diprotic acid. The procedure for identifying an unknown acid is exactly as described in the lab manual. Part 1: Standardization of NaOH. 1.4378 g of oxalic acid was dissolved in 250.0 mL of water and a 25.00 m aliquote was titrated with NaOH. 24.73 mL of titrant was required. Determine the concentration of sodium hydroxide. Answer: Part 2: Titration of the unknown acid. 1.9875 g of the unknown acid was dissolved in 250.0 ml of water and 25.00 ml of this solution was titrated with the NaOH. 29.50 mL of titrant was required. Determine the Molar Mass of the unknown. Answer:
diprotic acid. The procedure for identifying an unknown acid is exactly as described in the lab manual. Part 1: Standardization of NaOH. 1.4378 g of oxalic acid was dissolved in 250.0 mL of water and a 25.00 m aliquote was titrated with NaOH. 24.73 mL of titrant was required. Determine the concentration of sodium hydroxide. Answer: Part 2: Titration of the unknown acid. 1.9875 g of the unknown acid was dissolved in 250.0 ml of water and 25.00 ml of this solution was titrated with the NaOH. 29.50 mL of titrant was required. Determine the Molar Mass of the unknown. Answer:
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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Transcribed Image Text:An unknown acid is chosen from the list in the 1223 Lab Procedure. Determine the Identify the unknown
diprotic acid.
The procedure for identifying an unknown acid is exactly as described in the lab manual.
Part 1: Standardization of NaOH. 1.4378 g of oxalic acid was dissolved in 250.0 mL of water and a 25.00 mL
aliquote was titrated with NaOH. 24.73 mL of titrant was required.
Determine the concentration of sodium hydroxide.
Answer:
Part 2: Titration of the unknown acid. 1.9875 g of the unknown acid was dissolved in 250.0 ml of water and
25.00 ml of this solution was titrated with the NaOH. 29.50 mL of titrant was required.
Determine the Molar Mass of the unknown.
on
Answer:

Transcribed Image Text:Identify the unknown acid from the following choices:
Succinic Acid
COOH(CH2)2COOH
Oxalic Acid
(COOH)2.2H,O
Adipic Acid
COOH(CH2)4COOH
Potassium Hydrogen Phthalate
COOHC,H,COOK
Sulfamic Acid
NH2SO;H
Citric Acid
COOHCH,C(OH)(COOH)CH;COOH
HINT: COOH represents a carboxylic acid group. Each time you see this qgroup in a molecular formula it
contributes one acidic proton.
O a. Adipic Acid
O b. Succinic Acid
O c. Oxalic Acid
O d. Potassium Hydrogen Phthalate
O e. Sulfamic Acid
O f. Citric Acid
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