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Standard X

Chemistry

Mole Concept

Which of the ...

Question

Which of the following expressions is correct (n = no. of moles of the gas, N $_{A}$ = Avogadro constant, m = mass of $1$ molecule of the gas, N = no. of molecules of the gas)?

n = mN

_{A}

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m = N

_{A}

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N = nN

_{A}

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m = n/N

_{A}

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Solution

The correct option is C N = nN $_{A}$
As we know, $N = n \times N_{A}$ .

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Similar questions

Q. Which of the following expressions is correct ? (

n

= number of moles of the gas,

N_{A}

= Avogadro constant.

m

= mass of 1 molecule of the gas.

N

= number of molecules of the gas)

Q. The numerical value of

N / n

(where

N

is number of molecules in a given sample of gas and

n

is the number of moles of the gas) is:

Q. For gas samples, most probable speed is

800 m/s

. The molecules travelling with speed

799 - 800 m/s

are

N_{1}

, molecules travelling with speed

899 - 900 m/s

are

N_{2}

and molecules travelling with speed

999 - 1000 m/s

are

N_{3}

, then

If the potential energy of a gas molecule is

U= M/r⁶- N/r¹²

M&N being positive constant, then the potential energy at equilibrium must be

a: zero. b: M²/4N. c:NM²/4. d:MN²/4

If $10^{22}$ gas molecules each of mass $10^{- 26} k g$ collide with a surface (perpendicular to it) elastically per second over an area $1 m^{2}$ with a speed $10^{4} m / s$ , the pressure exerted by the gas molecules will be of the order of

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Which of the following expressions is correct (n = no. of moles of the gas, NA = Avogadro constant, m = mass of 1 molecule of the gas, N = no. of molecules of the gas)?

The correct option is C N = nNAAs we know, N=n×NA.

Which of the following expressions is correct (n = no. of moles of the gas, N $_{A}$ = Avogadro constant, m = mass of $1$ molecule of the gas, N = no. of molecules of the gas)?

The correct option is C N = nN $_{A}$
As we know, $N = n \times N_{A}$ .