Asked by Jake

Naturally occuring chlorine gas has 3 isotopes
35cl-35cl, 35cl-37cl , 37cl-37cl

a) mass of one molecule in terms of amu.
b) mass of one molecule in terms of grams.
c) mass of one mole in terms of grams.
d) Naturally occuring Cl has 75% 35cl and 25% 37cl, calculate the mass of one mole of cl(small 2) gas.

--I didn't really understood these as i am in prep chem and i guess my teacher is too stupid to understand that. He gave us this on first pop quiz when our first chapter was about conversions and basic stuff. Please help or get me started on this at least.
Answered by DrBob222
I read your question when you posted earlier and I don't uhderstand anything about 35cl-35cl, 35cl-37cl, 37cl-37cl. If you can explain what that is perhaps someone can help.
Answered by Patrick
d,Atomic mass= fraction of the isotope X mass of the isotope.
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