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how many molecules of glucose are in a 2.0 mL of a 1.02 mM solution of glucose
 10 months ago
 10 months ago
how many molecules of glucose are in a 2.0 mL of a 1.02 mM solution of glucose
 10 months ago
 10 months ago

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aaronqBest ResponseYou've already chosen the best response.0
find the amount of moles using the formula for molarity: Molarity = moles/Liters of solution then multiply the number of moles by avogadros number
 10 months ago

aaronqBest ResponseYou've already chosen the best response.0
ps. convert to mM to M. 1 mM = 0.001 M
 10 months ago

amandax014Best ResponseYou've already chosen the best response.0
so calculate the mass C6H12O6? then divide that by 1.02?
 10 months ago

aaronqBest ResponseYou've already chosen the best response.0
no, you don't need the molar mass since you're not converting to grams
 10 months ago

amandax014Best ResponseYou've already chosen the best response.0
i'm just lost on the moles then how do i find that
 10 months ago

aaronqBest ResponseYou've already chosen the best response.0
with the molarity and the volume of solution given
 10 months ago

aaronqBest ResponseYou've already chosen the best response.0
molarity is a form of expressing concentration (in terms of moles per liter).. so basically by multiplying the molarity by the volume, you find the moles but you have to covert to molarity because mM meaning millimolar, 1 molar = 0.001 millimolar
 10 months ago

amandax014Best ResponseYou've already chosen the best response.0
so like \[\frac{ 2mL }{ 1mm} X \frac{ 1mm }{ 0.001 } ?\]
 10 months ago

aaronqBest ResponseYou've already chosen the best response.0
nope convert volume to liters .. 2mL = 0.002 L convert millimolarity to molarity 1.02 mM = 0.00102 M 0.00102 M x 0.002 L =
 10 months ago

aaronqBest ResponseYou've already chosen the best response.0
looks right, i don't have a calculator around to check though
 10 months ago

amandax014Best ResponseYou've already chosen the best response.0
ok thank you so much
 10 months ago

aaronqBest ResponseYou've already chosen the best response.0
ps you still need to multiply by avogadros number
 10 months ago

amandax014Best ResponseYou've already chosen the best response.0
yea i figured that I'm trying to get a better number I would take that equations answer 2.04 ... and multiply it by avogadro's number right
 10 months ago

aaronqBest ResponseYou've already chosen the best response.0
yep, it's 2.04x10^4 though don't forget
 10 months ago

amandax014Best ResponseYou've already chosen the best response.0
why 10^4 i got 6
 10 months ago

aaronqBest ResponseYou've already chosen the best response.0
sorry 6 lol my mistake
 10 months ago

amandax014Best ResponseYou've already chosen the best response.0
haha its ok thank you again
 10 months ago

aaronqBest ResponseYou've already chosen the best response.0
lol no prob, good luck
 10 months ago
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