Question

7.5g of a gas occupy 5.8 litres of volume at STPthe gas is

(a) NO (b) N2O (c) CO (d) CO2​

Answer 1

hey buddy,

here is your ans..

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.

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