25 mL 3M `HNO_(3)` and 75 mL 4 M `HNO_(3)` solutions are mixed. Then the molarity of the resulting solution is .......... M.

Options

A. 3.5 M
B. 3.75 M
C. 3 M
D. 4.5M

Answer

B, C

Explanation

Molarity of mixture,
`M=(M_(1)V_(1)+M_(2)V_(2))/(V_(1)+V_(2))=(3xx25+4xx75)/(25+75)`
`= (375)/(100)= 3.75`