Calculate the mass of magnesium that can react with 150 g of hydrochloric acid solution with a mass fraction

Calculate the mass of magnesium that can react with 150 g of hydrochloric acid solution with a mass fraction of a substance of 10% Chemical equation: Mg + 2HCI = MgCI2 + H2

1) Find the mass of hydrochloric acid in its solution by the formula:

mass fraction of solute in solution = mass of substance: mass of solution * 100%.

Let’s substitute the data from the problem statement into this formula:

10% = x: 150g * 100%.

x = 10% * 150 g: 100% = 15 (g). It is this mass of acid that will react with magnesium. We will use it to calculate the mass of magnesium.

2) Calculate the mass of magnesium according to the reaction equation:

Mg + 2HCl -> MgCl2 + H2.

x = 24.3 * 15: 73 = 4.99 (g) magnesium will be needed.