Title BRDC CHE 08 PROB MOLE(07 Apr 2016).ppt ✅

CHEMISTRY
Let us learn about … Problems on mole concept
Mole concept and Molar masses: One mole is the amount of a substance that contains as many particles or entities as there are atoms in exactly 12g(or 0.012kg) of the 12C isotope. 1 mole of a substance always contains 6 × 1023 particles i.e., Atoms and molecules
Mole concept and Molar masses: The number of entities in 1 mole is called ‘Avogadro number’ The mass of one mole of a substance expressed in grams is called as its molar mass.