Question

Which has maximum number of atoms?


1)4 gm of O2


2)4 gm of CH4


3)4 gm of CO2


4)4 gm of He

Answer 1

Answer:

4 gm of helium has maximum number of atoms

Explanation:

using givenmass/molar mass=number of atoms/avagodaro number of atoms

Answer 2

Answer:

4) 4gm of He

Explanation:

1. no of atoms in O2= (4/32)*Na=0.125 Na; (Na=Avogardo's no)

2.no of atoms in CH4=(4/16)*Na=0.25 Na;

3.no of atoms in Co2=(4/44)*Na=0.09 Na;

4.no of atoms in He=(4/4)*Na=Na;

Hence you can see max no of atoms we have found is in He=Na;

You Can also solve by writing complete value of Na, but there is no need to complicate you question as we have Na in every part of this ques..