Question

how to do this shsjksjxnxjsjeknehejsjdiejdddx​

Answer 1

Answer:

We know that, Molar Mass of a gas = 2 x Vapour density of the gas

Molar mass can be found as:

Mass of one mole of gas = Molar mass of the gas

1 mole of gas at STP = 22.4 L.

5.6 L of gas = 8 g

22.4 L o f gas = (22.4x8) / 5.6 = 32 g

Thus, Mass of one mole of gas = 32 g.

So, molar mass of the gas = 32 g/mol

Vapour density = Molar mass / 2 = 32/2 = 16

hope it help you

Explanation:

Answer 2

Answer:

The gas is O₂ gas

Explanation:

We know that,

Number of moles = Given mass / Molar mass

Number of moles = Volume / 22.4

Hence,

Given mass / Molar mass = Volume / 22.4

Molar mass = Given mass * (22.4 / Volume)

Given in the question that,

Given mass = 8g

Volume = 5.6 litre

Substituting these values in we get,

Molar mass = 8 * (22.4 / 5.6)

Molar mass = 8 * 4

Molar mass = 32

In the given options,

Molar mass of :

1. H₂ = 1 + 1 = 2g
2. O₂ = 16*2 = 32g
3. O₃ = 16*3 = 48g
4. CH₄ = 12 + 1*4 = 12 + 4 = 16g

Hence, the gas is O₂ gas