The formula to find out the number of moles at STP is Number of moles - Molar volume at STP litres -V o l u m e ITP litres

You visited us 5 times! Enjoying our articles? Unlock Full Access!

Volume of Gases and Number of Moles

The formula t...

Question

The formula to find out the number of moles at STP is

Number of moles = $\frac{Molar volume at STP (litres)}{Volume at STP (litres)}$

True

No worries! We‘ve got your back. Try BYJU‘S free classes today!

False

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is B
False

The temperature of 273 K and pressure of 1 atmosphere are known as standard temperature and pressure. At STP, one mole of any gas will have a volume of 22.4 L. This volume is known as molar volume of a gas at STP. The formula to find out the number of moles at STP is

Number of moles= $\frac{Volume at STP (litres)}{Molar volume at STP (litres)}$

Suggest Corrections

Similar questions

At STP air contains 22.4% by volume of oxygen. The number of moles of oxygen present in 1 litre of air are

Q. How the volume of a gas is related to the number of moles? What is the volume of one mole of a gas at STP?

Q. The volume of chlorine gas at

S T P

(in

L i t r e s

) required to completely react with 5 moles of hot and concentrated

N a O H

solution is:

(a) Calculate the number of moles and number of molecules present in 1.4 g of ethylene gas. What is the volume occupied by the same amount of ethylene?
(b) What is the vapour density of ethylene?
(Avogadro's number = 6 × 10²³; Atomic weight of C = 12, H = 1; Molar volume = 22.4 litres at STP)

Q. A mixture contains

2

moles of

N a_{2} C O_{3}

and

1

mole of

L i_{2} C O_{3}

. The volume (in litres) of

C O_{2}

formed on heating this mixture at STP is :

Join BYJU'S Learning Program

The formula to find out the number of moles at STP is Number of moles = Molar volume at STP (litres)Volume at STP (litres)

The formula to find out the number of moles at STP is

Number of moles = $\frac{Molar volume at STP (litres)}{Volume at STP (litres)}$