The number of molecules in 100 mL of 0.02 NH2SO4 is

Question

The number of molecules in 100 mL of 0.02 NH2SO4 is (A)  6.022× 1022 (B)  6.02× 1021 (C)  6.02× 1020 (D)  6.02× 1018

Tardigrade Admin · Accepted Answer

For H 2 SO 4, Normality, N=2 M or M=(N/2)=(0.02/2)=0.01 Moles of H 2 SO 4=(0.01 × 100/1000) =1 × 10-3 ∴ Number of molecules in 100 mL of 0.02 N H 2 SO 4 =1 × 10-3 × NA =1 × 10-3 × 6.023 × 1023 =6.023 × 1020

Q. The number of molecules in $100 m L$ of $0.02 N H_{2} S O_{4}$ is

$6.022 \times 1 0^{22}$

$6.02 \times 1 0^{21}$

$6.02 \times 1 0^{20}$

$6.02 \times 1 0^{18}$

Q. The number of molecules in 100mL of 0.02NH2​SO4​ is

6.022×1022

6.02×1021

6.02×1020

6.02×1018

For H2​SO4​, Normality, N=2M or M=2N​=20.02​=0.01 Moles of H2​SO4​=10000.01×100​ =1×10−3 ∴ Number of molecules in 100mL of 0.02N H2​SO4​=1×10−3×NA​ =1×10−3×6.023×1023 =6.023×1020

Q. The number of molecules in $100 m L$ of $0.02 N H_{2} S O_{4}$ is

$6.022 \times 1 0^{22}$

$6.02 \times 1 0^{21}$

$6.02 \times 1 0^{20}$

$6.02 \times 1 0^{18}$