How many grams of calcium hydroxide can be obtained from calcium oxide with a mass of 5.6 g?

Let’s implement the solution:

In accordance with the condition of the problem, we compose the equation of the process:
m = 5.6 g X g -?

CaO + H2O = Ca (OH) 2 – compounds, calcium hydroxide is released;

Calculations:
M (CaO) = 56 g / mol;

M Ca (OH) 2 = 74 g / mol;

Y (CaO) = m / M = 5.6 / 56 = 0.1 mol;

Y Ca (OH) 2 = 0.1 mol since the amount of substances is 1 mol.

Find the mass of the base:
m Ca (OH) 2 = Y * M = 0.1 * 74 = 7.4 g

Answer: Received calcium hydroxide weighing 7.4 g