The number of gram atoms of oxygen in 0.2 × 1024 CO molecules is

Question

The number of gram atoms of oxygen in 0.2 × 1024 CO molecules is (A) 1 (B) 0.5 (C) 5 (D) 10

Tardigrade Admin · Accepted Answer

6.02 ×1023 molecules of CO = 1 mole of CO 6.02 × 1024 moles of CO = 10 moles of CO 1 mole of CO contains 1 g atom of oxygen 10 moles of CO contains 10 g atoms of oxygen

Q. The number of gram atoms of oxygen in $0.2 \times 1 0^{24}$ CO molecules is

1

0.5

5

10

$6.02 \times 1 0^{23}$ molecules of $CO = 1$ mole of $CO$
$6.02 \times 1 0^{24}$ moles of $CO = 10$ moles of $CO$
$1$ mole of $CO$ contains $1 g$ atom of oxygen
$10$ moles of $CO$ contains $10 g$ atoms of oxygen

Q. The number of gram atoms of oxygen in 0.2×1024 CO molecules is

1

0.5

5

10

6.02×1023 molecules of CO=1 mole of CO 6.02×1024 moles of CO=10 moles of CO 1 mole of CO contains 1g atom of oxygen 10 moles of CO contains 10g atoms of oxygen

Q. The number of gram atoms of oxygen in $0.2 \times 1 0^{24}$ CO molecules is

$6.02 \times 1 0^{23}$ molecules of $CO = 1$ mole of $CO$
$6.02 \times 1 0^{24}$ moles of $CO = 10$ moles of $CO$
$1$ mole of $CO$ contains $1 g$ atom of oxygen
$10$ moles of $CO$ contains $10 g$ atoms of oxygen