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

  • question_answer
    Calculate the weight of sulphur present in \[1.5\] moles of hydrogen sulphide.

    A) \[48\,\,g\]                        

    B)        \[50\,\,g\]

    C) \[60\,\,g\]                      

    D)        \[70\,\,g\]

    Correct Answer: A

    Solution :

     \[1\] mole of \[{{H}_{2}}S\] contains \[1\]mole of sulphur \[1.5\] mole of \[{{H}_{2}}S\] contains \[1.5\] moles of sulphur \[=1.5\times 32=48\,\,g\] (since \[1\] mole of sulphur weighs\[32\,\,g\])


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