Stoichiometry

Front

If a chemist calculates the maximum amount of product that could be obtained in a chemical reaction, he or she is calculating the

Back

theoretical yield

Front

2 KClO₃ → 2 KCl + 3 O₂
How many moles of oxygen are produced when 6.7 moles of KClO₃ decompose completely?

Back

10.1 mol

Front

2Na + 2H₂O → 2NaOH+ H₂
How many grams of hydrogen are produced if 120 g of Na are available?

Back

5.2 g

Front

What is the measured amount of a product obtained from a chemical reaction?

Back

actual yield

Front

In the formation of CO₂ from CO and oxygen, how many Liters of CO₂ are produced by the reaction of 8 mols of O₂ with an excess of carbon monoxide?

Back

358.4 Liters

Front

SiO₂ + 3C → SiC + 2CO
I need to add 8 moles of Carbon to the reaction. How many grams of Carbon should I weigh?

Back

96 g

Front

Cl₂ + 2 KBr → Br₂ + 2 KCl
How many grams of potassium chloride can be produced from 356 g of chlorine and 356 g of potassium bromide?

Back

223 g

Front

A chemist interested in the efficiency of a chemical reaction would calculate the: mole ratio, rate of reaction, percent yield, energy released

Back

percent yield

Front

Excess Reagent

Back

what you have left over

Front

CH₄ + 2 O₂ → CO₂ + 2 H₂O
How many moles of carbon dioxide are produced from the combustion of 110 g of CH₄? Options: 13.7 mol, 2.75 mol, 6.11 mol, 6.85 mol

Back

6.85 mol