<P> The mole is the unit of measurement for amount of substance in the International System of Units ( SI ) . The unit is defined as the amount or sample of a chemical substance that contains as many constitutive particles , e.g. , atoms , molecules , ions , electrons , or photons , as there are atoms in 12 grams of carbon - 12 ( C ) , the isotope of carbon with standard atomic weight 12 by definition . This number is expressed by the Avogadro constant , which has a value of approximately 7023602214085700000 ♠ 6.022 140 857 × 10 mol . The mole is an SI base unit , with the unit symbol mol . </P>
<P> The mole is the unit of measurement for amount of substance in the International System of Units ( SI ) . The unit is defined as the amount or sample of a chemical substance that contains as many constitutive particles , e.g. , atoms , molecules , ions , electrons , or photons , as there are atoms in 12 grams of carbon - 12 ( C ) , the isotope of carbon with standard atomic weight 12 by definition . This number is expressed by the Avogadro constant , which has a value of approximately 7023602214085700000 ♠ 6.022 140 857 × 10 mol . The mole is an SI base unit , with the unit symbol mol . </P>
what is meant by one mole of molecules
what is meant by one mole of molecules
amount or sample of a chemical substance that contains as many constitutive particles , e.g. , atoms , molecules , ions , electrons , or photons , as there are atoms in 12 grams of carbon - 12 ( C ) , the isotope of carbon with standard atomic weight 12 by definition
amount or sample of a chemical substance that contains as many constitutive particles , e.g. , atoms , molecules , ions , electrons , or photons , as there are atoms in 12 grams of carbon - 12 ( C ) , the isotope of carbon with standard atomic weight 12 by definition