1.

Which one of the following is the lighest?

Answer»

0.2 mole of HYDROGEN gas
`6.023xx10^(22)` molecules of nitrogen
0.1 g of silver
0.1 mole of oxygen gas

Solution :(a) `0.2" mole of "H_(2)=0.2xx2g=0.4g`
(b) `6.02xx10^(22)" molecules of N"_(2)`
`=(28)/(6.02xx10^(23))xx6.02xx10^(22)=2.8g`
(c) `"0.1 g of silver = 0.1 g"`
(d) `"0.1 mole of O"_(2)=0.1xx32=3.2g`
(e) 1 g `H_(2)O=1`
Thus, g of silver is the lighest.


Discussion

No Comment Found

Related InterviewSolutions