Question

volume of 4.4 gm of c02 gas at s.t.p at A.22.4lit B.2.24 lit C.11.2 lit D.1.12 lit​

Answer 1

$\LARGE{ \underline{\underline{ \red{ \bf{Required \: answer:}}}}}$

It was experimentally found that the volume of one gram molecular mass at normal temperature and pressure is 22.4 litres. This volume is known as Molar volume.

GiveN:

• Mass of CO2 gas = 4.4 g

To FinD:

• Volume of CO2 at STP?

Step-wise-Step Explanation:

First of all, Let's find the no. of moles of the given gas.

Molecular mass of CO2: 12 + 32 = 44

Formula:

$\boxed{ \rm{No. \: of \: moles = \frac{Given \: mass}{Molecular \: mass} }}$

Putting the values:

⇒ No. of moles = 4.4 / 44

⇒ No. of moles = 0.1 mole

Now, Molar volume of gas:

1 mole of CO2 = 22.4 litres

Then, 0.1 moles of CO2 = 2.24 litres (B)

Answer 2

Explanation:

Given :

• Mass of CO2 gas = 4.4 g

To Find :

• Volume of CO2 at STP?

Solution :

Molecular mass of CO2: 12 + 32 = 44

$\: \boxed{ \rm{No. \: of \: moles = \frac{Given \: mass}{Molecular \: mass} }}$

Substitute all values :

$\sf : \implies \: \: \: \: \: \: \: No. \: of \: moles = \cancel{\frac{4.4}{44} } \\ \\ \\ \sf : \implies \: \: \: \: \: \: \: No. \: of \: moles = 0.1$

Molar Volume of gas:

• Molar volume: The volume of one mole of a gas is called molar volume.

• At any STP condition (0°c and 1 atm), the molar volume of any gas is 22.4 .

$\underline{ \sf \bf \: {0.1 \: moles \: of } \: CO _{2}} \sf \: = 2.24$

Option b is correct !!