Gram Molecular Mass


 
 
Concept Explanation
 

Gram Molecular Mass

Gram Molecular Mass: The molecular mass of a substance expressed in grams is called the gram molecular mass of the substance. To find the gram molecular mass or molar mass we keep the numerical value same but change the units from ‘u’ to ‘g’.

How to Find Out Gram Atomic Mass :

  • Use  the molecular formula to calculate mass.
  • Look up the relative atomic mass of each element in the formula.
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    Sample Questions
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    Question : 1

    Which of the following statement / statements are correct :

    (a) The molecular mass of a substance expressed in grams is called the gram molecular mass of the substance.

    (b) To find the gram molecular mass or molar mass we keep the numerical value same but change the units from ‘u’ to ‘g’.

    (c) Mass of O is 8.

    Right Option : C
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    Question : 2

    Which of the following is the gram molecular mass of N2 ?

    Right Option : C
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    Explanation
    Question : 3

    Which of the following are correct :

    (a) The molecular mass of a substance expressed in grams is called the gram molecular mass of the substance.

    (b) To find gram molecular mass we need to use  the molecular formula to calculate mass.

    Right Option : C
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    Explanation
     
     


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