How much water must be added to 36.0 g of CaCl₂ to produce a solution that is 35.0 wt% CaCl₂? A)48.6 g B)66.9 g C)97.2 g D)103 g

Question

Quizplus · Accepted Answer

We need to find the mass of the solution after the water has been added. Let's assume that we add 'x' grams of water to 36.0 g of CaCl2 to obtain a 35.0 wt% solution. 
Mass of CaCl2 = 36.0 g 
Mass of water = x g 
Total mass of solution = (36.0 + x) g 
Concentration of CaCl2 in the solution = 35.0 wt% = 35.0 g/100 g of solution

Now, we can set up the following equation:

(36.0 g of CaCl2) / (36.0 g of CaCl2 + x g of water) = 35.0 g/100 g

Solving for x, we get:

x = 66.9 g

Therefore, we need to add 66.9 g of water to 36.0 g of CaCl2 to produce a solution that is 35.0 wt% CaCl2.

How Much Water Must Be Added to 36