One litre of an unknown gas weighs 1.25 gram at ntp which of the following gas Britain's to the above data
Answer (1)
Student Expert
4th Aug, 2019
Answer:N2
Explanation: At NTP
22.4 litre is required for 1 mol
Hence 1 litre can make 1÷22.4 mol
Now number of moles = 1÷22.4
Number of moles=
molecular mass÷molar mass
ie, n= m÷ M
Hence M= m÷n
= 1.25÷(1÷22.4)
= 28 g
Answer is N2
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