# What is the maximum mass of sodium hydroxide that can be obtained from sodium oxide

September 25, 2021 | education

| **What is the maximum mass of sodium hydroxide that can be obtained from sodium oxide by a chemical amount of 0.56 mol.**

To solve it, we will compose an equation, indicate the coefficients:

Na2O + H2O = 2NaOH – hydration reaction, sodium hydroxide obtained;

Let’s determine the molar masses of substances:

M (Na2O) = 61.8 g / mol;

M (NaOH) = 39.9 g / mol;

Let’s calculate the number of moles of sodium hydroxide:

0.56 mol (Na2O) – X mol (NaOH);

-1 mol -2 mol hence, X mol (NaOH) = 0.56 * 2/1 = 1.12 mol;

We find the mass of sodium hydroxide by the formula:

m (NaOH) = Y * M = 1.12 * 39.9 = 44.68 g.

Answer: in the course of the reaction, sodium hydroxide with a mass of 44.68 g was obtained.

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