Question

1) A solution contains 60 g of common salt in 420 g of water. Calculate the concentration in terms of mass by mass percentage of the solution

Answer 1

Answer:

The concentration of the solution containing 60 g of common salt in 420 g of water in terms of mass by mass percentage of the solution is 12.5%.

Explanation:

Given that mass of salt taken = 60 g

⇒Mass of solute = 60 g

Given that mass of water taken = 420 g

⇒Mass of solution = 420 + 60 = 480 g

We know that mass by mass percentage of a solution = (mass of solute ÷ mass of solution) × 100 %

= $\frac{60}{480}$ ×$100$

= 12.5 %

Therefore, the concentration of the solution containing 60 g of common salt in 420 g of water in terms of mass by mass percentage of the solution is 12.5%.