A mole of any substance contains the same number of particles, bey they atoms, molecules, or formula units.
Both one mole of carbon and one mole of sodium contain Avogadro's number of atoms, which is approximately 6.02 x 10^23 atoms. This quantity is true for all elements or substances when considering one mole.
the mole, pair & dozen are all units which denote a particular number of objects.
Diamond has the highest refractive index among all known substances.
The common characteristic shared by all organic substances is that they contain carbon atoms bonded to hydrogen atoms.
Practically (exceptions exist) all known substances can be obtained in a pure fom.
they all dig
they all are made of atoms
they have the elements and they are in the same substances
To determine the mole fraction of a substance in a mixture, you divide the moles of the substance by the total moles of all substances in the mixture. This gives you a ratio that represents the proportion of that substance in the mixture.
Some, but not all, substances do so. Such substances are known as catalysts.
The substances which are all having uniform chemical composition through out are all known as homogeneous substances.
It may vary. You have to look up molar weights for all the substances involved in the mix or compound. Then calculate the percentage.