Question

What is the percent mass of 42.5 g KCl dissolved in 122.5 g water?

Answer 1

% mass of KCl = 25.76%

Step-by-step explanation

Given:

mass of KCl = 42.5 g

mass of water = 122.5 g

Required: The % mass of KCl

Solution:

Step 1: Calculate the total mass

42.5 g + 122.5 g = 165 g

Step 2: Calculate the % of KCl

%KCl = (42.5/165)*100

%KCl = 25.76%