How many moles of oxygen atoms are present in 1 gram molecule of $N_{2} O_{5}$ ?

1 mol

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5 mol

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2 mol

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10 mol

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Solution

The correct option is B 5 mol
$1 gram-molecule of N_{2} O_{5} = 6.022 \times 10^{23} molecules of N_{2} O_{5} = 1 mole of N_{2} O_{5}$

1 mole of $N_{2} O_{5}$ contains 5 moles of oxygen.
5 moles of oxygen atoms are present in 1 gram-molecule of $N_{2} O_{5}$ .

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Mole Concept

Standard XII Chemistry

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How many moles of oxygen atoms are present in 1 gram molecule of N2O5?

The correct option is B 5 mol1 gram-molecule of N2O5=6.022×1023molecules of N2O5=1 mole of N2O5 1 mole of N2O5 contains 5 moles of oxygen. 5 moles of oxygen atoms are present in 1 gram-molecule of N2O5.

How many moles of oxygen atoms are present in 1 gram molecule of $N_{2} O_{5}$ ?

The correct option is B 5 mol
$1 gram-molecule of N_{2} O_{5} = 6.022 \times 10^{23} molecules of N_{2} O_{5} = 1 mole of N_{2} O_{5}$

1 mole of $N_{2} O_{5}$ contains 5 moles of oxygen.
5 moles of oxygen atoms are present in 1 gram-molecule of $N_{2} O_{5}$ .