Question

7.5 g of gas occupy 5.8 l of volume at stp the gas is

Answer 1

heya guys

Given Mass of gas = 7.5 g

Volume = 5.6L

At STP = 1 mole of substance occupies 22.4L of volume.

Therefore for the above gas to acquire 22.4 L volume its mass should be 22.4/5.6 x 11 = 44g = molar mass of gas.

Since no element with molar mass 44 exists it may be a hetero-atomic gas most probably CO2​.

I hope this help u

Answer 2

NO(Nitrogen Oxide)

Explanation:

Given that,

Mass of Gas = 7.5 g

Volume at stp = 5.8 l

To find,

The gas = ?

Procedure:

Mass in 5.8 litre = 7.5 g

Mass in 22.4 litre at STP = 7.5/5.8 * 22.4

= 28.96

The molecular weight = 29

∵ The formula for molecular weight is NO(Nitrogen oxide).

Learn more: Gases

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