When zinc interacted with a solution of orthophosphoric acid, 0.224 liters of hydrogen was released.

When zinc interacted with a solution of orthophosphoric acid, 0.224 liters of hydrogen was released. What mass of zinc reacted with the acid?

When zinc metal is dissolved in acid, hydrogen gas is released. In this case, regardless of which acid is used, 1 mol of hydrogen is released per 1 mol of dissolved zinc.

Let’s calculate the chemical amount of hydrogen. To do this, divide the volume of gas by the volume of 1 mole of gas (22.4 liters).

N H2 = 0.224 / 22.4 = 0.01 mol;

Determine the weight of zinc. To do this, multiply the amount of substance by the weight of 1 mole of metal.

m Zn = 0.01 x 65 = 0.65 grams;