How many moles are in 1.25 g of calcium chloride?

Question

Quizplus · Accepted Answer

To find the number of moles in 1.25 g of calcium chloride (CaCl2), first calculate the molar mass of CaCl2. Calcium (Ca) has a molar mass of approximately 40.08 g/mol, and chlorine (Cl) has a molar mass of approximately 35.45 g/mol. Therefore, the molar mass of CaCl2 is 40.08 g/mol + 2(35.45 g/mol) = 110.98 g/mol. Then, use the formula: moles = mass (g) / molar mass (g/mol), which gives moles = 1.25 g / 110.98 g/mol ≈ 1.13 x 10^-2 moles.

How Many Moles Are in 1