3Cl_2 + 6KOH \to KClO_3 + 5KCl + 3H_2O, how many moles of KClO_3 form when 2 grams of KOH reacts...


{eq}3Cl_2 + 6KOH \to KClO_3 + 5KCl + 3H_2O, {/eq} how many moles of {eq}KClO_3 {/eq} form when 2 grams of KOH reacts completely?

Mole Ratios

A balanced chemical equation is very helpful when the analyst wishes to know how many moles of each reagent participate in the reaction. The coefficients of the individual species indicate the number of moles of that species required for, or produced by, the complete reaction. The ratios between these coefficients are called 'mole ratios' and are instrumental in stoichiometric analyses.

Answer and Explanation: 1

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Let's first find the number of moles of KOH in 2 g. The molar mass of the salt is:

{eq}39 + 16 + 1 = 56 \ g/mol {/eq}.

Hence, our sample contains:


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Learn more about this topic:

Mole-to-Mole Ratios and Calculations of a Chemical Equation


Chapter 9 / Lesson 2

Learn about the mole ratio. Understand the definition of mole ratio, how to find mole ratio in stoichiometry, and see examples of using mole ratio in problems.

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