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Lesson 8.3

Last updated about 5 hours ago
3 questions
Required
1
Correctly fill in the stoichiometric problem to answer the following question.
How many grams of water are produced by 3.75 g of calcium hydroxide.
3Ca(OH)2 + 2H3PO4 --> Ca3(PO4)2 + 6H2O

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Other Answer Choices:
3.75 g Ca(OH)2 1
6 moles H2O 3 moles Ca(OH)2
18.02 g H2O 1 mole H2O
1 mole Ca(OH)2 74.19 g Ca(OH)2
Required
1

How many grams of water are produced by 3.75 g of calcium hydroxide?
3Ca(OH)2 + 2H3PO4 --> Ca3(PO4)2 + 6H2O

Required
1
Correctly fill in the stoichiometric problem to answer the following question.
How many grams of oxygen are needed to produce 5.2 g of chromium (II) oxide.
4 Cr + 3 O2 --> 2 Cr2O3
Other Answer Choices:
32 g O2
3 mol O2
2 mol Cr2O3
151.98 g Cr2O3
5.2 g Cr2O3
1 mol O2
1
1 mol Cr2O3