Answered: 4. Which volumes of KaCrO4, AgNO3, and…

4. Which volumes of KaCrO4, AgNO3, and NaNO3 must be measured accurately in thisexperiment and which ones can be approximate? (SPECTROPHOTOMETRIC DETERMINATION OF A SOLUBILITY PRODUCT CONSTANT LAB)

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter6: The Systematic Approach To Equilibria: Solving Many Equations

Section: Chapter Questions

Problem 13P

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Nickel(II) formate [Ni(HCO2)2] is widely used as a catalyst precursor and to make metallic nickel. It can be prepared in the general chemistry laboratory by treating nickel(II) acetate with formic acid (HCO2H). Ni(CH3CO2)2(aq) + 2 HCO2H(aq) Ni(HCO2)2(aq) + 2 CH3CO2H(aq) Green crystalline Ni(HCO2)2 is precipitated after adding ethanol to the solution. (a) What is the theoretical yield of nickel(II) formate from 0.500 g of nickel(II) acetate and excess formic acid? (b) Is nickel(II) formate paramagnetic or diamagnetic? If it is paramagnetic, how many unpaired electrons would you expect? (c) If nickel(II) formate is heated to 300 C in the absence of air for 30 minutes, the salt decomposes to form pure nickel powder. What mass of nickel powder should be produced by heating 253 mg of nickel(II) formate? Are nickel atoms paramagnetic?
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O KINETICS AND EQUILIBRIUM Calculating the solubility of an ionic compound when a commo... oh Data Formula Ksp Calculate the solubility at 25 °C of Zn(OH), in pure water and in a 0.0060M ZnSO , solution. BaCrO4 1.17x10-10 BaSO4 1.08x10-10 Round both of your answers to 2 significant digits. CaCO3 3.36x10-9 CaF2 3.45x10-11 solubility in pure water: Co(OH)2 5.92x10-15 CuBr 6.27x10-9 solubility in 0.0060 M ZNSO4 solution: CuCO3 1.4x10-10 Fe(OH)2 4.87x10-17 PbCO3 7.40x10-14 PbCrO4 2.8x10-13 PBF2 3.3x10-8 Mg(OH)2 5.61x10-12 Ni(OH)2 5.48x10-16 AgBrO3 5.38x10-5 A92CO3 8.46x10-12 AgCI 1.77x10-10 Ag2CrO4 1.12x10-12 SrCO3 5.60x10-10 ZnCO3 1.46x10-10 Zn(OH)2 3.0x10-17 AgBr 5.35x10-13 AuCl 1.77x10-10 Explanation Check Terms of Use Privacy O 2021 McGraw-Hill Education. All Rights Reserved 18 MacBook Air olo
B N Determine the solubility of Hgl2 in g/L if the solubility product constant is 4.0 x 10-29. (Use to denote that the figures succeeding it is an exponent (ex. 10^-5) and just write the numerical figures only. Use 3 significant figures and do not put any space or comma in between figures). Blank 1 Blank 1 Add your answer
Question 4 Three students studied the following solubility curve. They were asked to determine the amount of NH CI that needs to be added to 58 g NH CI to create a saturated solution at 160 KNO, 140 NANO, 80°C. 120 KBr Student 1 said 25 g more would need to be added, student 2 said 22 g and student 3 said 17g NH CI needs to be NH,CI. added. NaC Which student is correct? Provide evidence from the solubility curve to support your claim. 10 20 30 40 50 60 70 Temperature ("C) 80 90 8 8 8 8 8 (o'H 6 00L/6) Aatpgnjos
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Use the References to access important values if needed for this question. When 12.0 mL of a 8.42×10*M barium acetate solution is combined with 15.0 mL of a 2.62×10 M ammonium fluoride solution does a precipitate form? (yes or no) For these conditions the Reaction Quotient, Q, is equal to Submit Answer Try Another Version 1 item attempt remaining
O KINETICS AND EQUILIBRIUM Calculating the solubility of an ionic compound when a commo... dlo Data Formula Ksp Calculate the solubility at 25 °C of CaF, in pure water and in a 0.0010M NaF solution. BaCrO4 1.17x10-10 BaSO4 1.08x10-10 Round both of your answers to 2 significant digits. CaCO3 3.36x10-9 CaF2 3.45x10-11 solubility in pure water: Co(OH)2 5.92x10-15 CuBr 6.27x10-9 CuCO3 1.4x10-10 solubility in 0.0010 M NaF solution: Fe(OH)2 4.87x10-17 PBCO3 7.40x10-14 PbCrO4 2.8x10-13 PBF2 3.3x10-8 Mg(OH)2 5.61x10-12 Ni(OH)2 5.48x10-16 AgBrO3 5.38x10-5 Ag2CO3 8.46x10-12 AgCl 1.77x10-10 Ag2CrO4 1.12x10-12 SrCO3 5.60x10-10 ZnCO3 1.46x10-10 Zn(OH)2 3.0x10-17 AgBr 5.35x10-13 AuCI 1.77x10-10 Explanation Check © 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy APR W 23 II
O KINETICS AND EQUILIBRIUM 三 Calculating the solubility of an ionic compound when a commo... olh Data Formula Ksp Calculate the solubility at 25 °C of CaF, in pure water and in a 0.0180M NaF solution. BaCro4 1.17x10-10 BasO4 1.08x10-10 Round both of your answers to 2 significant digits. CaCO3 3.36x10-9 CaF2 3.45x10-11 solubility in pure water: Co(OH)2 5.92x10-15 CuBr 6.27x10-9 CuCO3 1.4x10-10 solubility in 0.0180 M NaF solution: Fe(OH)2 4.87x10-17 PBCO3 7.40x10-14 PbCrO4 2.8x10-13 PBF2 3.3x10-8 Mg(OH)2 5.61x10-12 Ni(OH)2 5.48x10-16 AgBrO3 5.38x10-5 Ag2CO3 8.46x10-12 AgCI 1.77x10-10 Ag2Cr04 1.12x10-12 SrC03 5.60x10-10 ZnCO3 1.46x10-10 Zn(OH)2 3.0x10-17 AgBr 5.35x10-13 AuCl 1.77x10-10 Check O2021 McGraw-Hill Education. All Rights Reserved Temms of Use
Be sure to answer all parts. From the solubility data given, calculate the solubility products for the following compounds. (a) SrF2, 7.3 × 10-² g / L: x 10 Enter your answer in scientific notation. (b) Ag3PO4, 6.7 × 10-3 g / L: x 10 Enter your answer in scientific notation.
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