Question

determine the average atomic mass of lithium6 with a mass of 6.015 amu 7.5% and lithium7 with a mass of 7.016 amu 9.25%.

Answer 1

how do you get the average?

Answer 2

i dont know

Answer 3

if I asked you to average 4,5,6 and 7 assuming each occurs 25% of the time how would you do it?

Answer 4

hint: (4 + 5 + 6 + 7)/4 is the same as .25(4) + .25(5) + .25(6) + .25 (7)

Answer 5

in your question it should say 7.016 amu 92.5%