To make 1.5 L of 0.1 M NaCl from a 2.52 M stock solution, you would need to take

Question

____ mL of the stock solution and add _____ mL of water.

Answer 1

M1V1=M2V2

so

0.1 M x 1.5 L= 2.52 x ?L
?L of 2.52 M stock solution= 0.05 L

To find out how much water you need to add just subtract 1.5 L of original solution from 0.05 L.

so 1.5 L - .05 L = amount of water in L
then just convert you answers to mL.