1. Find the molar mass of CaCl₂:
* Ca: 40.08 g/mol
* Cl: 35.45 g/mol (and we have two chlorine atoms)
* Total molar mass: 40.08 g/mol + (35.45 g/mol * 2) = 110.98 g/mol
2. Use the formula: mass = moles * molar mass
* mass: unknown (what we're solving for)
* moles: 0.89 mol
* molar mass: 110.98 g/mol
Calculation:
mass = 0.89 mol * 110.98 g/mol = 98.87 g
Therefore, the mass of 0.89 mol of CaCl₂ is approximately 98.87 grams.
