What volume (mL) of a concentrated solution of sodium hydroxide (6.00 M) must be diluted to 200 mL to make a 0.88 M solution of sodium hydroxide?
A) 26.4
B) 176
C) 29.3
D) 50.0
E) 2.64

Question

Quizplus · Accepted Answer

Molarity of concentrated solution = 6.00 M
Molarity of diluted solution = 0.88 M
Volume of diluted solution = 200 mL
Let x be the volume of concentrated solution required.
The moles of solute in concentrated solution = the moles of solute in diluted solution
6.00 M * x = 0.88 M * 200 mL
x = (0.88 M * 200 mL) / 6.00 M 
x = 29.3 mL, which is the volume of concentrated solution required to make 200 mL of 0.88 M solution.

What Volume (ML) of a Concentrated Solution of Sodium Hydroxide