Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter6: Types Of Chemical Reactions And Solution Stoichiometry
Section: Chapter Questions
Problem 80E: The concentration of a certain sodium hydroxide solution was determined by using the solution to...
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Please help answer these questions, I'm stuck on them
![QUESTIONS
1. Write the balanced chemical equation for the reaction of KHP with NaOH.
KH Cg Hy 0 (aq) + NaOH(AAT H₂0Gt k NaC 8 Hy Oy (aq)
маонсаат
2. Suppose your laboratory instructor inadvertently gave you a sample of KHP contaminated with NaCl to
use in standardizing your NaOH. How would this affect the molarity you calculated for your NaOH solu-
tion? Justify your answer.
3. How many grams of NaOH are needed to prepare 500 mL of 0.125 M NaOH?
Molar muss = 39.6 9.08
4. A solution of malonic acid, H₂C3H₂O4, was standardized by titration with 0.1000 M NaOH solution. If
20.76 mL of the NaOH solution is required to neutralize completely 12.95 mL of the malonic acid solu-
tion, what is the molarity of the malonic acid solution?
H₂C3H₂O4 + 2NaOH-Na₂C3H₂O4 + 2H₂O
IF
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Transcribed Image Text:QUESTIONS
1. Write the balanced chemical equation for the reaction of KHP with NaOH.
KH Cg Hy 0 (aq) + NaOH(AAT H₂0Gt k NaC 8 Hy Oy (aq)
маонсаат
2. Suppose your laboratory instructor inadvertently gave you a sample of KHP contaminated with NaCl to
use in standardizing your NaOH. How would this affect the molarity you calculated for your NaOH solu-
tion? Justify your answer.
3. How many grams of NaOH are needed to prepare 500 mL of 0.125 M NaOH?
Molar muss = 39.6 9.08
4. A solution of malonic acid, H₂C3H₂O4, was standardized by titration with 0.1000 M NaOH solution. If
20.76 mL of the NaOH solution is required to neutralize completely 12.95 mL of the malonic acid solu-
tion, what is the molarity of the malonic acid solution?
H₂C3H₂O4 + 2NaOH-Na₂C3H₂O4 + 2H₂O
IF
OF
11
1
In
<10
olph
ras c
poir
le of K
I to neut
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