II. A. Give at least 3 primary standards for standardization of (a) HCl, H2SO4, (b) NaOH, KOH, Ba(OH)2 B. State the prop
Posted: Wed Jul 06, 2022 11:01 am
II. A. Give at least 3 primary standards for standardization of (a) HCl, H2SO4, (b) NaOH, KOH, Ba(OH)2B. State the properties of each primary standards and the limitations as to its application.
III. Solution Preparation (A Review) [Show your solutions.] Describe the preparation of
a. 750mL of a solution that is 0.09M in K+, from solid K4Fe(Cn)6.
b. 500mL of 2% (w/v) aqueous BaCl2 from a 0.500M BaCl2 solution.
IV. Titration Curves. Solve the ff. Problems
1. A 25mL aliquot of 0.1M NaOH is titrated with 0.10M HCl. Calculate the pH of the solution after the addition of 0, 5, 10, 25, 30, 35, and 40mL of acid and prepare a titration curve from the data by plotting the pH versus the volume of the titrant.
2. Calculate the pH at 0,10,25,50 and 60mL of titrant in the titration of 50mL, 0.1M HCOOH with 0.1M NaOH. Ka=1.80x10°-4
III. Solution Preparation (A Review) [Show your solutions.] Describe the preparation of
a. 750mL of a solution that is 0.09M in K+, from solid K4Fe(Cn)6.
b. 500mL of 2% (w/v) aqueous BaCl2 from a 0.500M BaCl2 solution.
IV. Titration Curves. Solve the ff. Problems
1. A 25mL aliquot of 0.1M NaOH is titrated with 0.10M HCl. Calculate the pH of the solution after the addition of 0, 5, 10, 25, 30, 35, and 40mL of acid and prepare a titration curve from the data by plotting the pH versus the volume of the titrant.
2. Calculate the pH at 0,10,25,50 and 60mL of titrant in the titration of 50mL, 0.1M HCOOH with 0.1M NaOH. Ka=1.80x10°-4