# How do you find molar mass?

you need to find the relative atomic mass. without that, you can't find that information unless given to you. basically, molar mass is a mole. a huge unit, but if you have that one "mole" of hydrogen atoms, you will have a equivalent of 1 gram

The molar mass is the sum of the atomic weights of elements contained in the molecule, expressed in g/mole.

### How to find the percent of water in a hydrate?

1. Find the molar mass of the hydrate. Find the molar mass of the water molecules (18.01528 x # water molecules) and of the anhydrate; add the values together to find the molar mass of the hydrate. Molar Mass Water + Molar Mass Anhydrate = Molar Mass Hydrate 2. Find the percent of water in hydrate. Divide the molar mass of water by the molar mass of hydrate; multiply by 100%. - Mass water Mass…

### Molar mass of a polyatomic ion?

To find the molar mass of a polyatomic ion, you simply find the molar mass of every element that makes up the ion and add them together. Do not forget to multiply the molar mass if there are multiple atoms. For Example: Find the molar mass of NO3 NO3 is made up of Nitrogen and Oxygen Nitrogen has a molar mass of 14.0067 and Oxygen has a molar mass of 15.9994. There are three atoms…

### What is the theoretical percentage of water of hydration in cacl2-2h20?

1. Find the molar mass of the hydrate (Calcium Chloride Dihydrate). Find the molar mass of water and the anhydrate (anhydrate + water = hydrate); add the molar mass values of each to find the molar mass of the hydrate. Molar Mass CaCl2: 110.98g + Molar Mass H2O: 36.04g* Molar Mass CaCl2 * 2H2O: 147.01g Finding Molar Mass # atoms element A * atomic mass element A = Mass A # atoms element B *…