Question

Concentrated h2so4 is 98% weight and has density 1.84 g cm^-3. What volume of concentrated acid is required to make 5 litre of 0.50M h2so4 solution .

Answer 1

$\mathfrak{\huge{\green{\underline{\underline{AnswEr :}}}}}$

Molar mass of sulphuric acid = 98

500 ml of 0.2000 M sulphuric acid= 0.1000 moles = 4.9 g

Since the solution is 96% of sulphuric acid = hence 1 ml will contain 0.96*1.84g = 1 .7664 g

Hence volume of solution needed = 4.9 ÷ 1.7664 = $\boxed{\red{2.77ml}}$

Answer 2

Molar mass of sulphuric acid = 98

500 ml of 0.2000 M sulphuric acid= 0.1000 moles = 4.9 g

Since the solution is 96% of sulphuric acid = hence 1 ml will contain 0.96*1.84g = 1 .7664 g

Hence volume of solution needed = 4.9 ÷ 1.7664 = 2.77ml