Consider the following reaction.

Question

2KClO3(s) → 2KCl(s) + 3O2(g)

a.) How many grams of KCl are produced from the complete reaction of 12.5 mol of KClO3?

b.) How many grams of KCl are produced from the complete reaction of 38.4 g of KClO3?

Please explain how to solve for the answer with steps, thank you!

Answer 1

a. the balanced equation says you get the same number of moles of KCl as you had in KClO3.

b. figure out how many moles of KClO3 is in 38.4 g (38.4/molmassKClO3)

then you get the same number of moles of KCl, then figure grams
gramsKCl= (38.4/molmassKClO3)*molmassKCl