How many grams of NaOH (MW = 40.0)are there in 200.0 mL of a 0.175 M NaOH solution?
A).00219
B)114
C)1.40
D)0.0350
E)14.0

Question

Quizplus · Accepted Answer

First, we need to find the number of moles of NaOH present in the solution:

Molarity (M) = moles of solute / liters of solution

0.175 M = moles of NaOH / 0.2 L

moles of NaOH = 0.035 mol

To find the mass of NaOH present in the solution, we can use the following formula:

Mass = moles x molecular weight

Mass = 0.035 mol x 40.0 g/mol
Mass = 1.40 g

Therefore, the answer is C) 1.40.

How Many Grams of NaOH (MW = 40