need help finding out how to the sample calculations because I cannot figure out the moles of NaOH, moles of oxalic acid, and molarity of oxalic acid in sample. I believe the molarity of oxalic acid is 0.04 M based on what I have seen but I have no clue how you would get it or if it’s even right. Basically just need help with B. Sample Calculations

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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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I need help finding out how to the sample calculations because I cannot figure out the moles of NaOH, moles of oxalic acid, and molarity of oxalic acid in sample. I believe the molarity of oxalic acid is 0.04 M based on what I have seen but I have no clue how you would get it or if it’s even right. Basically just need help with B. Sample Calculations
CHEM 111
EXPERIMENT 2
PART II: DETERMINING TOTAL ACIDITY OF SATURATED OXALIC ACID
Moranty od
meave aoid. 0.04 M
A. DATA AND RESULTS:
Volume of saturated oxalic acid used
4,00 wL
Total volume of diluted oxalic acid solution made
100 mL
Trial 1
Trial 2
Trial 3 (if needed)
Volume of diluted oxalic acid sample
25.00 mL
75.00mL
16.00 pak
Volume of NaOH needed to titrate acid
16. 30 mk
Moles of NaOH needed to titrate acid
Moles of oxalic acid in sample
Molarity of oxalic acid in sample
Average molarity of diluted oxalic acid solution
Molarity of saturated oxalic acid solution
B. SAMPLE CALCULATIONS:
1. Starting with the volume of NaOH and dilute oxalic acid, show sample calculations of moles NaOH,
moles of oxalic acid, and molarity of oxalic acid in the sample, using the best trial.
2. Show the calculation of the molarity of saturated oxalic solution, using appropriate volumes and the
average molarity of diluted oxalic acid.
page 2 of 3
Transcribed Image Text:CHEM 111 EXPERIMENT 2 PART II: DETERMINING TOTAL ACIDITY OF SATURATED OXALIC ACID Moranty od meave aoid. 0.04 M A. DATA AND RESULTS: Volume of saturated oxalic acid used 4,00 wL Total volume of diluted oxalic acid solution made 100 mL Trial 1 Trial 2 Trial 3 (if needed) Volume of diluted oxalic acid sample 25.00 mL 75.00mL 16.00 pak Volume of NaOH needed to titrate acid 16. 30 mk Moles of NaOH needed to titrate acid Moles of oxalic acid in sample Molarity of oxalic acid in sample Average molarity of diluted oxalic acid solution Molarity of saturated oxalic acid solution B. SAMPLE CALCULATIONS: 1. Starting with the volume of NaOH and dilute oxalic acid, show sample calculations of moles NaOH, moles of oxalic acid, and molarity of oxalic acid in the sample, using the best trial. 2. Show the calculation of the molarity of saturated oxalic solution, using appropriate volumes and the average molarity of diluted oxalic acid. page 2 of 3
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