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How is mole related to (a) …

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How is mole related to (a) no of atoms or molecules (b) mass of substance

Posted by Janvi Sharma 6 years, 4 months ago

CBSE > Class 11 > Chemistry

2 answers

#Aditi~ Angel???? 6 years, 4 months ago

The mass of one mole of any atom/molecule is equal to its atomic molecular mass in grams. The molecular formula of water is H 2 O The atomic mass of H = 1 The atomic mass of O = 16 In a sense, the formula means H + H + O So... 1 + 1 + 16 = 18 Therefore, the mass of one mole of water = 18 Grams Thanks @diti?

#Aditi~ Angel???? 6 years, 4 months ago

Avogadro's number is a proportion that relates molar mass on an atomic scale to physical mass on a human scale. Avogadro's number is defined as the number of elementary particles (molecules, atoms, compounds, etc.) per mole of a substance. It is equal to 6.022×1023 mol-1 and is expressed as the symbol NA. Thanks @diti?

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