Question

Calculate the mass of hydrochloric acid in gram in 25ml of 0.75 molar solution.


Pls give the solution​

Answer 1

Mass of HCl = 0.68g

Explanation:

We know that molarity = moles of solute / volume of solution in liters

Given that we have 0.75 molar solution and volume of solution is 25 ml.

Let's convert to the required SI unit first.

Volume of solution = 25 / 1000 = 0.025 liters

Molarity = 0.75

Moles of hydraulic acid = 0.01875

Moles of hydraulic acid = mass / molar mass

Therefore mass = moles of HCl * molar mass = 0.01875* 36.46 = 0.68g