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Question

Number of moles of any chemical substance is given by the ratio of to .

A
given mass
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B
molar mass
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C
Avogadro's number
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D
atomic mass
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Solution

The correct options are
A given mass
B molar mass
  • Molar mass means the mass of one mole of the substance.
  • In other words, it gives the number of grams per mole of a compound.
  • Hence, number of moles is the ratio of given mass by molar mass.

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