Consider the following reaction. \\ 2KClO_3 (s) \rightleftharpoons 2KCl (s) + 3O_2(g) \\ How...


Consider the following reaction.

$$2KClO_3 (s) \rightleftharpoons 2KCl (s) + 3O_2(g) $$

How many grams of {eq}KCl {/eq} are produced from the complete reaction of 5.39 mol of {eq}KClO_3 {/eq}?

Moles and Molar Mass:

If the mass of a substance is provided in {eq}\text{g} {/eq} and each substance contains its own molar mass that is measured in {eq}\text{g/mol} {/eq}. The mass of this substance per unit molar mass is referred to as the number of moles of the substance. The mathematical expression to compute the number of moles of a substance is:

$$\begin{align} \color{blue}{n=\frac{m}{M}} \end{align} $$


  • {eq}m {/eq} is the given mass of the substance.
  • {eq}M {/eq} is the molar mass of the substance.

Answer and Explanation: 1

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Given Reaction:

  • {eq}2KClO_3 (s) \rightleftharpoons 2KCl (s) + 3O_2(g) {/eq}

From the above reaction, {eq}2 \ \text{mol} {/eq} of...

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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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