The number of molecules of CO2 present in 44 g of CO2 is:

Question

The number of molecules of CO2 present in 44 g of CO2 is: (A)  6.0× 1023  (B)  3× 1023  (C)  12× 1023  (D)  3× 1010

Tardigrade Admin · Accepted Answer

Key Idea: 1 mole = molecular mass in gram =6.02 × 1023 molecules Given ulass Uf CO 2=44 g Molecular mass of CO 2=12+16 × 2=44 ∴ No. of molecules in 44 g of CO 2=6.02 × 1023

Q. The number of molecules of $C O_{2}$ present in 44 g of $C O_{2}$ is:

$6.0 \times 10^{23}$

$3 \times 10^{23}$

$12 \times 10^{23}$

$3 \times 10^{10}$

Key Idea : 1 mole $=$ molecular mass in gram
$= 6.02 \times 1 0^{23}$ molecules
Given ulass Uf $C O_{2} = 44 g$
Molecular mass of $C O_{2} = 12 + 16 \times 2 = 44$
$∴$ No. of molecules in $44 g$
of $C O_{2} = 6.02 \times 1 0^{23}$

Q. The number of molecules of CO2​ present in 44 g of CO2​ is:

6.0×1023

3×1023

12×1023

3×1010