Question

Molarity of 20% of h2so4 by mass whose density is 1.02 g/cm3 is ?? 1)8.4M 2) 2.08M 3)7.28M 4) 1.7M *(EXPLAIN IN DETAIL I BEG EVERYONE I AM A LEARNER)*

Answer 1

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▪️Density of solution = 1.02 g/cc

▪️Let us 1000 g of sample

▪️Mass of H2SO4 present = 1000 x 20/100 = 200 g

▪️No of moles of H2SO4 = 200 / 98 = 2.04

▪️Volume of solution = 1000/1.02 = 980.4 mL

▪️=0.9804 litre

▪️Molarity = 2.04 / 0.9804 = 2.08 M

Option 2 is correct