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9th Class Science Atoms and Molecules Question Bank Atoms and Molecules

  • question_answer
    How many grams of sodium oxalate are to be weighed to get 0.1 mole of sodium oxalate\[(N{{a}_{2}}{{C}_{2}}{{O}_{4}})\]?

    A)  \[13.4\,\,g\]        

    B)         \[1.34\,\,g\]

    C)  \[134\,\,g\]       

    D)         \[0.134\,\,g\]

    Correct Answer: A

    Solution :

     \[1\] mole of sodium oxalate\[=134\,\,g\] Weight of \[0.1\] mole of\[N{{a}_{2}}{{C}_{2}}{{O}_{4}}\]\[=0.1\times 134=13.4\,\,g\]


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