Question

How many millilitre 5 M HCl should be used to prepare 150 mL solution which is 0.3 M in H
+
ions?

Answer 1

Answer:

0.3 × 150 / 5 liters

Explanation:

divide by 1000 and convert into ml

Answer 2

Answer:

NV=N'V'

5×1×V=0.3×1×150

5×V=3×15

V=3×15/5

V=9

9ml should be used .