Question

9) H ow many moles of oxygen are formed when 58.6 g of KNO3 decomposes according to the…

9) H ow many moles of oxygen are formed when 58.6 g of KNO3 decomposes according to the
following reaction? The molar mass of KNO3 is 101.11 g/mol.
4 KNO3(s) ? 2 K2O(s) + 2 N2(g) + 5 O2(g)
9) _______
A) 0 .724 mol O2
B) 0 .580 mol O2
C) 1 .73 mol O2
D) 0 .290 mol O2
E) 1 8.5 mol O2

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