How many grams of water are needed to react with 27.2 grams of Li₂O?
Given: Li₂O + H₂O → 2 LiOH

Name: How many grams of water are needed to react with 27.2 grams of Li 2 O? Given: Li 2 O + H 2 O → 2 LiOH
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Question

How many grams of water are needed to react with 27.2 grams of Li₂O? Given: Li₂O + H₂O → 2 LiOH

Quizplus · Accepted Answer

The molar mass of Li2O is 29.88 g/mol. 27.2 g of Li2O is 27.2 / 29.88 = 0.91 mol. The balanced equation shows a 1:1 molar ratio between Li2O and H2O, so 0.91 mol of H2O is needed. The molar mass of H2O is 18.02 g/mol, so 0.91 mol of H2O is 0.91 * 18.02 = 16.4 g.

How Many Grams of Water Are Needed to React with 27.2