Chemistry
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OpenStudy (anonymous):
How to find number of moles in NaOCl
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OpenStudy (anonymous):
number of moles is a measure of quantity like grams. How much NaOCl you've got to convert?
OpenStudy (anonymous):
i have to convert .21 g
OpenStudy (anonymous):
1mole = molecular weight expressed in grams
= sum of atomic weights of each individual atom in one molecule
OpenStudy (anonymous):
i have an extremely low value as an result
OpenStudy (anonymous):
atomic wt. of Na =
at. wt. of O =
at. wt. of Cl =
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OpenStudy (anonymous):
it will be pretty low
OpenStudy (anonymous):
i got
.009134 Na
.0131 O
.00592 Cl
is this correct?
OpenStudy (anonymous):
wait
OpenStudy (anonymous):
what!
no
OpenStudy (anonymous):
just the numbers from the table..
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OpenStudy (anonymous):
sorries
OpenStudy (anonymous):
Na 22.98989
Cl 35.4527
O 15.9994
OpenStudy (anonymous):
good.
add em up
OpenStudy (anonymous):
you can round em to the closest decimal
OpenStudy (anonymous):
23+35.5+16=
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OpenStudy (anonymous):
74.44
OpenStudy (anonymous):
good. now, by definition,
74.44g ---> 1mole
0.21g -----> 0.21/74.5 = ___________ moles
OpenStudy (anonymous):
kapeesh?
OpenStudy (anonymous):
ahh
ty so much
OpenStudy (anonymous):
yep. yw
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OpenStudy (anonymous):
so few ppl say that now
"kapeesh"
OpenStudy (anonymous):
"people forgot" lol
OpenStudy (anonymous):
fun to hear it actually ^^
OpenStudy (anonymous):
so, did you get the answer as 0.002819 moles?
OpenStudy (anonymous):
actually u were faster than me but yep
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OpenStudy (anonymous):
ty
OpenStudy (anonymous):
alrighty. peace out. gotta sleep. X-)
OpenStudy (anonymous):
wait
OpenStudy (anonymous):
ya ok :)
OpenStudy (anonymous):
gn