Potassium chlorate, KClO3, acts as an oxidizing agent in matches, explosives, fl

Question

Potassium chlorate, KClO3, acts as an oxidizing agent in matches, explosives, flares, and fireworks. In the equation below, it is formed from the element chlorine and potassium hydroxide. a. 3Cl2 +6KOHKClO3 +5KCl+3H2O

a. Write a conversion factor that could be used to convert between moles of potassium hydroxide and moles of potassium chlorate.

b.How many moles of potassium chlorate form when 5 grams of potassium hydroxide react completely?

c. What is the maximum number of moles of KClO3 that could form in the combination of 9.0 moles of Cl2 with 6.0 moles of KOH?

Explanation / Answer

a)

moles of KOH to mol of KClO3

ratio is

6 mol of KOH = 1 mol of KClO3

then ratio/factor is 1/6

b)

moles of KClO3 from:

5 g of KOH

mol of KOH = mass/M W= 5/56.10564 = 0.08911

then..

ratio was 1:6

mol of KclO3 = 1/6*0.08911

mol of KCLO3 = 0.01485

c

max KCLo3 from:

3 mol of Cl2 = 6 mol of KOH

then, KOH limits reaction

6 mol of KOH = 1 mol of KClO3 max.

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