LiveWire Network Peer Answers Peer Support Teen Forums Tech Forums College Forums 582 users online 211559 members 1560 active today Advertise Here Sign In
TeenCollegeTechPhotos | Quizzes | LiveSecret | Memberlist | Dictionary | News | FAQ
Member Spotlight
barnabas
Peeves: Intentional ignorance and blind hatred...
Mood: Excited
You have 1 new message.
Emergency Help
Until you sign up you can't do much. Yes, it's free.

Sign Up Now
Membername:
Password:
Already have an account?
► Invite Friends
► Active Members
► Groups
► Contests
Moderators
6 online / 31 MPM
Fresh Topics
  LiveWire / Teen Forums / School & Homework Connection / Viewing Topic

Chemistry help please
Replies: 16 — Last Post Jan. 2 1:41pm by Capt Kuchiki Byakuya
Welcome to LiveWire!
We're Stronger Together. 		Join the Community
Pages: 1 2  Next » Email Print Favorite
( Uhhello )


Executive 		Reply
The answer is 5cm but i can't seem to get it...:(

10cm of hydrogen is burnt in oxygen to form water.
What volume of oxygen is needed for the hydrogen to burn completely?

Thanks for any help :)

12:25 pm on Jan. 2, 2009 | Joined: Feb. 2008 | Days Active: 230
Join to learn more about Uhhello England, United Kingdom | Straight Female | Posts: 1,335 | Points: 3,690
yyyt


Wealthy Hobo 		Reply
do you mean cm cubed?

-------
I give up on trying to use knowledgeable quotes as
signatures, they always turn out tacky...
12:26 pm on Jan. 2, 2009 | Joined: Dec. 2008 | Days Active: 117
Join to learn more about yyyt England, United Kingdom | Straight Female | Posts: 4,008 | Points: 5,642
agerask


Soothsayer 		Reply
use dimensional analysis.
12:26 pm on Jan. 2, 2009 | Joined: Aug. 2008 | Days Active: 193
Join to learn more about agerask Norway | GLBT Ally Female | Posts: 7,824 | Points: 10,094
Z o E


Connoisseur 		Reply
isnt it something to do with the ratio of hydrogen to oxygen.

-------
there aint no party, like my nana's tea party
12:26 pm on Jan. 2, 2009 | Joined: Mar. 2008 | Days Active: 195
Join to learn more about Z o E England, United Kingdom | Female | Posts: 4,409 | Points: 7,901
wallopwoop


Dairy Product Addict 		Reply
Dude water's two parts hydrogen and one part oxygen.  Everybody learned that in like kindergarten.
12:26 pm on Jan. 2, 2009 | Joined: May 2007 | Days Active: 127
Join to learn more about wallopwoop Ohio, United States | Label Free Male | Posts: 1,247 | Points: 2,590
Lord Cat


Wealthy Hobo
Patron 		Reply
Well there is twice as much hydrogen then oxygen
So if there is 10cm of H then there is 5cm of O

-------
Don't click here
but what ever you do don't click here!
12:26 pm on Jan. 2, 2009 | Joined: Sep. 2008 | Days Active: 153
Join to learn more about Lord Cat Ireland | Label Free Male | Posts: 2,547 | Points: 4,087
Leannbby


Dairy Product Addict
Ad Free 		Reply
Quote: from Lord Cat at 3:26 pm on Jan. 2, 2009
Well there is twice as much hydrogen then oxygen
So if there is 10cm of H then there is 5cm of O

im pretty sure thats it

-------
www.myspace.com/leanninyourface   -hit it up (:

12:27 pm on Jan. 2, 2009 | Joined: Dec. 2008 | Days Active: 19
Join to learn more about Leannbby North Carolina, United States | Straight Female | Posts: 723 | Points: 1,576
senior09


Dairy Product Addict 		Reply
There are two hydrogens so you have to use half of the oxygen

-------
Forget the past live for the future
12:27 pm on Jan. 2, 2009 | Joined: Dec. 2008 | Days Active: 158
Join to learn more about senior09 Kansas, United States | Straight Male | Posts: 136 | Points: 1,898
marshmellowman


non compos mentis
Patron
Support Leader
Tech Support Leader 		Reply
The reaction is H2 + 1/2O2 -> H2O

So you had 1 mole of Hydrogen + 1/2 mole of Oxygen making one mole of water.

Therefore the volume of oxygen will be half the volume of hydrogen needed, 10/2 = 5cm^3.

-------
and victorious in war shall be made glorious in peace.

12:28 pm on Jan. 2, 2009 | Joined: Feb. 2007 | Days Active: 712
Join to learn more about marshmellowman England, United Kingdom | Straight Male | Posts: 21,314 | Points: 38,562
sicosys


Connoisseur
Ad Free 		Reply
Quote: from Lord Cat at 12:26 pm on Jan. 2, 2009
Well there is twice as much hydrogen then oxygen
So if there is 10cm of H then there is 5cm of O

I know this is it haha

-------
I'm gonna live forever, or die trying!
im with stupid is my long lost brother!
http://www.golivewire.com/forums/peer-yeppset-support-a.html vote

12:28 pm on Jan. 2, 2009 | Joined: Sep. 2008 | Days Active: 211
Join to learn more about sicosys Colorado, United States | Straight Male | Posts: 3,384 | Points: 7,227
( Uhhello )


Executive 		Reply
Quote: from yyyt at 12:26 pm on Jan. 2, 2009
do you mean cm cubed?

Yea

12:29 pm on Jan. 2, 2009 | Joined: Feb. 2008 | Days Active: 230
Join to learn more about Uhhello England, United Kingdom | Straight Female | Posts: 1,335 | Points: 3,690
Frubeling

Guru
Patron 		Reply
Everyones giving the most simple method, are you expected to use moles?

-------
http://www.last.fm/user/Frubeling
12:29 pm on Jan. 2, 2009 | Joined: June 2008 | Days Active: 322
Join to learn more about Frubeling England, United Kingdom | Posts: 21,341 | Points: 21,790
Post from this position was omitted due to content violations
( Uhhello )


Executive 		Reply
Quote: from Frubeling at 12:29 pm on Jan. 2, 2009
Everyones giving the most simple method, are you expected to use moles?

Well i was trying top use like
1 mole of gas occupies 24dm volumne...
I think i was over complicating it.
Thankyou everyone.

12:30 pm on Jan. 2, 2009 | Joined: Feb. 2008 | Days Active: 230
Join to learn more about Uhhello England, United Kingdom | Straight Female | Posts: 1,335 | Points: 3,690
Frubeling

Guru
Patron 		Reply
Quote: from Uhhello at 8:30 pm on Jan. 2, 2009
Quote: from Frubeling at 12:29 pm on Jan. 2, 2009
Everyones giving the most simple method, are you expected to use moles?

Well i was trying top use like
1 mole of gas occupies 24dm volumne...
I think i was over complicating it.
Thankyou everyone.

You did over complicate it, alot

-------
http://www.last.fm/user/Frubeling
12:31 pm on Jan. 2, 2009 | Joined: June 2008 | Days Active: 322
Join to learn more about Frubeling England, United Kingdom | Posts: 21,341 | Points: 21,790
Pages: 1 2  Next » Email Print Favorite

Quick Reply

You are signed in as our guest.

Looking for something else?
 

  LiveWire / Teen Forums / School & Homework Connection / Viewing Topic

© 2000-2009 LiveWire Peer Support Network
Custom Web Hosting | Teen Advice | Peer Support