Q:
      
      
         
            
The molecular mass of sulphuric acid is 98. If 49 g of the acid is dissolved in water to make one litre of solution, what will be the strength of the acid?
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: B) One normal         
         
Explanation: Normality is a way of expressing concentration of a solution and can be calculated by the formula-
Normality (N) = No. of gram equivalent of solute/ volume of solution (in litre)
Gram equivalent weight of H2 SO4 = Molecular weight/ No. of Hydrogen atom = 98/2 = 49 gm
No. of gram equivalent in 49 gm of H2 SO4 = 1
So, Normality in 1 litre of solution = 1/1 = 1 N
       
      
      
      
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