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Write the relation between number of …

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Write the relation between number of moles and atomic mass. (Ch-3 Atoms and molecules)

Posted by Sneha Singh 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 3 years, 10 months ago

The molar mass of a substance is the mass (in grams per mole) of 6.022 × 10 23 atoms, molecules, or formula units of that substance. In each case, the number of grams in 1 mol is the same as the number of atomic mass units that describe the atomic mass, the molecular mass, or the formula mass, respectively. A convenient amount unit for expressing very large numbers of atoms or molecules is the mole. Experimental measurements have determined the number of entities composing 1 mole of substance to be 6.022 × 1023, a quantity called Avogadro's number. The mass in grams of 1 mole of substance is its molar mass.

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