Answer:

Required Answer:-

Given :

Mass of HCl = 30 g

Mass of solution = 200 g

To Find :

Percentage of HCl acid in the solution.

Solution :

❒ Mass by mass percentage concentration of solution is defined as the amount of solute in grams dissolved present 100 grams of solution

Then,

m = mass of solute

M = mass of solution

⇛ m/M % = m of solute / M of solution × 100

⇛ m/M % = 30 g / 200 g × 100

⇛ m/M % = 30 / 2 %

⇛ m/M % = 15 %

Hence:-

The HCl makes 15 % of the total dilute acid solution.

Explanation:

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