1.

A gas diffuses 1//5 times as fas as hydrogen. Its molar mass is :

Answer»

25
50
`25 SQRT( 2)`
`50 sqrt( 2)`

SOLUTION :`( r ( GAS))/( r ( H_(2))) = sqrt(( 2)/( M ( gas )))`
`( 1//5)/( 1) = sqrt((2 )/( M ( gas)))`
or ` ( 1)/( 25) = ( 2)/( M ( gas))`
or M ( gas ) = ` 2 xx 25 = 50`


Discussion

No Comment Found