Calculate the number of moles of ZnCl,in 100 mL of 0.300 M solution. A) 3.00 *10^-2 B) 0.300 C) 30.0 D) 3.00

Question

Quizplus · Accepted Answer

To calculate the number of moles of ZnCl2 in the given solution, we first need to use the formula:

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

We are given the volume of the solution as 100 mL or 0.1 L, and the molarity as 0.300 M. Therefore,

0.300 M = moles of ZnCl2 / 0.1 L

Solving for moles of ZnCl2, we get:

moles of ZnCl2 = 0.300 M x 0.1 L = 0.030 moles

Therefore, the number of moles of ZnCl2 in 100 mL of 0.300 M solution is 0.030 moles or 3.00 x 10^-2 moles. So, the correct answer is A) 3.00.

Calculate the Number of Moles of ZnCl,in 100 ML of 0.300