KCl
What is the molar mass (to the nearest tenth of a gram/mole) of each of the following
39.1 g/m + 35.5 g/m = 74.6 g/mol
if you mean preceding, then yes
To find the molar mass of KCl, you need to add up the atomic masses of the elements potassium (K) and chlorine (Cl).
The atomic mass of potassium (K) is 39.1 g/mol, as you correctly mentioned. The atomic mass of chlorine (Cl) is 35.5 g/mol. Therefore, to find the molar mass of KCl, you simply add the atomic masses of K and Cl together:
Molar mass of KCl = 39.1 g/mol + 35.5 g/mol = 74.6 g/mol
So, the molar mass of KCl is 74.6 g/mol, rounded to the nearest tenth of a gram/mole.