question thirteen (1 Viewer)

[Aerials]

i got the answer right in the end... like 3 minutes to go *sigh of relief*

 

[scruffy012]

I cant believe this, i told myself before the exam(REEEEEEEEEEEAD the bloody question) . worked the answer but didnt add it to the original temp, idiotttttttttttttttttttttttttttttt

yeah thats what i told myself also, i know i screwed up that question, i forget my result, but i did it wrong guaranteed.....


scruffy

 

[henry]

I got C, dont know if its right. This is my working anyway.

n =m/mm
n(C3H7OH)= 0.60/60.03
n= 0.0100

H = mCt
2021000 x 0.0100 = 200 x 4.18 x t
(2021000x 0.0100)/(200x 4.18) = t
t = 24.2 *

24.2 + 21 = 45.2*

 

[VVoody]

"Gee, I think I'll guess C. I haven't had a C in a while"

That's exactly my philosophy

 

[cameron0110]

I put down C... nice to see that a lot of other people did too... yeah 1/100!

 

[lucyinthehole]

i figured out afterwards that my calculator fucked me over. did like (a x b) x 10^3 as opposed to a x (b x 10^13) as it was meant to be..... stupid order of operation....

 

[chilli]

i decided that a was the good ole "distractor" ive been told about and added it to the inititial temp to get c. it was the B wouldnt add to get any of the answers.

looks like i got it right.

bolly for me.

 

[Managore]

"i figured out afterwards that my calculator fucked me over. did like (a x b) x 10^3 as opposed to a x (b x 10^13) as it was meant to be..... stupid order of operation...."

Uhhh they're all multiplication anyway.. the order of operation isnt going to make a difference...

 

[lucyinthehole]

"i figured out afterwards that my calculator fucked me over. did like (a x b) x 10^3 as opposed to a x (b x 10^13) as it was meant to be..... stupid order of operation...."

Uhhh they're all multiplication anyway.. the order of operation isnt going to make a difference...

no no.. you'd think that, but somehow it is different... i don't remembr now, but i tried it and it gave me 2 differnt answers... i swear! *shifty*