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chemistrybytes.com/welcome/concepts/stoichiometry/calculating-formula-weight

FYI: Amu and Grams. While grams are typically used to calculate formula weight because they are more practice, did you know that the first unit used to denote atomic mass–although now arbitrary—was the atomic mass unit.

www.thoughtco.com/definition-of-formula-mass-605144

A related term you should know is relative formula mass (relative formula weight). This simply means the calculation is performed using relative atomic weight values for the elements, which are based on the natural isotopic ratio of elements found in Earth's atmosphere and crust.

www.chymist.com/molecular weight.pdf

A molecular weight of a substance is the sum of all the atomic weights of all the atoms in a molecule of a molecular substance. The terms formula weight and molecular weight are often used interchangeably, but formula weight includes simple or empirical formulas of compounds, as well as, molecular formulas. To calculate the formula weight or ...

www.wisc-online.com/.../gch7004/calculating-formula-weight-and-molecular-weig

Calculating Formula Weight and Molecular Weight By Debbie McClinton Dr. Miriam Douglass Dr. Martin McClinton. In this interactive object, learners calculate formula and molecular weights by working through five examples and two problems.

www.bbc.co.uk/bitesize/guides/zysk7ty/revision/3

Formula mass and mole calculations The relative formula mass of a compound is calculated by adding together the relative atomic mass values for all the atoms in its formula. Moles are units used ...

www.wikihow.com/Calculate-Mass-Percent

To calculate mass percent, start by identifying the mass of the chemical-in-question. Next, figure out the total mass of the compound by adding together the masses of all of the chemicals used to make that compound. Then, divide the mass of the chemical by the total mass of compound. Multiply the answer you get by 100 to calculate the percentage!