59.0k views
5 votes
Calculate the volume of pure water that used to dilute 100 ml of 12 M NaOH to 4.75 M.

2 Answers

4 votes

molarity=number of moles/volume

First we find the number of moles of NaOH we have the molarity and the volume we transform mililiters in liters 100ml=0.1l

12=n/0.1 n=1.2 moles of NaOH

now we find the volume of the second solution

4.75=1.2/V

V=1.2/4.75=0.252l

0.252-0.1=0.152liters=152ml of pure water used to dilute

User BrownChiLD
by
7.8k points
6 votes

Answer:

152.63 ml.

Step-by-step explanation:

By proportion to get a 4.75 M solution the volume will be

(12/4.75) * 100 = 252.63 ml

So the answer is 152.63 ml.

User Prada
by
8.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.