Chemistry 10-26-09 Average Atomic Mass
CHEMISTRY: Awwww….aren’t they cute! So what do you think the average atomic mass puppies is?
Here’s the lecture from Monday on calculating the average atomic mass of isotopes. Isotopes, not puppies.

CHEMISTRY: Awwww….aren’t they cute! So what do you think the average atomic mass puppies is?
Here’s the lecture from Monday on calculating the average atomic mass of isotopes. Isotopes, not puppies.
October 27th, 2009 at 8:29 AM
I am a little confused about how you find the relative atomic mass.
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October 27th, 2009 at 9:44 AM
why is the average atomic mass weighted?
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October 27th, 2009 at 9:45 AM
What does mole equal?
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Emily Lunati Reply:
October 28th, 2009 at 9:01 AM
1 mol equals 6.022 X 10^23 atoms OR it equals the average atomic mass of the element given.
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October 27th, 2009 at 9:46 AM
it equals 6.022*10^23
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October 27th, 2009 at 4:00 PM
on the homework tonight.it says only do b,c, and e on the ones with parts! does that mean for all the problems or just a certain one?
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October 27th, 2009 at 4:53 PM
how many carbon isotopes are there?
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Jessica Keel C2 Reply:
October 27th, 2009 at 8:03 PM
there are three naturally occurring carbon isotopes
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#56 Ryne L. C6 Reply:
October 28th, 2009 at 9:12 PM
it is Carbon 12,Carbon 13,and Carbon 14
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October 27th, 2009 at 7:03 PM
What was the name of the person that invented average atomic mass again?
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October 27th, 2009 at 7:04 PM
Who was James Chadwick?
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October 27th, 2009 at 7:50 PM
jessica- yes it means for all of them.
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October 27th, 2009 at 9:18 PM
Heather: James Chadwick was the first person to dicover the nucleus in an atom!!!
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October 28th, 2009 at 3:15 PM
do we need to know all of the names of the people for the test?
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October 28th, 2009 at 5:30 PM
katie, if its in our notes you need to know it. she wouldn’t just give us names for nothing. so the answer is yes.
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October 28th, 2009 at 6:59 PM
was rutherford the scientist that discovered the nucleus?
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October 28th, 2009 at 7:14 PM
i do believe that Rutherford discovered the nucleus with his gold foil experiment
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October 28th, 2009 at 8:04 PM
who discovered that 1 mol is 6.022×10^23?
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October 29th, 2009 at 6:22 PM
who was the scientist that discovered an atom?
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