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Sodium and water react accordingly to the following equation. If 32.8 g of sodium are added to...

Question:

Sodium and water react accordingly to the following equation. If 32.8 g of sodium are added to excess water, how many liters of hydrogen gas are formed at STP?

{eq}2Na + 2H_2 \rightarrow 2NaOH + H_2 {/eq}

Mole Ratio:

  • The reactants react in a particular mole ratio to form the specific number of moels of the product.
  • As the moles of the reactant that is reacting changes, the moles of the product formed is also changed. However, the mole ratio of the reacting substance does not change.
  • Mole ratio predicts the limiting reactant and excess reactant.

Answer and Explanation: 1

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In the given reaction the mole ratio of the reactants is 2:2.

The molar mass of sodium is 23 grams.

The given mass of sodium is 32.8 grams.

Therefo...

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

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Chapter 9 / Lesson 2
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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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