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OpenStudy (anonymous):
use the following information t o calculate the average atomic mass of an element. Two isotopes are known: Isotope A has a mass of 35.01 amu and isotope B has a mass of 37.01 amu. The relative abundance are 75.4% and 24.6% respectively. Which element do you think it is?
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OpenStudy (anonymous):
Average is 36.01 amu.
OpenStudy (anonymous):
how?
OpenStudy (anonymous):
Add mass of A and mass of B. Then divide by 2.
OpenStudy (anonymous):
The element is chlorine
OpenStudy (anonymous):
okay thank you that's what i got too!
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OpenStudy (anonymous):
Yeah since the lower mass is more abundant then the number will be smaller like 36.45. The actual amu of chlirine
OpenStudy (anonymous):
yup that's what i got.
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