Calculate the number of molecules present in | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) $1$. At $STP$, $1 	ext{ mole}$ of any gas occupies a volume of $22.4 	ext{ dm}^3$.$2$. The number of moles $(n)$ in $2.24 	ext{ dm}^3$ of $CO_2

Vedclass · Accepted Answer

$6.022 	imes 10^{22}$

Vedclass · Answer

(A) $1$. At $STP$, $1 	ext{ mole}$ of any gas occupies a volume of $22.4 	ext{ dm}^3$.$2$. The number of moles $(n)$ in $2.24 	ext{ dm}^3$ of $CO_2$ is calculated as: $n = \frac{	ext{Given Volume}}{	ext{Molar Volume}} = \frac{2.24 	ext{ dm}^3}{22.4 	ext{ dm}^3/	ext{mol}} = 0.1 	ext{ mol}$.$3$. The number of molecules is given by: $	ext{Number of molecules} = n 	imes N_A$, where $N_A$ is Avogadro's number $(6.022 	imes 10^{23} 	ext{ molecules/mol})$.$4$. Therefore, $	ext{Number of molecules} = 0.1 	imes 6.022 	imes 10^{23} = 6.022 	imes 10^{22}$ molecules.

Calculate the number of molecules present in $2.24 \text{ dm}^3$ of carbon dioxide $(CO_2)$ at $STP$.

Similar Questions

What is the volume occupied by $16 \ g$ methane gas at $STP$ (in $cm^3$)?

The number of neutrons in $5 \ g$ of $D_2O$ ($D$ is $_1^2H$) are ................ $N_A$.

$A$ thin layer of cobalt is deposited on a plate with a total area of $0.5 \ m^2$ and a thickness of $0.005 \ cm$. How many cobalt atoms are deposited on the plate? (Density of cobalt $= 8.9 \ g \ cm^{-3}$,Atomic mass of $Co = 59 \ g \ mol^{-1}$)

What is the number of $CO_2$ molecules in $45.42 \ L$ at $\text{STP}$? (Consider molar volume of gas at $\text{STP} = 22.71 \ L \ mol^{-1}$)

Calculate the number of atoms of oxygen present in $176 \ g$ of $CO_2$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module