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JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank Chemical stoichiometry

  • question_answer
    The solution of sulphuric acid contains 80% by weight \[{{H}_{2}}S{{O}_{4}}\]. Specific gravity of this solution is 1.71. Its normality is about                                                 [CBSE 1991]

    A)                 18.0       

    B)                 27.9

    C)                 1.0         

    D)                 10.0

    Correct Answer: B

    Solution :

               \[N=\frac{10\times \text{sp}\text{. gr}\text{. of the solution}\times \text{wt}\text{.  }\!\!%\!\!\text{  of solute}\times \text{Mol}\text{. wt}\text{.}}{\text{Molecular wt}\text{. of solute}\times \text{Eq}\text{. wt}\text{.}}\]                                 \[N=\frac{10\times 1.71\times 80\times 98}{98\times 49}=27.9\]


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