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Answer on Other Chemistry Question for joseph milimo

Question #11992
what are the best formulas i should use when solving questions on the mole concept?
Expert's answer
One mole of any substance contains a fixed number (6.022 × 1023) of any type of particles (atoms or molecules or ions) and has a mass equal to the atomic or molecular weight, in grams. Thus it is correct to refer to a mole of helium, a mole of electrons, or a mole of Na+, meaning respectively Avogadro’s number of atoms, electrons or ions.
Number of moles = Weight (grams)/Weight of one mole (g/mole) = Weight/Atomic or molecular weight.

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