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purpleleopard629Lv1

29 Apr 2021

The purity of a sample of sodium oxalate, Na2C2O4, is determined by titrating
with a standard solution of KMnO4. If 0.5116-g sample re-quires 35.62 mL of
0.0400 M KMnO4 to reach the titration’s end point, what is the %w/w Na2C2O4
in the sample

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A solution of sodium oxalate (Na2C2O4) in acidic solution is titrated with a solution of potassium permanganate (KMnO4) according to the following balanced chemical equation:

2KMnO4(aq) + 8H2SO4(aq) + 5Na2C2O4(aq) â 2MnSO4(aq) + 8H2O(l) + 10CO2(g) + 5Na2SO4(aq) + K2SO4(aq)

What volume of 0.0203 M KMnO4 is required to titrate 0.119 g of Na2C2O4 dissolved in 20.0 mL of solution?

When blood is donated, sodium oxalate solution is used to precipitate Ca2+, which triggers clotting. A 104 mL sample of blood contains 9.7 x 10^-5 g Ca2+/mL. A technologist treats the sample with 100 ml of .1550 M Na2C2O4. Calculate [Ca2+] after the treatment. (Ksp=2.30 x 10^-9)

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When blood is donated, sodium oxalate solution is used to precipitate Ca2+, which triggers clotting. A 114 mL sample of blood contains 9.7 x 10^-5 g Ca2+/mL. A technologist treats the sample with 100 ml of .1550 M Na2C2O4. Calculate [Ca2+] after the treatment. (Ksp=2.30 x 10^-9)

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The purity of a sample of sodium oxalate, Na2C2O4, is determined by titrating
with a standard solution of KMnO4. If 0.5116-g sample re-quires 35.62 mL of
0.0400 M KMnO4 to reach the titration’s end point, what is the %w/w Na2C2O4
in the sample

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The purity of a sample of sodium oxalate, Na2C2O4, is determined by titrating with a standard solution of KMnO4. If 0.5116-g sample re-quires 35.62 mL of 0.0400 M KMnO4 to reach the titration’s end point, what is the %w/w Na2C2O4 in the sample

Unlock all answers

Related textbook solutions

Basic Chemistry

Principles of Chemistry Molecular Approach

Principles of Chemistry Molecular Approach

Chemistry: Structure and Properties

Chemistry: A Molecular Approach

Chemistry: A Molecular Approach

Principles of Chemistry: A Molecular Approach

Chemistry: The Central Science

Related questions

Weekly leaderboard

The purity of a sample of sodium oxalate, Na2C2O4, is determined by titrating
with a standard solution of KMnO4. If 0.5116-g sample re-quires 35.62 mL of
0.0400 M KMnO4 to reach the titration’s end point, what is the %w/w Na2C2O4
in the sample