The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom or group of atoms in the formula by the formula weight and multiplying by When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula.
A common request on this site is to convert grams to moles. To complete this calculation, you have to know what substance you are trying to convert. The reason is that the molar mass of the substance affects the conversion. This site explains how to find molar mass. We use the most common isotopes. This is how to calculate molar mass average molecular weight , which is based on isotropically weighted averages. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search.
I'm working on chemistry and I'm not quite sure how to solve this question? I haven't worked with moles before and whenever I try to figure out how to do these types of question I only end up confusing myself more. I haven't any clue how to do this so a walkthrough on how to solve these types of problem would be nice. Just multiply:. Sign up to join this community. The best answers are voted up and rise to the top.
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