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

  • question_answer
    What quantity of ammonium sulphate is necessary for the production of \[N{{H}_{3}}\]gas sufficient to neutralize a solution containing 292 g of \[HCl\]? [HCl=36.5; \[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\]=132; \[N{{H}_{3}}\]=17]                                        [CPMT 1992]

    A)                 272 g     

    B)                 403 g     

    C)                 528 g     

    D)                 1056 g

    Correct Answer: C

    Solution :

               \[\underset{132}{\mathop{{{(N{{H}_{4}})}_{2}}S{{O}_{4}}}}\,\equiv 2N{{H}_{3}}\equiv \underset{2(36.5)=73\,gm}{\mathop{2HCl}}\,\]                    \[73\,g\,HCl\equiv 132\,g{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\]                                 \[292\,g\,HCl=528\,g{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\]


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