EASYMCQ SINGLEJEE Advanced ChemistryInorganic ChemistryMole conceptLaw of chemical combination, atomic & molecular mass, mole concept, calculations
Cortisone is a molecular substance containing 21 atoms of carbon per molecule. The weight percentage of carbon in cortisone is 69.98%. What is the molecular weight of cortisone?
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B.[object Object]
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D.[object Object]✓ Correct
Explanation
This question uses atomic structure & atomic mass. Relate mass, moles and number of particles using the mole concept and basic stoichiometry; doing the algebra gives the value listed in option D.
Atomic structure & atomic mass
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