How do I change grams to moles.
you multiply by Avogadro's number.
It is 6.022 x 10^23
do u have an example problem?
ledane, ignore lyns's answer.
mols = grams/molar mass.
To change grams to moles, you need to use the concept of molar mass.
Step 1: Determine the molar mass of the substance for which you want to convert grams to moles. The molar mass is the mass of one mole of the substance. It is expressed in grams per mole (g/mol).
Step 2: Divide the given mass (in grams) by the molar mass (in g/mol) to convert grams to moles.
The formula to convert grams to moles is:
moles = grams / molar mass
For example, let's say you have 50 grams of a substance with a molar mass of 23 g/mol.
moles = 50 g / 23 g/mol
moles ≈ 2.17 mol
Therefore, 50 grams of the substance is approximately equal to 2.17 moles.
Remember, the molar mass can be found on the periodic table by adding up the atomic masses of all the atoms in the chemical formula of the substance.