Find the molarity of a 15% (w/w) H2SO4 solution. (Density of the solution is 1.10 g/mL)
A
1.68M
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B
2.45M
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C
4.58M
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D
8.6M
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Solution
The correct option is A1.68M 15% (w/w) H2SO4⇒15gH2SO4 in 100 g of solution ⇒ 150 g H2SO4 in 1000 g solution Volumeofthesolution=Massdensity=10001.10=909mLMolarity=Number of moles of Solutevolume of solution in L ⇒150×100098×909=1.68M