Question

What is the volume of water needed to prepare 5000 ml of 0.1 M HCL from a stock solution of4 M

e) 125 ml
b) 375 ml
c) 500 ml
d) none of them

Answer 1

Hey There :

Volume initial = ?

Volume final = 5000 mL

Molarity initial = 4 M

Molarity final = 0.1 M

Therefore :

Mi * Vi = Mf * Vf

4 * vi = 0.1 * 5000

4 vi = 500

Vi = 500 / 4

Vi = 125 mL

Answer A

Hope this helps!