Question

How many formula units does 200.0 grams of calcium carbonate represent?

Answer 1

Question #50182, Chemistry, Other

How many formula units does 200.0 grams of calcium carbonate represent?

Answer:

CaCO₃ - calcium carbonate

M(CaCO₃) = 100 g/mol

m(CaCO₃) = 200.0 g

$$n(\mathrm{CaCO_3}) = \frac{m}{M} = \frac{200}{100} = 2 \text{ mol}$$

formul.units = n·Na = 2·6·022·10²³ = 1·2044·10²⁴

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