Questions: Question 3 Calculate the mass in grams of 2.80 moles of Ca. 112 g 80.2 g 42.0 g 150 g

Solution Steps

The molar mass of calcium (Ca) is 40.08 g/mol.

The formula to calculate the mass is: \[ \text{mass} = \text{moles} \times \text{molar mass} \] Given: \[ \text{moles} = 2.80 \, \text{moles} \] \[ \text{molar mass} = 40.08 \, \text{g/mol} \]

\[ \text{mass} = 2.80 \, \text{moles} \times 40.08 \, \text{g/mol} = 112.224 \, \text{g} \]

\[ \text{mass} = 112.2 \, \text{g} \]

Final Answer