Final answer:
To calculate the molecular mass of CHCl3, each element's quantity is multiplied by its average atomic mass, and the products are summed, giving a molecular mass of 119.37 amu.
Step-by-step explanation:
The student is asking about how to calculate the molecular mass of a compound using a table that lists the elements, their quantities, and average atomic masses. To find the molecular mass of CHCl3, each element's quantity is multiplied by its average atomic mass (amu), and these products are summed.
For example, with one Carbon (C), one Hydrogen (H), and three Chlorine (Cl) atoms, the calculation would be (C: 1 × 12.01 amu) + (H: 1 × 1.008 amu) + (Cl: 3 × 35.45 amu), resulting in 12.01 amu + 1.008 amu + 106.35 amu, which equals 119.37 amu. Hence, the molecular mass of CHCl3 is 119.37 amu to two decimal places.