Molar mass of co5/4/2023 ![]() Remember, molar mass is an average mass per mole.Īs another example, find the mass of one mole of oxygen gas. This is because the average isotope abundance of sodium in the Earth’s crust includes other isotopes besides sodium-22. Now, you know the atomic number of sodium is 11, so you may wonder why the molar mass is not exactly 22 (11 protons and 11 neutrons). The relative atomic mass is the same as the molar mass (except molar mass is in g/mol). Do this by looking up sodium (Na) on the periodic table. If there is no subscript, it’s the same as multiplying by ‘1’.Įxample #1: Find the Molar Mass of an Elementįor example, find the mass of one mole of sodium. For each element, multiply the atomic mass by the subscript following its symbol.
0 Comments
Leave a Reply. |