Calculate the atomic mass (average) of chlorine using the following data:
`{:(,,"% natural abundance",,"Molar mass"),(.^(35)Cl,,75.77,,34.9689),(.^(37)Cl,,24.23,,36.9659):}`

Explanation

To calculate the average atomic mass of chlorine using the provided data, we will follow these steps:

### Step 1: Understand the Data
We have two isotopes of chlorine:
- \(^{35}Cl\) with a natural abundance of 75.77% and a molar mass of 34.9689 g/mol.
- \(^{37}Cl\) with a natural abundance of 24.23% and a molar mass of 36.9659 g/mol.

### Step 2: Convert Percentages to Fractions
...