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

  • question_answer
    Calculate the weight in grams present in \[0.7\] moles of sodium.

    A) \[16.1\,\,g\]         

    B) \[16.2\,\,g\]

    C) \[16.3\,\,g\]       

    D)        \[0.161\,\,g\]

    Correct Answer: A

    Solution :

     \[1\] mole of\[Na=23\,\,g\] \[0.7\] mole of \[Na=23\times 0.7=16.1\,\,g\]


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