Question

Your teacher gives you a concentrated solution of 12M nitric acid. Since that
concentration is too high for your purposes, you dilute it to 128mL of 2.5M. How
much of the initial nitric acid do you need to make the final solution for your lab?

Answer 1

Answer:

26.7 mL

Explanation:

M1*V1 = M2*V2

M1 = 12M

V1=?

M2 = 2.5M

V2=128 mL

12M*V1 = 2.5M*128 mL

V1 = 2.5*128/12 mL≈ 26.7 mL