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National 5 Chemistry

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Please tell me there was no titration calculation question ?
Original post by eve_4342
What did you draw :0 I drew what it said in the picture XD Yeah, only 1 mark - be positive!


I think you have gotten it right if it was on the question I don't even know the exact name of the thing I worte but it's thi weird tub thing but yeah it' ok 1 mark:smile:
Reply 482
Original post by Ethan100
Please tell me there was no titration calculation question ?


Nope (surprisingly) There was a question were you had to take the average titre
Original post by Jay431
Ignore that possibility :-)


haha yeah but what did you do to get it I saw they divided 1 by 100 so did the same for 24 :smile:
I also got 0.24, hopefully that's right
Original post by Aaaaa01
Ive got the question booklet with me and circled the answer as i went along


Aha oka, I thought you had an insane memory :biggrin:
Reply 486
Original post by studyranger
haha yeah but what did you do to get it I saw they divided 1 by 100 so did the same for 24 :smile:


I done this:
1 mole --- 1 = 24 litres
0.01 moles = 24*0.01/1

0.24 litres.
Original post by Jay431
I done this:
1 mole --- 1 = 24 litres
0.01 moles = 24*0.01/1

0.24 litres.


cool as long as it's right :smile:
Original post by Jay431
I done this:
1 mole --- 1 = 24 litres
0.01 moles = 24*0.01/1

0.24 litres.


I really didn't do that! I saw the equation and was like 1m = 24 or 3m = 72.
Then 2/2 x 0.01 = 0.01 al moles and then 72/2 x 0.01 = 0.36

Haha oh sh*t :biggrin:XD
Reply 489
Original post by studyranger
cool as long as it's right :smile:


Hopefully!
Reply 490
Original post by eve_4342
I really didn't do that! I saw the equation and was like 1m = 24 or 3m = 72.
Then 2/2 x 0.01 = 0.01 al moles and then 72/2 x 0.01 = 0.36

Haha oh sh*t :biggrin:XD


You're method could be right. Nobody knows the real answer yet :smile: But please god let it be 0.24 litres :P
Lol i wish :frown:
Original post by eve_4342
I really didn't do that! I saw the equation and was like 1m = 24 or 3m = 72.
Then 2/2 x 0.01 = 0.01 al moles and then 72/2 x 0.01 = 0.36

Haha oh sh*t :biggrin:XD


That could still be right:smile:
Original post by Jay431
You're method could be right. Nobody knows the real answer yet :smile: But please god let it be 0.24 litres :P


I hope for me!!!!:tongue:
Original post by studyranger
That could still be right:smile:


I hope!
For the last using your knowledge q what did everyone put down?
Reply 496
I'm pretty sure that 0.36 litres is right as the balanced equation above the question showed 2Al to 3H2
Reply 497
For the strontium question where it asked you to talk about it's chemistry what did everyone say? I talked about it's:

It's valency and how it's in group 2
Then it's Atomic Number and then I explained how it represents the number of protons and electrons.
Talked about how it's a metal and has metallic bonding.
Talked about how it can conduct electricity and briefly explained why.
Then I ended it off with its relative atomic mass and what it means for its isotopes.

I only now just remembered a very easy one I could of talked about: It's flame colour -_- (Facepalm)
Original post by studyranger
For the last using your knowledge q what did everyone put down?


Boil caputure the gas, add lime water
just add lime water
couht the bubbles
Hold damp pH paper over the tube and see how red it goes as CO2 is acidic
Weigh out 100g abd then measure the volume, as bubble take up space

I wrote it in more detail in the exam lol
What did everyone get for the what type of reaction is it at beaker B and the other reaction one?

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