Question

Mg3(Si2O5)2(OH)2

There are .0893 moles of magnesium how many moles of silicon are there in the sample?

Answer 1

Answer:

0.0595 moles of silicon (Si)

Explanation:

From the chemical formula of the compound we devise the following reasoning:

if for        3 moles of magnesium (Mg) we have 2 moles of silicon (Si)

then for  0.0893 moles of magnesium (Mg) we have X moles of silicon (Si)

X = (0.0893 × 2) / 3 = 0.0595 moles of silicon (Si)