Question

. The number of gram molecuies of oxygen in
6.02 x 1024 CO molecules is
(a) 10 g molecules (b) 5 g molecules
(c) 1 g molecules (d) 0.5 g molecules.​

Answer 1

Answer:

The number of gram molecules of oxygen in  CO molecule is 5g molecules.

Explanation:

Number of molecules of CO = 6.02 X $10^{24}$

Number of oxygen atoms:

1 X 6.02 X $10^{24}$ = 6.02 X $10^{24}$  atoms

1 oxygen  molecule is composed of 2 oxygen atoms.So, number of oxygen molecules:

$\frac{6.02\times 10^{24}}{2}=3.01\times 10^{24}$

Moles of oxygen gas:

$\frac{3.01\times 10^{24}}{6.02\times 10^{23}}=5 mol$

1 mole = 1 gram molecule of compound

5 mole = 5 gram molecules of oxygen

The number of gram molecules of oxygen in  CO molecule is 5 g molecules.