Question

volume of 4 grams of a substance at STP is 5.6 litres. what is the molar mass of the substance​

Answer 1

Answer:Correct option is

C

88 g

1mole gas occupies 22.4L of volume at STP.

∴5.6 litre of gas=  

5.6

22.4

​  

 moles

⟹5.6 litre of gas indicates 0.25 moles of gas.

Given that,

0.25moles of gas weights 22g.

⟹1mole of gas weight 22×4=88g

Hence, molecular weight of gas 88g.

Explanation: