Question

1. chlorine (cl) has two isotopes. cl - 37 has an abundance of 23.9% with a mass of 36.9659 g while cl - 35 has an abundance of 76.1% with a mass of 34.9689 g. what is the average atomic mass of chlorine?

Explanation:

Step1: Convert abundancias a decimales

Cl - 35: $0.761$, Cl - 37: $0.239$

Step2: Calcular ponderación de masas

$(34.9689\times0.761)+(36.9659\times0.239)$

Step3: Realizar cálculos

$26.6113329 + 8.8348501=35.446183$

Answer:

$35.446183$ g