1. How many ml of 0.30M solution of H2SO4 will react with 20ml of a 0.30M solution of NaOH? H2SO4 + 2NaOH → Na2SO4 + 2 H2O 2. The iron (II) in an acidified solution is titrated with 0.0317M solution of KMnO4: 5Fe2+ +MnO4- +8H → 5 Fe3+ +Mn2+ + 4H2O If the titration required 51.3 ml, how many mg of iron ore are in the solution. 3. A 0.3749 g soda ash sample is analyzed by titrating sodium carbonate with the standard 0.2388M HCl solution, requiring 49.38ml. The reaction is: CO32- + 2H+ → H2O +CO2 Calculate the percent sodium carbonate in the sample.
1. How many ml of 0.30M solution of H2SO4 will react with 20ml of a 0.30M solution of NaOH? H2SO4 + 2NaOH → Na2SO4 + 2 H2O 2. The iron (II) in an acidified solution is titrated with 0.0317M solution of KMnO4: 5Fe2+ +MnO4- +8H → 5 Fe3+ +Mn2+ + 4H2O If the titration required 51.3 ml, how many mg of iron ore are in the solution. 3. A 0.3749 g soda ash sample is analyzed by titrating sodium carbonate with the standard 0.2388M HCl solution, requiring 49.38ml. The reaction is: CO32- + 2H+ → H2O +CO2 Calculate the percent sodium carbonate in the sample.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1. How many ml of 0.30M solution of H2SO4 will react with 20ml of a 0.30M solution of NaOH?
H2SO4 + 2NaOH → Na2SO4 + 2 H2O
2. The iron (II) in an acidified solution is titrated with 0.0317M solution of KMnO4:
5Fe2+ +MnO4- +8H → 5 Fe3+ +Mn2+ + 4H2O
If the titration required 51.3 ml, how many mg of iron ore are in the solution.
3. A 0.3749 g soda ash sample is analyzed by titrating sodium carbonate with the standard 0.2388M HCl solution, requiring 49.38ml. The reaction is:
CO32- + 2H+ → H2O +CO2
Calculate the percent sodium carbonate in the sample.
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