Question

What volume of 0.10 M NaOH can be prepared from 250. mL of 0.30 M NaOH?
A) 0.075 L
B) 0.25 L
C) 0.75 L
D) 0.083 L
E) 750 L

Answer 1

mL1 x M1 = mL2 x M2
250 mL x 0.30M = mL2 x 0.10

Answer 2

.083