National 5 Chemistry

Do you mean concetration calcualtions?
In our school we got taught NCV...

Oh well in that case, yes. They always have a titration question.



I don't use PVC lol.



Oh I understand now.

Give us an example and I'll show you what to do.

Here's an example

Here's an example

That's just using the mole triangles and molar ratio? I'll try and find one that I mean


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What is PVC ? and why haven't I did it

Here's an example

Wait what is PVC ?
I have never used that formula in chemistry at all..

What is PVC ? and why haven't I did it

Do you guys think there are any experiements that we need to know inside out for the exams ?

I've got these down already...

+ Haber Process
+ Ostwald Process
+ Titration experiment
+ Energy released experiment ( Eh=cmDeltaT)

Do you know any other that we should know ?

Percentage composition is also important...

What's that ?

Is it when it asks you for a percentage of an element in a compound ?

So

%Element = Gfm/Total Gfm x 100

Just out of curiosity did anyone else here sit national 5 maths, and if so do you think you will be scoring lower than your target grade on the 9th of August??


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Most Definitely, I will definitely not be achieving my target grade

Percentage composition is 3 easy marks!

Thanks for that Jay!

Most Definitely, I will definitely not be achieving my target grade

Yeah me too😔 I was a predicted A but I'm barely clinging on to a low b from my rough calculation...



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