How much substance is 14 g of silicon?
| April 28, 2021 | education
Given:
m (Si) = 14 g.
To find:
n (Si) -?
Decision:
If we know the mass of a substance, then its amount can be found by the formula n = m / M (Where n is the amount of the substance, m is the mass of the substance, M is the molar mass of the substance).
Molar mass (M) silicon (Si) = 28 g / mol.
Now we substitute the known to the formula for finding the amount of substance.
n (Si) = 14 g / 28 g / mol.
n (Si) = 0.5 mol.
Answer: n (Si) = 0.5 mol.
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