Question

State the formula that links moles, mass, and RFM (Relative Formula Mass). Mention units.

A) Moles = Mass / RFM (grams per mole)
B) Mass = Moles * RFM (grams)
C) RFM = Moles * Mass (grams per mole)
D) RFM = Mass / Moles (grams)

Answer 1

The formula that links moles, mass, and RFM is Moles = Mass / RFM (grams per mole).

Step-by-step explanation:

The formula that links moles, mass, and RFM (Relative Formula Mass) is Moles = Mass / RFM (grams per mole).

For example, if you have a substance with a mass of 20 grams and a RFM of 5 grams per mole, you can calculate the number of moles by dividing the mass by the RFM: Moles = 20 g / 5 g/mol = 4 moles.

It's important to note that the mass should be in grams and the RFM should be in grams per mole when using this formula.