CBSE Class 11-science Answered
Calculate molarity of 90% (W/V) H2SO4 having density 1.98g/ml.
Asked by arunavamitra50 | 09 May, 2018, 06:39: PM
Expert Answer
Mass of solute in 100ml of solution = 90 g of H2SO4
Moles = Mass of solute in 100ml in solution = 90 = 0.9183
Molar mass 98
Volume = mass X density
Wt of 100ml of solution = 100 X 1.8 = 180 g
Solution = solvent + solute
180= x + 90
x = 180 -90 = 90 g
Molarity = No. of moles of solute = 0.9183 = 0.0102 X 1000 = 10.2 M
A volume of solution 90
Answered by Ramandeep | 10 May, 2018, 05:43: PM
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