Chemistry
8 Online
OpenStudy (vera_ewing):
How many carbon atoms make up a 5.85 g piece of graphite?
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OpenStudy (vera_ewing):
@aaronq stuck on this one. can you please help?
OpenStudy (aaronq):
First find moles, \(moles=\dfrac{mass}{Molar~mass}\)
then find atoms, \(moles=\dfrac{atoms}{Avogadro's~number}\)
OpenStudy (ashley1nonly):
5.85g graphite 1 mole 6.022 x 10^23
----------- x ----------- x ------------------ = answer
1 molar mass 1 mole
which is basically what aaronq said
OpenStudy (vera_ewing):
@Ashley1nOnly so i'm right?
OpenStudy (ashley1nonly):
what your answer
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OpenStudy (vera_ewing):
2.93
OpenStudy (ashley1nonly):
you have to find the molar mass of graphite and then plug that in
OpenStudy (ashley1nonly):
let me solve
OpenStudy (vera_ewing):
ok
OpenStudy (ashley1nonly):
did you use 12.01 for you molar mass
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OpenStudy (vera_ewing):
yes
OpenStudy (ashley1nonly):
any specific significant figures
OpenStudy (vera_ewing):
i'm not sure
OpenStudy (ashley1nonly):
if not then
2.93
TRUST IN YOUR WORK!!!!!
OpenStudy (ashley1nonly):
X10^23
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OpenStudy (ashley1nonly):
2.93X10^23
OpenStudy (vera_ewing):
are you sure?
OpenStudy (ashley1nonly):
about which part
OpenStudy (vera_ewing):
the answer. i can't get this question wrong
OpenStudy (ashley1nonly):
oh gosh i dont want you to be wrong so dont take it I dint like that much fait bestowed upon me
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OpenStudy (ashley1nonly):
faith
OpenStudy (vera_ewing):
ok i got it right! :) can you help me with some more? please?
OpenStudy (vera_ewing):
@Ashley1nOnly
OpenStudy (ashley1nonly):
you have to start another question
OpenStudy (vera_ewing):
ok