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

the average atomic mass of chorine
`=[("fractional abundance of "^(35) Cl)("molar mass of "^(35)Cl)+("fractinal abundance of "^(37)Cl)("Molar mass of "^(37)Cl)]`
` =[{((75.77))/(100))(34.9689 u)}+{((24.23))/(100))(363.9659u)}]`
=26.4959+8.9568 ltbRgt =35.4527 u
`therefore` The average atomic mass of chlorine = 35.4527 u