In chemistry, .mole.is an essential tool for the chemical calculations. It is a basic S.I. unit adopted by the 14^(th) general conference on weights and measurements in 1971. A mole contains as many elementary particles as the number of atoms present in 12 g of C. 1 mole of a gas at STP occupies 22.4 litre volume. Molar volume of solids and liquids is not definite. Molar mass of a substance is also called gram atomic mass or gram molar mass. The virtual meaning of mole is plenty, heap or the collection of large numbers. 1 mole of a substance contains 6.023xx10^(23) elementary particles like atom or molecule. Atomic mass unit (amu) is the unit of atomic mass, e.g., atomic mass of single carbon is 12 amu. x L N_(2) gas at STP contains 3xx10^(22) molecules. The number of molecules in x L ozone at STP will be

In chemistry, .mole.is an essential tool for the chemical calculations

1.	In chemistry, .mole.is an essential tool for the chemical calculations. It is a basic S.I. unit adopted by the 14^(th) general conference on weights and measurements in 1971. A mole contains as many elementary particles as the number of atoms present in 12 g of C. 1 mole of a gas at STP occupies 22.4 litre volume. Molar volume of solids and liquids is not definite. Molar mass of a substance is also called gram atomic mass or gram molar mass. The virtual meaning of mole is plenty, heap or the collection of large numbers. 1 mole of a substance contains 6.023xx10^(23) elementary particles like atom or molecule. Atomic mass unit (amu) is the unit of atomic mass, e.g., atomic mass of single carbon is 12 amu. x L N_(2) gas at STP contains 3xx10^(22) molecules. The number of molecules in x L ozone at STP will be
Answer» `3XX10^(22)` `4xx10^(23)` `6.02xx10^(23)` `3xx10^(2)` Solution :`ValphanalphaN` `THEREFORE` same VOLUME implies same MOLECULES