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Cambridge Chemistry Challenge

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Original post by DavidH20
are X and Y groups or numbers?

How would they be numbers? You have a chemical structure right?
Original post by Couldxbe
How would they be numbers? You have a chemical structure right?


I do indeed...am I missing something very obvious?
Original post by Couldxbe
How would they be numbers? You have a chemical structure right?


Got it...it was right in front of my nose (no pun intended) :P
Original post by DavidH20
I do indeed...am I missing something very obvious?


When you get it, it's going to seem so simple. It's annoying. :/ (ah, you got it :colone: Nice)

Gold is like whut too :lolwut:
Original post by DavidH20
So we need to convert grapefruit mercaptan, a thiol, to terpineol, an alcohol...then we have to find out the meaning of the cryptic X and Y

Correct. Our main problem is what to do with the formulae. :/
Okay, I know where I'm going with gold, but I can't get the right numbers in. Any advice on the right variables?


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Reply 846
Avatar for 09debel
09debel
silverr = SO i need help with to gold
Okay, Just got the answer. Clue: What do we have to replace in the chemical, not the R group, just the individual elements?
ugh. I have all the pieces of gold, I just have no clue where DAYS come into it =/
Reply 849
Avatar for nihar97
nihar97
Original post by Vinkal
i guessed it and got i right using what you said


could anyone please help on silver question
i am an igcse student and dont understand these things
pls pm me the answer
Original post by 09debel
silverr = SO i need help with to gold

Dunno if it spoils the fun giving the answer IMO.

I think Gold is something to do with Hall-Heroult right? I'm doing this as a favour for someone... Definitely not for my own personal enjoyment :tongue:
Really struggling to grasp this Silver...
Can get synthesis of terpineol from limonene, but can't get the reagents to work for X and Y; can't even find information on terpineol from mercaptan :s-smilie:
So in gold I'm guessing we're looking for a time...and it involves the Washington monument...
Well that was fun.
Reply 854
Avatar for lpdsr
lpdsr
Help in silver, pleaseee! I cant get it at all!
Original post by Couldxbe
Dunno if it spoils the fun giving the answer IMO.

I think Gold is something to do with Hall-Heroult right? I'm doing this as a favour for someone... Definitely not for my own personal enjoyment :tongue:


yeah... but days just seems out of place, and 2 amps (which is what I think the 2A represents) is far too low a current...
Any ideas on the man for Rg?


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Reply 857
Avatar for Lutski
Lutski
This question doesn't seem to work. The Faraday Constant is 96485 A s / mol, and by research I found that the amount of aluminium they used at the top of the Washington tower is 2835g which is equal to 104.6 moles Al.

(Moles * Faraday's Constant) / Amps
= (104.6 * 96485) / 2 = 5046165.5 seconds
5046165.5 seconds => 58.4 days.

It's wrong...
You're forgetting something... Do it without moles, use the other equation.


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Reply 859
Avatar for Lutski
Lutski
Original post by Snakefingers13
You're forgetting something... Do it without moles, use the other equation.


Other equation?

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