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abruzzese [7]
3 years ago
10

This is the chemical formula for talc (the main ingredient in talcum powder): mg3(si2o5)2(oh)2. an analytical chemist fins that

there are 6.10 moles of magnesium in a sample of talc, how many moles of oxygen are in the sample?
Chemistry
1 answer:
weqwewe [10]3 years ago
7 0
In one mole of talc, we observe that there are:
3 moles of Mg
4 moles of Si
2 moles of H
12 moles of O

The molar ratio of O to Mg is then:

12 moles of O : 3 moles of Mg = 4 : 1

Therefore, if 6.1 moles of Mg are present, the moles of O are:

4 * 6.1 = 24.4 moles of O
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