Hey i would like some help becuase I just really got into metal 1 year ago and I would like some help.I don't want to find some metal heads and act retarded in front of them or act like a poserAnd what to watch out for thx (:
What is the formula of the metal oxide. MO? M2O? MO2? You need to know in order to solve the problem. I will show you how to solve it, assuming it is MO (if it is not, you will need to account for that). If we pick an arbitrary number, like 100g, 67.2 g is metal and 32.8 g is oxygen. Since the atomic weight of oxygen is 16.0 g, 32.8 g O / 16.0 g/mol = 2.05 moles of oxygen. This is the part where the stoichiometry is important. Depending on the formula, this would determine the number of moles of metal. MO gives you 2.05 moles M (1:1 M:O), M2O gives you 4.10 (2:1 M:O), MO2 gives you 1.025 (1:2 M:O), etc. 67.2 g M / # moles M = MW of M Then use the atomic mass values on the periodic table to figure out what metal it is. Good luck.
