In an experiment, a 500.0 mL solution of approximately 0.250 M KOH (56.106 g/mol) solution was prepared. The actual concentration was then determined by standardizing against 1.0050 g of KHP(204.22 g/mol), which required 19.45 mL of the KOH solution. One mole of KOH reacts with one-mole ofKHP. a.How would you prepare the KOH solution? b.After standardization, what will be the exact molarity of the KOH solution? c.The KOH solution was then used to analyze a sample containing oxalic acid, H2C2O4 (90.03 g/mol). If the titration required 11.33 mL KOH, how many grams of oxalic acid is in the sample? Oxalic acid releases two protons during the reaction.
In an experiment, a 500.0 mL solution of approximately 0.250 M KOH (56.106 g/mol) solution was prepared. The actual concentration was then determined by standardizing against 1.0050 g of KHP(204.22 g/mol), which required 19.45 mL of the KOH solution. One mole of KOH reacts with one-mole ofKHP. a.How would you prepare the KOH solution? b.After standardization, what will be the exact molarity of the KOH solution? c.The KOH solution was then used to analyze a sample containing oxalic acid, H2C2O4 (90.03 g/mol). If the titration required 11.33 mL KOH, how many grams of oxalic acid is in the sample? Oxalic acid releases two protons during the reaction.
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
Chapter4: Types Of Chemical Reactions And Solution Stoichiometry
Section: Chapter Questions
Problem 47E
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Question
In an experiment, a 500.0 mL solution of approximately 0.250 M KOH (56.106 g/mol) solution was prepared. The actual concentration was then determined by standardizing against 1.0050 g of KHP(204.22 g/mol), which required 19.45 mL of the KOH solution. One mole of KOH reacts with one-mole ofKHP.
a.How would you prepare the KOH solution?
b.After standardization, what will be the exact molarity of the KOH solution?
c.The KOH solution was then used to analyze a sample containing oxalic acid, H2C2O4 (90.03
g/mol). If the titration required 11.33 mL KOH, how many grams of oxalic acid is in the sample? Oxalic acid releases two protons during the reaction.
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