Question #9e481

1 Answer
Dec 9, 2014

The answer is #4.0g#.

We know that molarity is the concentration of a solution expressed by the number of moles of solute per liter of solution. This means that

#C = n_(solute)/(V_(solution)) -> n_(HCl) = C * V_(solution)#

So, #n_(HCl) = 1.5 (mol es)/(L) * 75 * 10^(-3) L = 0.11mol es#

Knowing that #HCl#'s molar mass is equal to #36.5 g/(mol)#, we can determine its mass by

#m_(HCl) = n_(HCl) * 36.5 g/(mol) = 0.11 mol es * 36.5 g/(mol e) = 4.0 g#