I need help finding the molar mass of anhydrous salt.
There are many salts in chemistry. I assume you mean table salt. That is NaCl. How accurate should the number be? It is about 58.5. It is 58.4425 to four significant figures.
No, we are using copper sulfate pentahydrate. We are making the hydrate and anhydrate.
CuSO4.5H2O molar mass = 249.686
CuSO4 molar mass = 159.610
To find the molar mass of an anhydrous salt, you will need the chemical formula of the salt. The chemical formula tells you the types and numbers of atoms present in the compound. Here's how you can calculate the molar mass step by step:
1. Identify the chemical formula of the anhydrous salt. For example, let's say the salt is sodium chloride (NaCl).
2. Determine the atomic masses of each element present in the formula. You can find the atomic masses of elements on the periodic table. The atomic mass of sodium (Na) is 22.99 g/mol, and the atomic mass of chlorine (Cl) is 35.45 g/mol.
3. Count the number of atoms of each element in the formula. In the case of sodium chloride, there is one sodium atom and one chlorine atom.
4. Multiply the atomic mass of each element by the number of atoms of that element. For sodium chloride, you would multiply the atomic mass of sodium (22.99 g/mol) by 1 and the atomic mass of chlorine (35.45 g/mol) by 1.
Sodium: 22.99 g/mol × 1 = 22.99 g/mol
Chlorine: 35.45 g/mol × 1 = 35.45 g/mol
5. Sum up the masses obtained for each element. In this case:
Molar mass of sodium chloride = 22.99 g/mol + 35.45 g/mol = 58.44 g/mol
Therefore, the molar mass of anhydrous sodium chloride (NaCl) is 58.44 g/mol.
Note: If the anhydrous salt has any subscripts or coefficients in the formula, make sure to multiply the atomic mass of the element by that number. If there are multiple elements present, calculate the molar mass of each element separately and then sum them up.