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Stoichiometry Sprint

Chemistry challenge: Master chemical stoichiometry through a set of progressively harder problems.

Scenario

You will balance equations, find limiting reagents, and calculate theoretical yields. Work systematically through each problem.

Question 1

In the reaction 2H₂ + O₂ → 2H₂O, if you have 4 mol H₂ and 1 mol O₂, which is the limiting reagent?

H₂O₂H₂ONeither — they are in stoichiometric ratio

Question 2

In 2H₂ + O₂ → 2H₂O, how many moles of water form from 1 mol O₂?

mol

Question 3

How many grams of H₂O are produced from 1 mol O₂ (molar mass H₂O = 18 g/mol)?

Question 4

Which step correctly begins any stoichiometry calculation?

Convert mass to moles using MWrite the word equation firstBalance the chemical equationCalculate percent yield

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