Answer: A volume of 58.69 mL of water would you add to 35.81 mL of 1.59 M acetic acid solution to make it a 0.97 M.
Step-by-step explanation:
Given: 
 = 35.81 mL, 
 = 1.59 M
 = ?, 
 = 0.97 M
Formula used to calculate volume is as follows.

Substitute the values into above formula as follows.

Thus, we can conclude that a volume of 58.69 mL of water would you add to 35.81 mL of 1.59 M acetic acid solution to make it a 0.97 M.