1. Find the molar mass of CaCl₂:
* Calcium (Ca) has a molar mass of 40.08 g/mol
* Chlorine (Cl) has a molar mass of 35.45 g/mol
* Since there are two chlorine atoms in CaCl₂, the total molar mass of Cl is 2 * 35.45 g/mol = 70.90 g/mol
* The molar mass of CaCl₂ is 40.08 g/mol + 70.90 g/mol = 110.98 g/mol
2. Use the molar mass to convert moles to grams:
* mass = moles * molar mass
* mass = 0.89 mol * 110.98 g/mol
* mass ≈ 98.7 g
Therefore, the mass of 0.89 mol CaCl₂ is approximately 98.7 grams.
