sharing with security and the need for restricting access to information. How did the use of technology allow the company to achieve both objectives at the same time? What kind of cultural changes were required for this to be possible? Are these more important than the technology- related issues? Develop a few examples to justify your answer. Solution The use of technology will definately allow the company to achieve both objectives at the same time. It explained in below given points . 1. With in the company we can apply the access rights on users level. We can identify the various group of users, and according to the need of users group, we can apply various access rights to each users groups. 2. Let take an example of social networking websites, lets suppose we have two users group in the company named A and B, where A have customer interfacing, so for user group A , we can enable the use of social networking websites, to communicate and make good relationship with customers. 3. Same can be done with company related emails also. We can sent the company related emails with digital signature. Here in this case the authentic user who having access rights can access the emails signed with digital signature. Technology related issues are more important t han the cultural changes, In terms of cultural changes, we can change the setting arrangements within the organization, so that users or the employess with same access rights sit together, and employess with less access rights sit together in other places. Because if both type of employess sit together then it can happen than authentic information gets leaked. .

Boston Scientific faced the challenge of balancing openness and sharin.docx

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Based on the information in “Atom: Clash of the Titans”, please answer the following questions: 16. Why did Heisenberg want to destroy Schrödinger’s wave equation?What happened when he tried to call out Schrödinger in public? 17. Almost the entire scientific community had turned on Bohr and Heisenberg, saying that their “matrix mechanics” model of the atom was wrong. Why did they refuse to give up their ideas and admit they were wrong? please use correct sentences Solution 16. Heisenberg stated that the position and the velocity of particle / wave cannot be found at some point in space simultaneously. On the contrary Schrödinger wave equation gives the position of an atom and with defined quantum aspects of a system. However in the end these 2 theories went hand in hand. 17. Using this matrix mechanics which has superseded the Bohr\'s model, Heisenberg predicted that the electrons might not be revolving in orbits. The mathematics used to describe the model were unknown and uncertain to the scientific community. They refused to agree with the discrete energy states concept Nevertheless this was also complementing the Schrödinger’s wave equation which was widely accepted during that period of time. .

Based on the information in Atom- Clash of the Titans- please answer t (2).docx

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6.3. (a) In which form does Cd(II) occur mainly in a water of the following composition: pH = 7.8 Solution (a) pH=7.8=-log [H+] [H+]=10^-7.8=1.585*10^-8M Also, [H+][OH-]=1*10^-14=Ionic product of water [OH-]=(1*10^-14)/[H+]=(1*10^-14)/(1.585*10^-8)=6.309*10^-7M Alkalinity=[OH-]+[CO3 2- ]=1.3*10^-3 eq/L [CO32-]=(1.3*10^-3 eq/L)-[OH-]=(1.3*10^-3 eq/L)-(6.309*10^-7M)=(1.3*10^-3 eq/L)=1/2*(1.3*10^-3 eq/L)=0.65*10^-3mol/L [For [OH-]eq=[OH]M ,but for Carbonate, 2eq=1mol] Thus,[CO32-]>>>[OH-] Also,Cd2+ +CO32- <--->CdCO3 ,log K=4.5,K=10^-4.5 But,Ca2+ +CO32- <--->CdCO3,log K=8.5 So,CdCO3 will precipitate first and CaCO3 later, Also, Cd T =1*10^-9 M<<<Ca T =1*10^-3 M And Cd 2+ +2OH- <--->Cd(OH)2 ,log K=14.3 The value of log K is much higher, so Cd(II) must be predominant as Cd(CO3) b) yes, CdCO3 precipitates due to very high equilibrium constant for this reaction compared to that for Cd(OH)2 c)[EDTA]=10^-7 mol/L Cd 2+ +EDTA 4- <--->CdEDTA 2- , log K=16.5,K=10^-16.5 K=[CdEDTA 2- ]/[Cd 2+ ][EDTA 4- ] or,[CdEDTA 2- ]=K*[Cd 2+ ][EDTA 4- ]=10^-16.5 *(10^-7)*[Cd2+]=10^-23.5 [Cd2+] But ,Cd 2+ +CO3 2- <--->CdCO3 ,log K=4.5,K=10^-4.5 Similarly,[CdCO3]=10^-4.5 *(6.309*10^-7)*[Cd2+]=(6.309*10^-11.5) [Cd2+] where., [OH-]=6.309*10^-7M Hence ,[CdEDTA 2- ]<[CdCO3] CdCO3 remains the predominant form for Cd(II) .

6-3- (a) In which form does Cd(II) occur mainly in a water of the foll.docx

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6. A solution of an acid, with a general formula HA, contains 0.400 moles of H\"\'. The acid solution is neutralized by 43.4 mL of sodium hydroxide. What is the molarity of the sodium hydroxide solution? 7. Write the balanced chemical equations for the removal of water from the following hydrated crystals. a) Copper(Il) sulfate pentahydrate b) Tin(II) chloride dehydrate c) Cobalt(II) chloride hexahydrate d) Magnesium sulfate heptahydrate oint of solution made hy dissolving 6.000 q of urea Solution 6) HA + NaOH ------------------> NaA + H2O moles of HA = moles of NaOH = 0.400 moles = 0.400 volume = 43.4 mL = 0.0434 L molarity of NaOH = moles / volume = 0.400 / 0.0434 = 9.21 M 7) a) CuSO4 .5H2O ------------------> CuSO4 + 5 H2O b) SnCl2 H2O ----------------------> SnCl2 + H2O c) CoCl2.6H2O --------------------> CoCl2 + 6H2O d) MgSO4 7H2O -------------------> MgSO4 + 7H2O .

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6. What are the differences between objects and abstract data types Solution Differences between Objects and Abstract data types: ______________________________________________ Objects: Object is an instance of a class and it has states and behaviours of class. Abstract data type: It is a data type of abstract and it hides the representation of class, and it is typically implemented as a class and each instance of Abstract data type is usually an object of that class. Objects and Abstract data types are not the same. But these are not different with each other. Objects are a kind of Abstract data types. An Abstract data type is an interface.But objects are instance of a class, with its own copy of any non-static variables. Abstract data type is a collection of methods but in case of objects it is not an interface.It is an representation of a class with new operator. A class can have one or more Abstract data types in the same way class can have one or more objects also. To understand you with clear for Example, Collection interface is Abstract data type, ArrayList is a class and you can make ArrayList object with new operator. .

6- What are the differences between objects and abstract data typesSol.docx

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6. What do the bubbles in boiling water principally c a. air b. O2 (e and H2e c. H20 d. vacuum e. nitrogen What is the correct name for Co3(PO4)4? a. cobalt phosphate b. tricobalt tetraphosphate c. cobalt (II) phosphate d. cobalt (III) phosphate e. cobalt (IV) phosphate 7. 8. How many neutrons are contained in *He? a. 0 b. 1 c. 2 d. 3 e. 4 9. How many electrons are contained in He 2 2 a. d. 3 e. 4 Solution 6) the bubbles in boiling water contains water vapours, hence H2O(g), as the vapour pressur eof li 7) The name for anion is phosphate , there are four phosphate groups The oxidation state of cobalt is 3x + 4(-3) = 0 x = +4 So the correct name is Cobal(IV)phosphate 8) neutrons = mass number - atomic number = 4-2 = 2 9) Electrons = 0 as the number of electrons in Helium in its ground state = 2 The charge is +2, which represents removal of two electrons .

6- What do the bubbles in boiling water principally c a- air b- O2 (e.docx

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6. Both solutions and colloids are mixtures. Differentiate between them. Solution Although solutions and colloid both are mixtures but we can differentiate solution and colloid on the basis of some parameter given below: 1) Particle size: Particle size of solution is less than 1nm or (10 -9 ) m Particles size of colloid are between 1nm to 1000 nm 2) Visibility In solutions the visibility of substances dissolved in it are not possible even with optical means. While in colloid it may be visible with ultra microscope. 3) Diffusion Diffusion is very rapid in solution while very slow in colloid 4) setting Solution doesn\'t settle while colloid may settle down under centrifuge . 5) Nature: Solution is Homogeneous in nature while colloid is heterogeneous in nature. 6) Tyndall effect Solution doesn\'t show Tyndall effect Colloid shows Tyndall effect So we can say that solution and colloid both are mixture but there are a lot of difference between them. .

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6). The Town of Elmwood applied for a competitive grant from the state government for providing an after- school recreational program for at-risk children from low-income families. On 2/1/2005, Elmwood was notified that it had been awarded a grant of $100,000 for the program. The program provides up to $1,000 per child served provided that family annual income is less than $25,000. The grant provides for reimbursement of all allowable costs of conducting the program on a twice-monthly basis. No time limit is imposed for completion of the program. Any unused grant award may be carried forward to the next fiscal year. By 12/31/2005, Elmwood?s fiscal year-end, $74,000 had been expended in providing recreational services for eligible beneficiaries. Reimbursement of $71,000 had been received from the state by this date. Required: [12 pts.] a). What are the eligibility requirements of this grant? b). As of 12/31/2005, identify the following: (1). Cash Received (2). Program Revenue (3). Expenditures Solution Total Expenditure = $ 74000 Cash Received = $ 71000 Revenue = 71000-74000 = $ 3000 The program must be carried on & also the expenditure will be for the children whose family income is less than $ 25000/-. .

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500 men are arranged in an array of 10 rows and 50 columns according to their heights. Tallest among each row of all are asked to come out. And the shortest among them is A. Similarly after resuming them to their original positions, the shortest among each column are asked to come out. And the tallest among them is B. Now who is taller A or B ? Solution No one is taller, both are same as A and B are the same person. .

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7. There are many optical phenomena in the sky. To name 3: rainbows, sundogs and mirages. Explain fully how each one if formed, including how they are the same or different. Why do we only see a rainbow on the earth but in a plane, you can see a whole circle is one of the thing that should be explained. Solution Rainbow- A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured circular arc. Sundogs- Sundogs, parhelia, are formed by plate crystals high in the cirrus clouds that occur world-wide. In cold climates the plates can also be in ground level as diamond dust. Mirages- Its formation is a result of the refraction and the total internal reflection of light in the air. To investigate the formation of a mirage, we firstly need to understand why light is refracted in the air. Regions of air at different temperatures have different refractive indexes, just like many different mediums. .

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7. Eric owns five activities. He elects not to group them together as a single activity under the \"appropriate economic unit\" standard. He participates for 100 hours in Activity A, 140 hours in Activity B, 240 hours in Activity C, 99 hours in Activity D, and 120 hours in Activity E. Which of the following statements is correct ? a. Eric is a material participant with respect to Activities A, B, C, D, and E. b. Eric is a material participant with respect to Activities B, C, and E only. c. Activities A, B, C, D and E are all significant participation activities. d. Activities B, C and E are all significant participation activities. e. None of the above. 8. Wanda owns four separate activities. She elects not to group them together as a single activity under the Solution 7) c. Activities A, B, C, D and E are all significant participation activities. 8) c. Wanda is a material participant with respect to only Activity D. .

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7. A dilute solution of which acid is most likely to produce a reduction product other than H2 when it reacts with a metal? (A) HF (B) HCI HNO3 (D) H2SO4 Solution Dilute nitric acid reacts with metals to produce hydrogen gas, but not all metals. Magnesium, manganese and zinc react to give hydrogen gas and the corresponding nitrate. But copper reacts with dilute nitric acid to give nitric oxide which subsequently reacts with atmospheric oxygen to give nitrogen dioxide. Concentrated nitric acid reacts with copper giving nitrogen dioxide directly as product. When attempting to react nitric acid with less electropositive metals, products obtained can depend on reaction temperature as well as the metal involved. Some metals and metalloids react with nitric acid to give the oxides eg. Sn & Tl. Precious metals such as gold and other platinum group metals do not react with nitric acid. Chromium, iron and aluminium readily dissolves in dilute nitric acid, but passivates in concentrated nitric acid. .

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7. (TCO 1) Identify four skills that a manager needs in order to perform the job efficiently and effectively. Provide brief comments on each? Solution 7. (TCO 1) Identify four skills that a manager needs in order to perform the job efficiently and effectively. Provide brief comments on each? 1.Finance Means the efficient and effective management of money (funds) in such a manner as to accomplish the objectives of the organization. It includes how to raise the capital, how to allocate it i.e. capital budgeting. Not only about long term budgeting but also how to allocate the short term resources like current assets. It also deals with the dividend policies of the share holders. Financial Management is the Operational Activity of a business that is responsible for obtaining and effectively utilizing the funds necessary for efficient operation. It an be defined as obtaining, using and maintaining a satisfied workforce. Personnel management is the planning, organizing, compensation, integration and maintainance of people for the purpose of contributing to organizational, individual and societal goals. .

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7 At 20 Â°c (293 K) the vapor pressure of water is 0.0231 atm. What is the vapor pressure produced by vaporization of seawater if the total concentration of sea-salt is 1.15 m? 8 Molar mass from boiling point elevation: A solution is prepared by dissolving 0.300 g of an unknown solute (nonvolatile) in 30.0 g of carbon tetrachloride (CCl4) which has a boiling point 0.392 Â°C higher than pure CCl4. What is the molecular weight of the unknown solute? Kb for CCls is 5.020 Â°C/m. 9 How many grams of Na2SO4 should be used to be added to 250 mL of water to preparea 0.750 m solution of Na2S04? [MW of Na2SO4 is 142.04 g/mol] Solution 8. Elevation in boiling point = 1000 * Kb * w / ( W * m ) 0.392 = 1000 * 5.020 * 0.300 / ( 30.0 * m) m = molecular weight of unknown solute = 128. g / mol 9. molality = ( mass / molar mass ) * ( 1000 / weight of solvent in g. ) 0.750 = ( mass / 142.04 ) * ( 1000 / 250 ) mass of Na 2 SO 4 needed = 0.750 * 142.04 * 250 / 1000 = 26.6 g. .

7 At 20 c (293 K) the vapor pressure of water is 0-0231 atm- What is t.docx

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6a.) When would you add sand to a chromatography column and why? What other materials could be added to a chromatography column instead of sand and why might they be used? b.) What three criteria must be met in selecting a suitable solvent to recrystallize a solid sample? Solution Answer: 6a In chromatography, we generally have stationary phase (solid support) and mobile phase (liquid or gas). The mobile phase carries the component of a mixture from one side to other thorugh passing the stationary phase. Silica will act as an adsorbent in chromatography. Due to presence of Si-O bond -OH group at the surface of silica, It is slightly acidic as well as polar which helps in adsorbing of the molecules or components onthe basis of their polarity. Hence the one which is more polar will have polar-polar interactions and will adsorb strongly and the other will pass through by mobile phase. The other components which can used in place of silica is alumina. This has similar properties such as silica, however the nature (acidic/basic) of adsorbent stationary phase is now different. It can act as a base so it will bind acidic component strongly over less acidic or basic components. The choice of adsorbent or stationary phase is related to seperation of components present in the mixture. Acidic or basic, polar or less polar. We can easily pack the column with desired adsorbent. b.) 1. It should not dissolves the substance to be purified at room temperature. It means; solute should not have any solubility or very less solubility at room temperature. But it should dissolve the solute at the elevated temperature, such as near to boiling point of solvent. 2. Impurities should dissolve in the solution at room temperature or solvent should not dissolves the impurities even at elevated temperatures 3. Solvent must not react with the substance which is needed to be purify, solvent should not be volatile or very expensive. .

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