Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
amandax014
Group Title
how many molecules of glucose are in a 2.0 mL of a 1.02 mM solution of glucose
 one year ago
 one year ago
amandax014 Group Title
how many molecules of glucose are in a 2.0 mL of a 1.02 mM solution of glucose
 one year ago
 one year ago

This Question is Closed

aaronq Group TitleBest 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
 one year ago

aaronq Group TitleBest ResponseYou've already chosen the best response.0
ps. convert to mM to M. 1 mM = 0.001 M
 one year ago

amandax014 Group TitleBest ResponseYou've already chosen the best response.0
so calculate the mass C6H12O6? then divide that by 1.02?
 one year ago

aaronq Group TitleBest ResponseYou've already chosen the best response.0
no, you don't need the molar mass since you're not converting to grams
 one year ago

amandax014 Group TitleBest ResponseYou've already chosen the best response.0
i'm just lost on the moles then how do i find that
 one year ago

aaronq Group TitleBest ResponseYou've already chosen the best response.0
with the molarity and the volume of solution given
 one year ago

aaronq Group TitleBest 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
 one year ago

amandax014 Group TitleBest ResponseYou've already chosen the best response.0
so like \[\frac{ 2mL }{ 1mm} X \frac{ 1mm }{ 0.001 } ?\]
 one year ago

aaronq Group TitleBest 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 =
 one year ago

amandax014 Group TitleBest ResponseYou've already chosen the best response.0
2.04X10^6
 one year ago

aaronq Group TitleBest ResponseYou've already chosen the best response.0
looks right, i don't have a calculator around to check though
 one year ago

amandax014 Group TitleBest ResponseYou've already chosen the best response.0
ok thank you so much
 one year ago

aaronq Group TitleBest ResponseYou've already chosen the best response.0
ps you still need to multiply by avogadros number
 one year ago

amandax014 Group TitleBest 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
 one year ago

aaronq Group TitleBest ResponseYou've already chosen the best response.0
yep, it's 2.04x10^4 though don't forget
 one year ago

amandax014 Group TitleBest ResponseYou've already chosen the best response.0
why 10^4 i got 6
 one year ago

aaronq Group TitleBest ResponseYou've already chosen the best response.0
sorry 6 lol my mistake
 one year ago

amandax014 Group TitleBest ResponseYou've already chosen the best response.0
haha its ok thank you again
 one year ago

aaronq Group TitleBest ResponseYou've already chosen the best response.0
lol no prob, good luck
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.