Question

A sample of calcium fluoride was decomposed into the constituent elements. Write a balanced chemical equation for the decomposition reaction. If the sample produced 294 mg of calcium, how many g of fluorine were formed

Answer 1

A sample of calcium fluoride was decomposed into the constituent elements. Write a balanced chemical equation for the decomposition reaction. If the sample produced 294 mg of calcium, how many g of fluorine was formed

Step-by-step explanation:

The balanced chemical equation for the decomposition of calcium fluoride is shown below:

`CaF_2(s)->Ca(s)+F_2(g)`

The sample produced 294 g of calcium then, how many grams of fluorine is formed?

From the balanced chemical equation,

1 mol of CaF2 forms 1mol of calcium and 1 mol of fluorine.

That is:

40g of calcium and 38.0 g of fluorine are formed.

then,

If 294 g of calcium is formed then how many grams of fluorine is formed?

`294g Ca * 38g F2 / 40g Ca\\=279.3 g F_2`

Hence, 279.3 g of fluorine will be formed.