Question

part a
4.63 mol of h₂o₂
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moles of oxygen = mol
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part b
2.00 mol n₂o
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moles of oxygen = mol
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Explanation:

Step1: Determine oxygen - atom ratio in $H_2O_2$

In $H_2O_2$, there are 2 moles of oxygen per 1 mole of $H_2O_2$.

Step2: Calculate moles of oxygen in $H_2O_2$

$n_{O}=4.63\ mol\ H_2O_2\times2 = 9.26\ mol$

Step3: Determine oxygen - atom ratio in $N_2O$

In $N_2O$, there is 1 mole of oxygen per 1 mole of $N_2O$.

Step4: Calculate moles of oxygen in $N_2O$

$n_{O}=2.00\ mol\ N_2O\times1 = 2.00\ mol$

Answer:

Part A: 9.26 mol
Part B: 2.00 mol