Question

PLZ Help asap!!!!

Sulfuric acid is purchased full-strength at 18.0M. How many milliliters of full-strength acid are needed to prepare 500.0 mL of aqueous 0.35M H2SO4? Round your answer to 3 significant figures.
A. 13.4 mL
B. 82.6 mL
C. 9.70 mL
D. 79.0 mL

Answer 1

C. 9.70

Step-by-step explanation:

Hello,

This problem is a simple dilution problem which utilizes the formula M1V1= M2V2 (where M is molarity, V is volume). I have attached a helpful image as well.

M1 V1 = M2 V2

(18) (x) = (0.35) (500)

x = 9.72mL which is close enough to option C.