How many grams of potassium chloride are produced it 25g of potassium chlorate

Question

decompose?

Answer 1

The molar mass of potassium chloride (KCl) is 74.55 g/mol and the molar mass of potassium chlorate (KClO3) is 122.55 g/mol.

First, calculate the number of moles of potassium chlorate:
25 g / 122.55 g/mol = 0.204 moles of KClO3

Since the balanced chemical equation for the decomposition of potassium chlorate is:
2KClO3 -> 2KCl + 3O2

We can see that 2 moles of KClO3 produce 2 moles of KCl. Therefore, the number of moles of KCl produced is also 0.204 moles.

Now, calculate the mass of potassium chloride produced:
0.204 moles * 74.55 g/mol = 15.19 grams of KCl

Therefore, 15.19 grams of potassium chloride are produced when 25 grams of potassium chlorate decomposes.