Question

6.CalculatetheformulaunitmassofCaCl2(calciumchloride).
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Answer 1

Answer:

• Atomic mass of $\tt\red{Ca}$ = 40

• Atomic mass of $\tt\blue{Cl}$ = 35.5
• Atomic mass of $\blue{Cl}_{2}$ = 35.5 × 2
• Atomic mass of $\blue{Cl}_{2}$ = 71

The formula unit mass of $\orange{Ca}\orange{Cl}_{2}$

• 40 + 71
• 111 g