Question

in 90g of 20%(w/w) of aqueous Salt solutions 10g more water is added then find the final concentration of the solution. Please answer this I will mark you as brainliest

Answer 1

Answer:

18% w/w

Explanation:

just expand the given concentration term and solve the question as given.

Answer 2

Given:

The initial mass of solution = 90 gm

The initial mass percentage of aqueous salt solution = 20 %

The mass of water added = 10 gm

To Find:

The final concentration of the solution.

Calculation:

- The mass of salt in solution = 90 × 20 / 100 = 18 gm

- The final mass of solution = 90 + 10 = 100 gm

- The final concentration of the solution = (18 / 100) × 100

⇒ The final concentration of the solution = 18 %

- So, the final concentration of the solution is 18 % (w/w).