How much NaOH is present in a 250.mL sample of a 5.00% (w/v)solution?
A)5.00 g
B)10.0 g
C)12.5 g
D)25.0 g
E)250 g

Question

Quizplus · Accepted Answer

To find the amount of NaOH present in the 5.00% (w/v) solution, we need to first convert the percentage to grams per milliliter (g/mL).

5.00% (w/v) means that there are 5.00 grams of NaOH present in 100 mL of solution.

So, we can calculate the amount of NaOH in the 250 mL sample as follows:

5.00 g NaOH / 100 mL solution = x g NaOH / 250 mL solution

x = (5.00 g NaOH / 100 mL solution) * 250 mL solution 
x = 12.5 g NaOH

Therefore, the answer is C) 12.5 g.

How Much NaOH Is Present in a 250