CBSE - IX - Chemistry - Atoms and Molecules
what is mole concept? how do we use it
Mole is the unit to measure amount of substance. By number it is equal to 6.02X1023, as this is a huge and uncountable number we convert it to mass which is easily weighed using a balance. If the chemical is in form of atoms 1 mole is equal to atomic mass in grams and if the chemical is molecules than 1 mole is molecular mass in grams.
1 mole of carbon is equal to 12g by weight and will have 6.02 x1023 atoms and in 1 mole of water number of molecules is6.02 x1023 and weight is 18g.
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