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ICSE Class 10 Answered

Calculate the minority of 90% (wt/v) H2SO4 having density 1.98g/mol

Asked by Gurdev71 | 24 Jun, 2020, 12:41: 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 | 25 Jun, 2020, 12:06: PM
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