Question

1. what is the molar mass of cacl₂?

options: 110.98 g/mol, 75.53 g/mol, 147.02 g/mol, 58.45 g/mol

Explanation:

Step1: Identify atomic masses

Calcium (Ca) atomic mass: $40.08\ \text{g/mol}$, Chlorine (Cl) atomic mass: $35.45\ \text{g/mol}$.

Step2: Calculate molar mass of $\text{CaCl}_2$

$\text{CaCl}_2$ has 1 Ca and 2 Cl. So molar mass = $40.08 + 2\times35.45 = 40.08 + 70.9 = 110.98\ \text{g/mol}$.

Answer:

110.98 g/mol (the option with 110.98 g/mol)