what is the mass of 3.50mol of FeCl2
could you show me step by step how to do this?
g(mass) = moles x molar mass.
g = 3.50 moles x molar mass FeCl2.
Look up FeCl2. Fe is about 56 and 2*Cl is about 71.
nevermind i figured out how to do this.
Sure! To find the mass of a compound, you need to know the molar mass of the compound.
Here are the steps to find the mass of 3.50 mol of FeCl2:
1. Determine the molar mass of FeCl2:
- Find the atomic mass of each element in the compound.
- The atomic mass of Iron (Fe) is 55.845 g/mol, and the atomic mass of Chlorine (Cl) is 35.453 g/mol.
- Multiply the atomic mass of Fe by the subscript (1) and the atomic mass of Cl by the subscript (2).
- Add these masses together to get the molar mass of FeCl2.
- In this case, the molar mass of FeCl2 is (55.845 g/mol) + (35.453 g/mol) × 2 = 126.75 g/mol.
2. Multiply the number of moles (3.50 mol) by the molar mass (126.75 g/mol) to find the mass:
- Multiply 3.50 mol by 126.75 g/mol.
- The unit "mol" cancels out, leaving you with the unit "grams (g)".
- Calculate 3.50 mol × 126.75 g/mol.
- The mass of 3.50 mol of FeCl2 is equal to 443.6 g.
Therefore, the mass of 3.50 mol of FeCl2 is 443.6 grams.