Acid Base Titration

Acid Base Titration - Acid-Base Titrations Objective: To...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Acid-Base Titrations Objective: To standardize a sodium hydroxide solution with titration of a standard hydrochloric acid solution. The standardized sodium hydroxide solution will be used to determine the molar mass of an unknown acid by titration and to determine the percentage of acetylsalicylic acid in an aspirin tablet. Experimental Data: Part A: Molarity of the standard HCl solution: Volume of NaOH used for titration: 20.24mL 19.78mL Part B: Mass of beaker: 31.827grams Mass of beaker and unknown acid: 32.837grams Volume of NaOH required for titration 20.07mL Mass of beaker: 31.835grams Mass of beaker and unknown acid: 32.835grams Volume off NaOH required for titration: 20.24mL Part C: Mass of beaker: 31.774grams Mass of beaker and aspirin tablet: 32.132grams Volume of NaOH required for titration: 6.37mL Sample Calculations: Part A: Average volume of NaOH solution: (20.24mL + 19.78mL)/2 = 20.01mL = 0.0200L Molarity of NaOH solution: V NaOH M NaOH = V HCl M HCl (0.02001L NaOH)(M NaOH ) = (0.025L HCl)(0.200M HCl) M NaOH = 0.250 mol NaOH/L Part B: Average volume of NaOH Solution
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
(20.07 + 20.24)/2 = 20.16mL = 0.0202L
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

Acid Base Titration - Acid-Base Titrations Objective: To...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online