Anthony T. answered • 14d

Patient Math & Science Tutor

First subtract the beginning volume from the final volume to get the total volume of acid added:

1.202L - 1.200L = 0.002 L. Convert liters to milliliters 1000mL/1L x 0.002 L = 2 mL. As each drop of acid is 0.05 mL, the number of drops is 1drop/0.05mL x 2 mL = 40 drops. The percent of acid in the final solution is 2 mL/1202. x 100 = 0.16%.