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The reaction between potassium superoxide, KO2, and CO2, 4
Chapter , Problem 3.62(choose chapter or problem)
The reaction between potassium superoxide, \(\mathrm{KO}_{2}\), and \(\mathrm{CO}_{2}\),
\(4\mathrm{\ KO}_2+2\mathrm{\ CO}_2\longrightarrow2\mathrm{\ K}_2\mathrm{CO}_3+3\mathrm{\ O}_2\)
is used as a source of \(\mathrm{O}_{2}\) and absorber of \(\mathrm{CO}_{2}\) in self-contained breathing equipment used by rescue workers.
(a) How many moles of \(\mathrm{O}_{2}\) are produced when 0.400 mol of \(\mathrm{KO}_{2}\) reacts in this fashion?
(b) How many grams of \(\mathrm{KO}_{2}\) are needed to form 7.50 g of \(\mathrm{O}_{2}\)?
(c) How many grams of \(\mathrm{CO}_{2}\) are used when 7.50 g of \(\mathrm{O}_{2}\) are produced?
Questions & Answers
QUESTION:
The reaction between potassium superoxide, \(\mathrm{KO}_{2}\), and \(\mathrm{CO}_{2}\),
\(4\mathrm{\ KO}_2+2\mathrm{\ CO}_2\longrightarrow2\mathrm{\ K}_2\mathrm{CO}_3+3\mathrm{\ O}_2\)
is used as a source of \(\mathrm{O}_{2}\) and absorber of \(\mathrm{CO}_{2}\) in self-contained breathing equipment used by rescue workers.
(a) How many moles of \(\mathrm{O}_{2}\) are produced when 0.400 mol of \(\mathrm{KO}_{2}\) reacts in this fashion?
(b) How many grams of \(\mathrm{KO}_{2}\) are needed to form 7.50 g of \(\mathrm{O}_{2}\)?
(c) How many grams of \(\mathrm{CO}_{2}\) are used when 7.50 g of \(\mathrm{O}_{2}\) are produced?
ANSWER:
Step 1 of 4
(a) The given reaction is:
The reaction stoichiometry indicates that 4 moles of 
So, the number of moles of 