AS chem unit 1 question
A 0.143g gaseous sample of ammonia occupied a volume of 2.86 x 10-4 m3 at a temperature T and a pressure of 100kPa
State the ideal gas equation, calculate the number of moles of ammonia present and deduce the value of the temperature T.
The gas constant R= 8.31
I have no idea if this is right or not but i did this...
pv=nRt so T= pv/nR
Volume- 0.000286
p-100,000
T-?
r-8.31
n-?
Ammonia =nh3( 14+3) =17
moles = mass/mr 0.143/17= 0.0084 mol
T=pv/nr 100,000 x 0.000286/ 0.0084 x 8.31 = 409 so T =409k???
If im wrong (which i probably am) how do i work it out?
State the ideal gas equation, calculate the number of moles of ammonia present and deduce the value of the temperature T.
The gas constant R= 8.31
I have no idea if this is right or not but i did this...
pv=nRt so T= pv/nR
Volume- 0.000286
p-100,000
T-?
r-8.31
n-?
Ammonia =nh3( 14+3) =17
moles = mass/mr 0.143/17= 0.0084 mol
T=pv/nr 100,000 x 0.000286/ 0.0084 x 8.31 = 409 so T =409k???
If im wrong (which i probably am) how do i work it out?
So there's 0.143g of Ammonia right?
number of moles = what there is/Mr
0.143/17 = 0.00841...moles
T= PV/NR
T= (100000 x 0.000286)/(8.31 x 0.00841...) = 409K
Yessiree. You are correct.
number of moles = what there is/Mr
0.143/17 = 0.00841...moles
T= PV/NR
T= (100000 x 0.000286)/(8.31 x 0.00841...) = 409K
Yessiree. You are correct.
Aeon, you're aware you've neg repped me right with a message saying 'Thanks'?
LOL ! sorry i thought I gave you positive rep , can i change it?
Your rep wouldn't be worth anything anyway, so it shouldn't matter.
He's right. Chillax... just be more careful next time and give me positive rep when your own rep is high...
Esma
Oh sugar!I tried to give back Hippy snake a +ve rep because he got negged by mistake but I cliked on ToiletPaper8 by mistake!!Sorryy..(My rep is probably worth nothing too)..Sorry though
your's is worth something
Hippysnake
He's right. Chillax... just be more careful next time and give me positive rep when your own rep is high...
Esma
Oh sugar!I tried to give back Hippy snake a +ve rep because he got negged by mistake but I cliked on ToiletPaper8 by mistake!!Sorryy..(My rep is probably worth nothing too)..Sorry though
Ahh, a tricky dilemma indeed
. I'll rep Hippysnake tomorrow. No one needs to owe anyone rep. Problem solved, and I'm sure my rep is worth more anyway 
Hahahaha.....why me!? WHY!?
EDIT: At the post above. Fanx luv.
EDIT: At the post above. Fanx luv.
EierVonSatan
your's is worth something
your's is worth something
Ooo nearly 4000 posts
Toiletpaper8
Ooo nearly 4000 posts
A thread just got put into H&R recycle bin where I had a post
edit: and reclaimed back grrr!
EierVonSatan
A thread just got put into H&R recycle bin where I had a post
edit: and reclaimed back grrr!
edit: and reclaimed back grrr!
Haha, yea
I found it rather amusing how you proclaimed to have 4,000 posts when you had 3,999 and now you have 4,001
Did you ever make your 4,000th post?
Toiletpaper8
Haha, yea
I found it rather amusing how you proclaimed to have 4,000 posts when you had 3,999 and now you have 4,001
Did you ever make your 4,000th post?
I found it rather amusing how you proclaimed to have 4,000 posts when you had 3,999 and now you have 4,001
Did you ever make your 4,000th post?
Would seem not
why dont you guys give me +ve rep so my rep can be worth something =D
Aeon Prince
why dont you guys give me +ve rep so my rep can be worth something =D
You need 150 posts, you already have the reputation required
Original post by Aeon Prince
A 0.143g gaseous sample of ammonia occupied a volume of 2.86 x 10-4 m3 at a temperature T and a pressure of 100kPa
State the ideal gas equation, calculate the number of moles of ammonia present and deduce the value of the temperature T.
The gas constant R= 8.31
I have no idea if this is right or not but i did this...
pv=nRt so T= pv/nR
Volume- 0.000286
p-100,000
T-?
r-8.31
n-?
Ammonia =nh3( 14+3) =17
moles = mass/mr 0.143/17= 0.0084 mol
T=pv/nr 100,000 x 0.000286/ 0.0084 x 8.31 = 409 so T =409k???
If im wrong (which i probably am) how do i work it out?
State the ideal gas equation, calculate the number of moles of ammonia present and deduce the value of the temperature T.
The gas constant R= 8.31
I have no idea if this is right or not but i did this...
pv=nRt so T= pv/nR
Volume- 0.000286
p-100,000
T-?
r-8.31
n-?
Ammonia =nh3( 14+3) =17
moles = mass/mr 0.143/17= 0.0084 mol
T=pv/nr 100,000 x 0.000286/ 0.0084 x 8.31 = 409 so T =409k???
If im wrong (which i probably am) how do i work it out?
Bro's work coming in clutch 14 years later 🙏🙏
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