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Define mole concept

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Define mole concept

Posted by Kritika Gupta 5 years, 3 months ago

CBSE > Class 11 > Chemistry

2 answers

Yogita Ingle 5 years, 3 months ago

The mole concept is a convenient method of expressing the amount of a substance. Any measurement can be broken down into two parts – the numerical magnitude and the units that the magnitude is expressed in. For example, when the mass of a ball is measured to be 2 kilograms, the magnitude is ‘2’ and the unit is ‘kilogram’.

Mansi Vekariya 5 years, 3 months ago

Mole Concept n = N/NA ...Molar mass of a Substance = (Mass of the Substance in grams)/(Number of Moles) ...Number of Moles = (Mass of the Sample)/(Molar Mass) ...Number of Atoms or Molecules = (Number of Moles)*(6.022*1023) ...1 amu = (1gram)/(6.022*1023) = 1.66*10-24 grams.

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