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anonymous
 one year ago
acetic acid 0.921% (w/w) 100grams. The acetic acid will be measured by weight. how much is used?
anonymous
 one year ago
acetic acid 0.921% (w/w) 100grams. The acetic acid will be measured by weight. how much is used?

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Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.0What does (w/w) mean?

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.0@aaronq come in here. So im guessing it means : \[\sf \frac{0.921 ~g~C_2H_3O_2}{100~g~comp}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i sent the actual question above. with 4 answers..

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2acetic acid 0.921% (w/w) 100 grams. means that there is 0.00921*100 g =0.921 g of acetic acid and 100 g  0.921 g = 99.079 g of solvent

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.0oh i see how it works now

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2from that picture posted, it's A and C, because of the units

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so its a and c? why?

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2because of the units, 0.921 g = 921 mg

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok. thank you so much.. both of you ..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Are you willing to help me understand other questions?

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2no problem guyses, idk if you're asking me, but if so, you should post in the chem section

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0im asking either of of you

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if not, would you really consider this chem?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0its actually pharmacy compounding math

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2pharmacy is based from chem and bio

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0are you willing to help me understand a few other questions ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok thank you i will post the next question

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if possible explanations please.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I am trying to get some of these done before work tomorrow

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0along with understanding them

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2so, v/v means volume by volume, it's pretty straight forward that in 100 mL of 50 % v/v glycerin solution there is 50 mL of glycerin.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what about the second question

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i should have just read that one. that was common sense but im old..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0is the answer to 17. 6.25ml?

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2sorry, i had to step away from the keyboard. yes, that's the answer. you basically just have to watch the units

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0its ok . i am trying to do this, which most has nothing to do with what i do at work. and thank you so so much

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0here is another one if you can help thank you

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i need to do all 3 questions? so what ever you can help with

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2b) is 400 mg 0.02*20 g =0.4 g = 400 mg

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0wow thank you.. at least i can see it now

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2for c) you add the whole masses and make a dilution \(2\%*20g=x\%*(20~g+30~g+30~g)\rightarrow x\%=0.5\%\)

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2lol sorry that sounds to weird, i meant "add all the masses" not "the whole.." lol

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2grams is a unit of mass

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you are a great help.. can you help with a few more? i dont want to over welcome my help

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2I would but i have to go do laundry and stuff. Hopefully someone else can come help ya, if you can't find help here, try the chem section.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok thank you so much
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