Assertion (A): Equal moles of different subst | vedclass

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

Question

(C) The number of particles in a substance is given by $N = n 	imes N_A$, where $n$ is the number of moles and $N_A$ is Avogadro's constant $(6.022 \

Vedclass · Accepted Answer

$(A)$ is true, but $(R)$ is false

Vedclass · Answer

(C) The number of particles in a substance is given by $N = n 	imes N_A$, where $n$ is the number of moles and $N_A$ is Avogadro's constant $(6.022 	imes 10^{23} \ mol^{-1})$.Since $N_A$ is constant, equal moles $(n)$ of different substances contain the same number of constituent particles. Thus, Assertion $(A)$ is true.However, the number of moles is given by $n = \frac{w}{M}$, where $w$ is the weight and $M$ is the molar mass.Since different substances have different molar masses $(M)$, equal weights $(w)$ of different substances will result in different number of moles $(n)$, and consequently, a different number of constituent particles.Therefore, Reason $(R)$ is false.

Assertion $(A)$: Equal moles of different substances contain the same number of constituent particles.
Reason $(R)$: Equal weights of different substances contain the same number of constituent particles.
The correct answer is

Similar Questions

Assertion : Equal moles of different substances contain same number of constituent particles.
Reason : Equal weights of different substances contain the same number of constituent particles.

One molecule of water has a volume of ........ $\times 10^{-23} \text{ cm}^3$? (Density of water = $1 \text{ g cm}^{-3}$)

What is the numerical value of $\frac{N}{n}$? (Where $N$ is the number of molecules in a given gas sample and $n$ is the number of moles of the gas.)

What is the concentration of water?

The number of hydrogen atoms in $0.9 \ g$ glucose $(C_6H_{12}O_6)$ $(M_w = 180 \ g/mol)$ is same as

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Assertion $(A)$: Equal moles of different substances contain the same number of constituent particles.Reason $(R)$: Equal weights of different substances contain the same number of constituent particles.The correct answer is