Determine the mass of water required to prepare a 10% sodium carbonate solution from

Determine the mass of water required to prepare a 10% sodium carbonate solution from crystalline soda weighing 54 g.

In this solution, 50 grams of salt will have a mass fraction of 11%.

Let’s calculate the weight of the solution. To do this, divide the weight of the salt by its mass fraction.

M solution = M salt / C salt = 54 / 0.1 = 540 grams;

Let’s determine the weight of the water.

To do this, subtract the weight of the salt from the weight of the solution.

M water = M solution – M salt = 540 – 54 = 486 grams;

Let’s check:

54 + 486 = 540;

486/540 = 0.9 = 90%;