Question

On the roomanalysis worksheet, in cell g7, determine the total charges for the musica room by using a sumif function. use absolute references where appropriate. copy this formula through cell g11, if necessary.

Answer 1

The question focuses on calculating molecular mass in chemistry by using the average atomic masses of elements multiplied by their quantities in a molecule and summing these up for the total molecular mass.

Step-by-step explanation:

The question provides data from tables and visual diagrams to explain the process of calculating the molecular mass or formula mass of chemical compounds. It demonstrates how to determine the mass by multiplying the quantity of each element by its average atomic mass (amu) and adding up the subtotals to get the total mass of the molecule. This is essential for understanding the composition and reactions of substances in chemistry.

For example, the molecular mass of CHCl3 can be calculated by adding the subtotals of carbon (C), hydrogen (H), and chlorine (Cl), which are 12.01 amu, 1.008 amu, and 106.35 amu respectively, resulting in a molecular mass of 119.37 amu. Similarly, for C9H8O4, the subtotals of carbon (C), hydrogen (H), and oxygen (O) are 108.09 amu, 8.064 amu, and 64.00 amu, respectively, leading to a molecular mass of 180.15 amu.