From the equation, we know that for every 2 moles of aluminum consumed, 2 moles of aluminum chloride are produced.
This means that if 0.25 moles of Al react, then 0.25 moles of aluminum chloride are produced.
- The atomic mass of Al is 26.9815385 g/mol.
- The atomic mass of Cl is 35.45 g/mol.
So, the formula mass of aluminum chloride is:
- 26.9815385+3(35.45)=133.3315385 g/mol.
Thus, 0.25 moles have a mass of:
- (133.3315385)(0.25), which is about 33 g (to 2 sf)
