Carbon Monoxide reacts with hydrogen gas to form methanol. If 10.0 grams of carbon monoxide and...

Question:

Carbon Monoxide reacts with hydrogen gas to form methanol. If 10.0 grams of carbon monoxide and 10.0 grams of hydrogen gas are allowed to react with each other, what is the theoretical yield of methanol?

Quantitative Chemistry and Stoichiometry

To measure the number of entities in chemistry, the unit 'mole' is used. One mole = {eq}6.022\times10^{23} {/eq} entities. A mass can be converted into moles using:

{eq}\text{Amount of substance (moles)} = \frac{\text{mass (g)}}{\text{Relative Molecular Mass}\ (g\ mol^{-1})} {/eq}

The relative molecular mass is the sum of the relative atomic masses of the elements in the molecule. These can be found on a periodic table, it is the larger number on the element symbol.

Stoichiometry shows the proportion of each substance which reacts and ensures the amount of each element is the same on both sides of the chemical equation.

Answer and Explanation:

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The stoichiometric equation is as follows:

{eq}CO + 2H_2 \rightarrow CH_3 OH {/eq}

Now work out the number of moles of each reactant:

{eq}CO: \\m...

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Mass-to-Mass Stoichiometric Calculations

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Chapter 9 / Lesson 3
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Learn to define and explain what stoichiometry is. Learn how to convert mass to mass in stoichiometry. Discover stoichiometry mass to mass and mole to mass problems.


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