Question

Refer to the example about diatomic gases A and B in the text to do problems 20-28.

mol
How many moles of product are formed?

Answer 1

The number of moles of product in a chemical reaction can be determined using the stoichiometric coefficients from the balanced chemical equation and the initial amount of reactants.

Step-by-step explanation:

Calculating the number of moles of product formed in a chemical reaction typically involves using the stoichiometric coefficients from the balanced chemical equation. This is crucial when you want to deduce how much product is produced from a given amount of reactants. To determine the number of moles of product, you would use the following general equation:

(moles of product) = (moles of reactant) × (stoichiometric mole ratio)

For instance, in the decomposition of hydrogen peroxide (H2O2), if you have 0.28 moles of H2O2, and the balanced equation is 2 H2O2 (l) → 2 H2O (l) + O2 (g), the mole ratio of O2 to H2O2 is 1:2. Using this ratio, we can calculate the moles of oxygen as follows:

0.14 mol O2 = 0.28 mol H2O2 × (1 mol O2 / 2 mol H2O2)

This simple multiplication gives you the number of moles of oxygen gas produced from the given amount of hydrogen peroxide.