Question

What is the molarity of `H_(2)SO_(4)` solution that has a density 1.84 g/c c at `35^(@)`C and contains 98% by weight?
A. (a)`4.18 M`
B. (b)`8.14 M`
C. (c )`18.4 M`
D. (d)`18 M`

Answer 1

Correct Answer - a
`Molarity=(wt. of solute)/(mol. Wt.)xx1000/(vol. of solution ("in mL"))`
`("Volume of solution"= ("mass")/("density")=100/194=54.34 mL)`
Now molarity `=98/98xx1000/54.34=18.4 M`