HSC Chemistry SOLUTIONS / Thoughts / Predictions (3 Viewers)

[Luke322]

im pretty sure when they got number of moles they multiplied that by avagadros constant (6.022*10^23). i have no idea why they used that constant tho

OHHH its cause thats how many molecules of the substance there is in one mole so they're finding the number of monomer molecules in the 0.001735mol which gives the answer

 

[hscisbotshit]

OHHH its cause thats how many molecules of the substance there is in one mole so they're finding the number of monomer molecules in the 0.001735mol which gives the answer

OOOOOHHHHHHHHHHHHH that makes sense now thank uuuu so much

 

[Luke322]

best of luck for chem lads we've got this don't worry. Our great and generous overlords at NESA will make the exam easy because they love us.

 

[jazz519]

As said in the main post: If anyone gets access to the paper after the exam from a friend or a teacher, please send it to me. I will write up full answers to the exam the same day I receive the paper

 

[pineapplefritter]

omg I slacked so hard during my break and now im doomed hopefully my internal rank can save me lmao

 

[thatmailman]

good luck for chem everyone! u got this

 

[Speed’o’sound Sonic]

so for this imaginary problem

’calculate the pH of a solution when 0.500g of naoh is dissolved in 1.0L of water. Assume 1 kg=1000g’

What is the least number sig figs in this question?

2 sig figs

 

[Speed’o’sound Sonic]

GOOD LUCK FOR TODAY EVERYONE
I’m assuming this is the last exam for most of you so smash it out the park!

 

[CM_Tutor]

I think it should.
View attachment 29461

The central hydrogen will see 5 neighboring hydrogens in unique environments. N + 1 rule will produce 6 peaks.

Actually, the 'red' H will be split into a quartet by the 3 'blue' H atoms and into a triplet by the 2 'green' hydrogens, so the 'red' H will have a signal that consists of a quartet of triplets and thus of 12 lines. However, it is likely that some will overlap and so the result is likely to be a multiplet.

 

[Luke322]

We got this lads

 

[Husky]

That was hard

 

[Luke322]

THAT TEST WAS SCUFFED

 

[NoUsername]

Wait...everyone got a ph of 7.0 for that solution equilibrium question right? I think I stuffed that question up, but I'm confident with majority of the rest.

 

[NN03]

Wait...everyone got a ph of 7.0 for that solution equilibrium question right? I think I stuffed that question up, but I'm confident with majority of the rest.

What max. temp did you get for the last question?

 

[NoUsername]

What max. temp did you get for the last question?

I can't remember exactly, off the top of my head there was an increase of 50 somthing degrees, so the maximum was 70 something.

 

[4u Boy]

Gae paper

 

[jazz519]

What were the longer response questions you received?

 

[4u Boy]

What were the longer response questions you received?

Nothing was long response only calculation

 

[4u Boy]

Nothing was long response only calculation

Crazy stupid calculation never seen before

 

[MrGresh]

It was so different to what I've seen before. A lot of the questions seemed very hard at first but turned out to be easier with some problem solving and thought.

But definitely harder than 2019 by a SIGNIFICANT margin