Homework Help: Chemestry

Posted by Zanele on Saturday, February 16, 2013 at 1:55pm.

What is the relative atomic mass of naturally occuring copper to four decimal places when you are given 69,09% of copper-63 with a relative atomic mass of 62,9298 with 30,91% of copper-65, with a relative atomic mass of 64,9278?

Chemistry - Zanele, Saturday, February 16, 2013 at 2:02pm
I need your help guyz plz!
Chemestry - DrBob222, Saturday, February 16, 2013 at 3:39pm
0.6906(mass) + 0.3091(mass) = avg mass.

Answer this Question

Related Questions

chemistry - The element copper has naturally occuring isotopes with mass numbers...
chemistry - Copper has two naturally occurring isotopes. Cu-63 has a mass of 62....
Chemistry - Naturally occurring copper contains a mixture of 69.09% copper-63 (...
general chemistry - naturally occuring chlorine is composed of 35CL with atomic ...
chem - copper has two naturally occurring isotopes. Cu-63 has a mass of 62.939 ...
Chem - Naturally occurring cobalt consists of only one isotope, cobalt59, whose ...
PLEASE HELP ME! CHEMISTRY - Naturally occurring cobalt consists of only one ...
chemistry - Naturally occurring cobalt consists of only one isotope Co59 whose ...
chemistry - The element rhenium (Re) has two naturally occurring isotopes, 185Re...
chemistry - Naturally occuring boron is 80.20% boron-11 and 19.80% of some other...

For Further Reading

First Name:
School Subject:
Answer: