Chemistry Questions and Answers July 24, 2020

Consider the pentadienyl cation: Draw a molecular orbital diagram for the ? system of this cation. Sketch all five molecular orbitals and show which orbitals are occupied. Label each MO as bonding, non-bonding, or antibonding.

Oxalic acid, H2C2O4*2H2O (molar mass = 126.07 g/mol) is oftenused as a primary standard for the standardization of a NaOHsolution. If 0.147 g of oxalic acid dihydrate is nutralizedby 23.64mL of a NaOH solution, what is the molar concentration ofthe NAOH solution? Oxalic acid is a diprotic acid. (What is thebalanced equation?)

29) 23) Which one of the following is most soluble in water A) CHCHCHOH B) CHCHCHCHOH C) CHOH D) CHCHOH E) CHCHCHCHCHOH 24) The solubility of nitrogen gas at 25 C and 1 atm is 65 x 104 molL. If the partial pressure of nitrogen gas in air is 0.76 atm, what is the concentration (molarity) of dissolved nitrogen A) 6.8 x 104 M B) 5.2 x 104 M C) 1.1 X

SHOW WORK BY DIMENSIONAL ANALYSIS A) Convert 10.0 nm to m. B) Convert 3.001 cg to mg. C) Convert 5.00 m 3 to cm 3

Identify the geometry of [Ag(NH3)2]+. tetrahedral octahedral square pyramidal trigonal planar linear

Pick the correct statements for the reaction given below. (To theright means the new equilibrium has more product, to the left meansthe new equilibrium has more reactant.) A. a. removing CO 2 --to the left b. removing CO 2 --no change c. removing CO 2 --to the right d. adding CO--tothe left e. adding CO--no change f. adding CO--to the right g.

Si (CH), (g)12CO (g) SiO (s) 16CO(g) 6HO(l) SIO2 (s) 16 CO (g) 6 H20 (1) Si (CH3)4 (g) 12 CO2 (g)

Which one of the following is not a redox reaction Correct Answer Al(OH).(aq) 4H (aq) Al(aq) 4HO(1) C.H.O.(s) 60.(g) 6CO.(g) 6HO(1) Na FeCl.(s) 2Na(1) 8NaCl(s) Fe(s) 2H.O.(aq) 2H,O(1) 0.(g)

Help please

30. Which one of the following will change the value of an equilibrium constant, K A) changing the temperature B) adding other substances that do not react with any of the species involved in the equilibrium C) varying the initial concentration of reactants D) varying the initial concentration of products E) all of these 31. The reaction, 4BXY,

The point group of [PtCl4]2- is D4h. (a) What is the reducible representation of the sigma bonding in the complex? (b) What are the irriducible representations of the sigma bonding? (c) Construct a molecular orbital diagram showing the correlation between the ligand group orbitals and valence orbitals of Px in the sigma bonding. (d) What ligand

(29) pH of this new soln. pK (HCN) 9.30 (a) 9.00 (b) 9.30 (c) 9.60 (d) 4.70 a Volumetric Titration was performed on the weak acid HNO by adding the titrant strong base Ca(OH) PK (HNO) 3.35 a 45.00 ml of a 2.200 x 102 M Ca(OH) solution to 20.00 ml. of a 9.900 x 102 M HNO soln. (answer questions 30, 31, 32) (30) Ca(OH) (a) 1.523 x 102 M (b)

The oxidation number of chromium in K2CrO4 is www a. 7 b. 6 5 C. d. 2 e. 2

6) A possible impurity in the crude product is a SELFALDOL reaction between two molecules of acetophenone. Draw BOTH STEREOISOMERS of this SELFALDOL reaction (5 pts).

Part I xr x l 1. VTube TV X x 0.9cm x 13.5cm 34.35cm 2. V VFlask VTube VH2O VSyringe 600mL 34.35mL 50mL 30mL 614.34 3. P(mm HO) Patm(mm Hg) x 13.6 h0(mm) 634.1 x 13.6 451.9 8171.86 Part II 1. Internal radius of rubber tube, r 0.8cm 2. Length of segment of rubber tube filled with air, l 14.5cm 3. Volume of tube filled with air,

One mole of oxygen gas at 273 K and 1.00 atm pressure (State 1)is allowed to expand isothermally to 0.500 atm pressure (State 2).What is the value of Q if: (a) no weight is lifted by the expandinggas? (b) the maximum weight that could be lifted to 0.500 atm islifted in one step?

Na + NaNO3 ---> Na2O + N2 1) What is the correct balanced equation? 2) You are given 504 lbs of N2 What is the multiplication factor? Na = NaNO3 = Na2O =

Which one of the following is a monodentate ligand? a. CN - b. EDTA c. C 2 O 4 2- (oxalate ion) d. H 2 NCH 2 CH 2 NH 2 (ethylenediamine)

The photo is a 1H-NMR spectrum of methyl butanoate. Please determine which signals correspond to which proton labeled on the compound (which is shown in the top left corner) and discuss any chemical shifts.

Predided IH NMR Spectrum HC 43 O 3.9 CH L Foor 3.7 3.5 3.3 31 2.9 2.7 2.5 BET 1.36 HTS 800 2.36 Hows T 2.3 21 19 3472 1.7 15 13 E 201 640 Lax U D (1) 0.99 Faz 0.9 stol 0.14 0.13 0.12 2011 0.09 0.08 0.07 900 0.05 0.04 10.03 0.02 0.01 0.00 0.01

Predict the ground-state electron configuration of the followingions. Write your answers in abbreviated form, that is, beginningwith a noble gas in brackets. (a) Ru2+ : (b) : W3+ : The abbreviated electron configuration is written using anelement symbol for a noble gas, followed by the configuration ofthe electrons in the outermost shell. For

1. In the potentiometric titration of an aqueous potassium chloride solution with 0.09603 M silver nitrate, the following data were obtained Volume of AgNO, (mL) E versus SCE (V) 10.00 20.00 25.00 27.00 28.00 28.80 29.00 29.10 29.20 29.30 29.40 29.50 29.60 29.70 30.00 30.50 31.00 33.00 0.062 0.085 0.107 0.123 0.138 0.161 0.173 0.180 0.192 0.221

Please draw the d 3 microstate table.

2. Phosphorus trichloride reacts with water to form phosphorous acid, H3PO3, and hydrochloric acid in the following unbalanced reaction. For each mole of phosphorous acid produced by this reaction, how many moles of HCl are produced 1PCl3 3 HO H3PO3 HCI Hypos 2 Pelz Imole 3HC 3646 gmol 79 mcks of 3HCI IPC13 Imoll) 13 7,32 glmal

Write the general outer electronic configuration of s, p, d and f block elements.? - Chemistry Q&A Meta description: Write the general outer electronic configuration of s, p, d and f block elements.? Find the answer to this question and access a vast question bank that is customised for the student. Write the general outer electronic configuration

Calculate the lonic strength of 0.5M CaCl

Phosphoric acid reacts with magnesium hydroxide to produce magnesium phosphate and water via the following reaction: ?H3PO4 + ?Mg(OH)2->?Mg3(PO4)2 + ?H2O Balance the equation, then enter the coefficients, in order, in the answer box. Enter four integers separated by commas.

Practice entering numbers that include a power of 10 by entering the diameter of a hydrogen atom in its ground state, dH1.06x1010m, into the answer box. Express the diameter of a groundstate hydrogen atom in meters using a power of 10. Do not enter the units they are provided to the right of the answer box.

15. A z bond is the result of the overlap of two s orbitals. overlap of an s orbital and a p orbital. overlap of two p orbitals along their axes. sideways overlap of two parallel p orbitals. e) sideways overlap of two s orbitals. d) a) b) c) 16. Which of the following statements is true a) Az bond is twice as strong as a single bond. A bond has

What is the primary difference between a kinetic and an endpoint reaction incubation period is more crucial in the kinetic reaction incubation temperature is more of a factor in the kinetic reaction the rate of change is evaluated in a kinetic reaction the mid point is usually evaluated in an endpoint reaction

Preparation of the Dye, Orange II. The mechanism is listed below. We used sulfanilic acid and 2-napthol to form Orange II dihydrate. What would the structure of the product be if we used N,N-diethylaniline in place of 2-napthol?

SO3 Na SO3 Na SO3 NH3 sulfanilic acid 173.199mol NaSO3 NH NaNO, 2 HI HNO2 HCl NaCl NEN CI diazotized sulfanilic acid NaCO3 Na OH .. NN. 0 H. Na SO (OH 2naphthol CI ar Na SO3 deprotonated sulfanilic acid NEN CI diazonium salt diazotized sulfanilic acid NaSO3 NaSO3 NH 2 HO NaCl NN H,O CO, NN. H 0 OH CI HO NaCl

Problem : You found two bottles in the laboratory labeled X, andY. The instructor said that these bottles contain strontiumchloride and sodium chloride. You were tasked to identify bottle Xand Y and what salt is contained in each bottle so that it can beproperly labeled. Prepare a procedure how you would be able toidentify the salts in each bottle

A pure sample of solid ammonium carbamate, NHCONH4 is placed in a flask at 25C and allowed to decompose until it reaches equilibrium. What would be the equilibrium concentration of ammonia, NH3 NH2CO2NH4(s) 2 NH3(g) CO2(g) 2.50 10 at 25C O 0.00573 M O 0.208 M O 17.1 M 6.34 M

Problems by Topic Converting between Pressure Units 25. The pressure in Denver, Colorado (elevation 5280 ft), averages about 24.9 in Hg. Convert this pressure to each indicated unit. b. mmHg a. atm c. psi d. Pa 26. The pressure on top of Mt. Everest averages about 235 mmHg. Convert this pressure to each indicated unit. a. torr b. psi c. in Hg d.

66. Citric acid, H3C6H5O7, can furnish 3 H ions per molecule. Calculate the equivalent weight of citric acid. a. 192 g b. 96 g c. 384 g d. 64 g e. 576 g 67. You carry out the reaction represented by the following equation N2(g) 3H2(g) 2NH3(g) You add an equal number of moles of nitrogen gas and hydrogen gas in a balloon. The volume of the

Provided is the overallreaction of camphene to camphor. Provide the mechanism (includingarrows) of the conversion from camphene to camphor.

CH Camphene . H Isobornyl Acetate 0 H Isoborneol OH Acetic Acid OH, HO HO. MA 95C orec Chromium Trioxide HOSOH H Sulfuric acid Isobornyl Acetate H Isoborneol Camphor

S 9msAT where g is heat in joules, m is mass in grams, is specific heat in joules per gramdegree Celsius, J(gC), and AT is the temperature change in degrees Celsius. The heat energy associated with a change in phase at constant temperature is given by 9mAH where g is heat in joules, m is mass in grams, and AH is the enthalpy in joules per gram.

Pump is defined as a device which converts kinetic energy into mechanical energy. Select one True False,Pressure at point in a static mass of liquid depends upon the specific weight of liquid, depth below the free liquid surface and the shape and size of the bounding container. Select one True False,1 mbar 10 Pa Select one True False,Centrifugal

9. What is the product of the following reaction A A OH 10. What is the product of the following reaction OH B OH OH 1) excess CHCHMgBr 2) HO OH B 11. What is the product of the following reaction B OH HO H B H 12. What is the product of the following reaction 1) LIAIH, OH 2) HO 13. What is the product of the following reaction 1) LIAIH 2) HO

What will be the product in the given reaction OH CH3C AIC13 A mchlorophenol Bochlorophenol and pchlorophenol Cohydroxytoluene and phydroxytoluene Dmhydroxytoluene

The purpose of secondary filter (second monochromator) in fluorescence spectroscopy is Allows only excitation radiation Allows transmitted radiation Allows only emission radiation O Allows both excitation and emission radiations scopy par... Co Jump to...

Question 1 02 pts A sample of gas at 1.2 atm. and 25 C occupies a volume of 6.1 L. If the pressure and temperature are reduced to 0.87 atm. and 15 C what volume will the gas occupy

Why is [Pt(py) 4 ][PtCl 4 ] calledtetrakis(pyridine)platinum(II) tetrachloroplatinate(II) and nottetrapyridineplatinum(II) tetrachloroplatinate(II)? I thought you use tetrakis for ligands that contain numericalprefixes. I don't understand how pyridine contain numericalprefixes.

a)What is the oxidation state of Silver in AgNO3? Write youranswer with the sign (+ or -) followed by the integer. b)What isthe oxidation state of Iron in K3Fe(CN)6 ? Write your answer withthe sign (+ or -) followed by the integer.

Question 1 Sedimentation is a physical process used in wastewater treatment to remove particles that are less dense than water. A True False Question 12 The industrial manufacture of aluminum is based on the dissolution of aluminum oxide from bauxite in a cryolite and electrolyzed with direct current (A) True B 1 Point False

Part B: Specific gravity of distilled water. Temperature of distilled water: 20 o C Specific gravity: 1.0000 or 1.000 (according to the hydrometer used) Part C: Specific gravity of standard sugar solutions Standard Sugar Solution #1 Mass of Sugar: 18.03g Volume of Solution: 500mL Specific Gravity:1.004 #2 Mass of Sugar: 36.01g Volume of Solution:

Part A The following equation is not balanced session.masteringchemistry.com Mastering Assignments 2 Submit Express your answer numerically as an integer. View Available Hint(s) Pb(NO3)2 NaClPbCl NaNO3 Part B Complete previous part(s) 50 X Tue 1143 PM Mastering Chemistry Chapter 8 HMK Notice that NO3 appears in two different places in this

I have to find the Net Ionic equation for these.

AB CD AD CB Net lonic Equations 1. silver nitrate lead (II) nitrate AgNO3 Pb(NO3)2 Ag (NO) Pb (NO3) 2. silver nitrate potassium thiocyanate AgNO3 tKSCN 3. silver nitrate iron (III) chloride (6) AgNO FeCl 3 AgCl 3 AgNO3 FC C13 BACI 3Ag 3NO 3 Fc 4. silver nitrate barium nitrate 3 AgNO3 Fe(NO3)3 FC (NO) () 3 3C1 3Ag Cl Fe 3NC 3Ag 3017

Question 19 Not yet answered Marked out of 1.00 P Flag question The units of an IR spectrometer on the Xaxis is Select one a. meter O b. per centimeter O c. centimeter

Question 13 Oxidation numbers CaO2 Ca oxidation number is RbO2 Rb oxidation number is and O is and O is Moving to another question will save this response. v V

Q4. PH of the buffers solution depends upon the concentration of Acid Conjugate Base Acid and conjugate base Q5. Buffers are mixtures of Strong acid and strong base Strong acid and weak base Weak acid and their conjugate base Weak base and their conjugate acid Q6. When an acid is added to the buffer solution which part of buffer will react with

6. Amino acids are the structural units monomers that make up proteins. They join together to form short polymers chains called peptides or longer chains called either polypeptides or proteins. These chains are linear and unbranched, with each amino acid residue within the chain attached to two neighboring amino acids. The process of making

the pH of soft drink is 3.82 , the hydrogen concentration will be

que Pho sofor drink is Ime wir be

Q4 (a) Sucrose, common table sugar, is composed of glucose and fructose. Identify the configuration (a or B) of the two anomeric centers of sucrose. 0 ,(b) The molecule shown is a monosaccharide HOHC. (i) Is it a pentose or a hexose (ii) Is it an aldose or a ketose CHO (iii) Draw the Fischer projection for this molecule. Does it belong

Pure cyclohexane has a freezing point of 6.50 C and a molalfreezing point constant (kf) of 20.2 C/m. You dissolve 1.99 g ofan unknown solid into 50.0 g of cyclohexane. You determine that thefreezing point of the solution is -1.80 C. a. What is the freezing point depression (?Tf)? b. What is the molality of the solution? c. What is the molar mass

Question 1 Sort the following groups as ortho para and meta directing Group OCOR NHCOCH3 COOR NH Effect in EAS Select ortho para (electron donatir Select ortho para (electron donatir 2 pts,Select ortho para (electron donating, strong activating) meta (electron withdrawing, strong deactivating) ortho para (electron donating, moderate

Question 3 Which CX bond has the highest bond energy per mole CF CBr OCI OCCI

Q: The Ksp of CaF2 is 3.9 10?11. Calculate the molarsolubility of CaF2 in water. Detail of solution and answer is needed to better understand,thanks. *This already given but I have some doubt in the way thesolution is given as below: Can there be a clearer solution tobetter undestand.? . . .CaF2 <---> Ca++ + 2F- I. . . . . . . . . . . . .

Question 12 What is the name of the compound, S2Cl A. 8. disulfur chlorate sulfur(II) chlorine(II) disulfur dichloride C. D. sulfur(I) chloride E. disulfur dichlorine A Moving to another question will save this response.

Question 21 is best suited to extinguishing oil or flammable liquid fire. LO HS Foam Soda acid Dry chemical Vaporizing liquid,Question 22 Check list for Job Safety Analysis (JSA) consists of men, machine, work area, tools men, machine, material, tools work area, material, machine, tools men, work area, material, tools LO HS,Question 23 A hazard

Question 1 (a) Using the point group decision tree assign the point groups of the following molecules (1) H.. H (iv) (ii) Staggered confirmation of ethane (C2H6) CI H H (v) SFSCI (vi) BrF H Br Note you may use VSEPR or your knowledge of transition metal chemistry to derive any structures where only the molecular formula is provided.,Molecule CON

QUESTION 2 (i) Read burette Burette reading (ii) Explain what the diagram below is showing. (ii) Can you see a mistake in the diagram above What is the mistake (iv) The density of aluminum at 20C is 2.70 kgdm. A measuring cylinder contains 53 mL of water at 20C. Then a sphere (like a football) of aluminum is dropped into the water. The level of

Recrystallization of Acetanilide Prelab 1. What is the purpose of recrystallization Name 2. To purify a compound by recrystallization, one must choose a solvent which will dissolve the compound of interest when when but which will not dissolve the compound appreciably 3. What will happen if the recrystallization mixture is cooled very quickly so

Trimethylamine is a weak base (pKb 4.19) related to ammonia. Calculate the pH of a 3.00x104 M solution of trimethylamine 3.95 10.04 9.81 4.19 QUESTION 6 What is the concentration of Pb2 2.68x1013 M 2.86x10 M 2.72x10 M 7.40x10 4 M in a saturated solution of PbCO3 (K 7.40x10 ) QUESTION 7 How will the addition of PbClp to a saturated solution of

Question 6 of 10 (1 point) Hint Progress The rate of decomposition of PH3 was studied at 930C. The rate constant was found to be 0.0375 s. If the reaction is begun with an initial PH3 concentration of 0.95 M, what will be the concentration of PH3 after 26.0 s 4PH, P 6H Number 10 1 2 M 3 4 5 6 7 8 Print 9 Calculator Periodic Table 10 Ebook Check

For the reaction: 2N2O5(g) ? 4NO2(g) + O2(g) the rate law is:(?[O2]/?t) = k[N2O5] At 300 K, the half-life is 2.50 104 secondsand the activation energy is 103.3 kJ/mol. What is the half-life at310 K? (Hint: Use rate law expression to determine the reactionorder ? solve for k1 at 300 K using the corresponding half-lifeexpression ? use two-point

What is the IUPAC name of CH3NHCH5 ONmethylethanamine methylethylamine ethylmethylamine propanamine Previous Page Next Page,If the Kt of a certain aromatic amine is 2.24 x 10, what is the pK 8.65 8.65 9.22 2.24 Previous Page Submit Quiz Next Page 1 of 19 questions saved,Which of the following types of amines can form hydrogen bonds with water 0 1

Question 6 Calculate the degree of unsaturation for C9H11N. 5 degrees of unsaturation 6 degrees of unsaturation 4 degrees of unsaturation The molecule is saturated 2 degrees of unsaturation 2 pts

For the reaction CH3COOH HO CH3COO H3O The concentration of the products and reactants at equilibrium are described in the table below CH3COOH H3O Initial (1) Change (C) 0.15 Equilibrium (I C) 0.149 M Submit What is the value of K at 25C 1.35 x 103 M 1.35 x 103 M 1.35 x 10 M 1.35 x 103 M Request Answer wwwww CH3C00 0 1.35 x 103 M

What is required (it may be multiple steps) to complete the following reaction HC 1) NaCN 2) CH31 1)Pyridineheat 2) CH3CH3 1) LDATHF 2) CH3CHI O 1) LiAlH4 2) HO CH3 H3C H H CCH3

For the reaction: 2H2O2 ???? 2H2O + O2 the proposed mechanism is: H2O2 + I?????H2O+IO? step 1 H2O2 + IO? ???? H2O + O2 + I? step 2 which of the following is correct A. Both I? and IO? are catalysts. B. I? is a catalyst and IO? is a reactionintermediate. C. Both I? and IO? are reactionintermediates. D. IO? is a catalyst and I? is a

21. The given reaction is an example of Glycine A. hydrolysis C. decomposition H H NICIC OIH H H H reaction. Glycine NICC HO Peptide bond Bocondensation D. None of the Above OH OIH

Schottky defect in ceramic material is a) vacancy interstitialpair of cations b) pair nearby and cation vacancies c) interstitialimpurity d) substitutional impurity is the answer is b

A Conver The reaction of NO(g) Cl(g) NOCK(g) CKg) is found to have an equilibrium constant of 1.1x10 at a particular temperature. What does this mean 2 A At equilibrium, there is a much higher concentration of products than reactants At equilibrium, there is an equal concentration of reactants and products. At equilibrium, there is a much higher

Question The reaction of 1-methylcyclohexene with peroxyacetic acid will produce a racemic mixture of the organic product. What is this product? (Draw either sterioisomer)

A sample of liquid in a thermally insulated container (a calorimeter) is stirred for 1 h by a mechanical linkage to a motor in the surroundings (Assume that expansion of the system is negligible.) q0, w0, AH 0, AU 0 q0, w0, AH 0, AU 0 q0, w0, AH 0, AU 0 q0, w 0, AH 0, AU 0 q0, w 0, AH 0, AU 0 q0, w0, AH 0, AU 0 Submit Request Answer

What is the product of the following reaction ONH (2 equivalents) ( CCCH,CH3 HH I Multiple Choice O O IV , HH 11 CCCH,CH, CECCHCH3 IV

For each reaction predict the products and balance the equation.State the reaction in chemical formulas and in symbols. 9) Cr2(SO3)3 + H2SO4 -> 10) AgC2H3O2 + K2CrO4 -> 11) FeBr2 + K2CO3 -> 12) Ag2S + CuCl2 -> 13) Pb(NO3)2 + HI -> 14) Ba(ClO3)2 + H2SO4 -> 15) CuS + KCl ->

Reaction Mechanism (write the mechanism for the reduction of benzophenone with sodium borohydride to form biphenylmethanol) BHy 0 OH BH4 (OCH CH) Na HBH Na H Reduction OH Na BH (OCHCH) Cits OH HBHOCH CH Reaction Mechanism Discussion Describe the reaction mechanism using two or less sentences per step of the mechanism. Refer to the introduction

Question The coefficient of thermal expansion of boiler plant is Option 1 No comparison between two Option 2 Less than boiler scale Option 3 Equal to boiler scale Option 4 More than boiler scale

Q1 : How would you determine the standard electrode potential of the system Mg 2+ | Mg ?

Q2 : Can you store copper sulphate solutions in a zinc pot?

Q3 : Consult the table of standard electrode potentials and suggest three substances that can oxidise ferrous ions under suitable conditions.

Q4 : Calculate the potential of hydrogen electrode in contact with a solution whose pH is 10.

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Calculate the emf of the cell in which the following reaction takes place Ni2Ag (0.002 M) Ni (0.160 M) 2Ag(x)

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The cell in which the following reactions occurs 21 (aq) (ag) 2Fe (aq) 12(x) 2Fe E cell bas. 0.236 V at 298 K. Calculate the standard Gibbs energy and the equilibrium constant of the cell reaction.

Q : Why does the conductivity of a solution decrease with dilution?

Q :

A Suggest a way to determine the value of water.

Q : The molar conductivity of 0.025 mol L-1 methanoic acid is 46.1 S cm2 mol-1. Calculate its degree of dissociation and dissociation constant. Given (H + ) = 349.6 S cm2 mol-1 and (HCOO-) = 54.6 S cm2 mol

Q : If a current of 0.5 ampere flows through a metallic wire for 2 hours, then how many electrons would flow through the wire?

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Suggest a list of metals that are extracted electrolytically.

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What is the quantity of electricity in coulombs needed to reduce 1 mol of CO Consider the reaction CrO 14H6e 2Cr 8H0

Q : Write the chemistry of recharging the lead storage battery, highlighting all the materials that are involved during recharging.

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In the process of corrosion, due to the presence of air and moisture, oxidation takes place at a particular spot of an object made of iron. That spot behaves as the anode. The reaction at the anode is given by. Fe(s) Fe 2e (aq)

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Calculate the standard cell potentials of galvanic cells in which the following reactions take place (i) 2Cr(s) 3CdJag) 2Cr(ag) 3Cd (ii) Fe (ag) Ag (ag) Fe(ag) Ag(s) Calculate the AGA and equilibrium constant of the reactions.

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Write the Nernst equation and emf of the following cells at 298 K (i) Mg(s) Mg (0.001M) Cu(0.0001 M) Cu(s) (ii) Fe(s) Fe(0.001M) H(1M)H(g)(1bar) Pt(s) (iii) Sn(s) Sn(0.050 M) H(0.020 M) H.(g) (1 bar) Pt(s) (iv) Pt(s) Br.) Br(0.010 M) H(0.030 M) H(g) (1 bar) Pt(s).

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In the button cells widely used in watches and other devices the following reaction takes place Zn(s) Ag.O(s) H.QU) Zn(aq) 2Ag(s) 2OH(aq) 4,G and for the reaction. Determine

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The conductivity of 0.20 M solution of KCI at 298 K is 0.0248 Scm. Calculate its molar conductivity.

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The resistance of a conductivity cell containing 0.001M KCI solution at 298 K is 1500 AZAO. What is the cell constant if conductivity of 0.001M KCI solution at 298 K is 0.146 x 10 S cm

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The conductivity of sodium chloride at 298 K has been determined at different concentrations and the results are given below ConcentrationM 0.001 0.010 0.020 0.050 0.100 10 S m1.237 11.85 23.15 55.53 106.74 Calculate for all concentrations and draw a plot between A m and c . Find the value of A

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Conductivity of 0.00241 M acetic acid is 7.896 10 S cm. Calculate its molar conductivity and if acetic acid is 390.5 S cm mol, what is its dissociation constant AF m for

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How much electricity in terms of Faraday is required to produce (i) 20.0 g of Ca from molten CaCl. (ii) 40.0 g of Al from molten AlO.

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How much electricity is required in coulomb for the oxidation of (i) 1 mol of HO to 0. (ii) 1 mol of EeQ to FeO,.