Question

60 g of HCL will make how many L of 2.5M HCL? (Molar Mass of HCL = 36.5g/mol)

Answer 1

Answer:

0.66 L

Explanation:

The molarity of a solution is given by:

$M=\frac{n}{V}$ (1)

where

M is the molarity of the solution

n is the number of moles of the solute

V is the volume of the solution

In this problem we have:

$m=60 g$ is the mass of the solute (HCl)

$M=2.5$ is the molarity of the solution

We also know that the molar mass of HCl is

$M_m=36.5 g/mol$

So, we can find the number of moles of HCl:

$n=\frac{m}{M_m}=\frac{60}{36.5}=1.64 mol$

And so using eq(1), we find the volume of the solution:

$V=\frac{n}{M}=\frac{1.64}{2.5}=0.66 L$