Which of the following sample does not represent molar mass of that substance ?

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4 grams of Helium

2 grams of Hydrogen

31 grams of Phosphrous

32 grams of Oxygen

answer is C.

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Detailed Solution

Molar mass = mass of one mole of substance expressed in grams ;One mole of phosphorous ( P4 ) = 124 g ;Molar mass of phosphorous ( P4 ) = 124 g ;

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