Dr. Bob222,

Question

Calculate the moles of C2H6 in 8.60×1023 molecules of C2H6.
I did what you said, I got 8.60*10^23*(1mole/6.02*10^23) = 1.43*10^46??? This is not the answer.. am I doing something wrong?

Answer 1

yes. bAsic math.

x^a * x^b= x^ (a+b)

x^a/x^b= x^(a-b)

you added exponents. The answer is 1.43

Answer 2

the calculator said it.. I didn't do anything but plug it in.. sorry, thanks for help