Question

Use the Henderson–Hasselbalch equation to calculate the pH of each solution:

Part A

Calculate the ratio of NaF to HF required to create a buffer with pH = 3.85. Express your answer using two significant figures.

Part B

a solution that contains 1.33% C2H5NH2 by mass and 1.39% C2H5NH3Br by mass

Express your answer using two decimal places.

Part C

a solution that is 15.0 g of HC2H3O2 and 10.5 g of NaC2H3O2 in 150.0 mL of solution

Express your answer using two decimal places.

Answer 1