1.

2.5 litre of 1M NaOH solution is mixed with a 3.0 litres of 0.5 M NaOH solution. The molarity of the resulting solution is :

Answer»

0.80 M
1.0 M
0.73 M
0.50 M.

Solution :`M_(1)V_(1)+M_(2)V_(2)=M_(3)(V_(1)+V_(2))`
`M_(3)=(M_(1)V_(1)+M_(2)V_(2))/((V_(1)+V_(2)))`
`M_(3)=(1xx2.5+0.5xx3)/(2.5+3)`
`(4.0)/(5.5)=0.73M`


Discussion

No Comment Found

Related InterviewSolutions