Chemistry: Discussion, Questions & Potential Solutions

[horse9996]

I liked the carbon dioxide seven marker but I stuffed up the industrial chem one.

I wrote so much for the industrial one so hopefully I don't lose marks for 'extraneous information' or whatever past papers have in the criteria

[eliseclare12]

How did people do the K question for industrial? I've heard people talking about quadratic formula but I just had no idea how to do it without being given any equilibrium concentrations.

[FutureLawStudent]

How did people do the K question for industrial? I've heard people talking about quadratic formula but I just had no idea how to do it without being given any equilibrium concentrations.

I'm really salty about that. I don't do maths, and while I had mastery of quadratics in year 10, its definitely faded, and it's certainly not something that I knew I needed to know.

I guessed and checked, but fucked that up, I think I might be able to get 2 marks, if not 1.

[horse9996]

How did people do the K question for industrial? I've heard people talking about quadratic formula but I just had no idea how to do it without being given any equilibrium concentrations.

I used the quadratic formula and then disregarded one of the solutions (would mean that the equilibrium concentrations of the reactants would be less than zero). I think you can also just square root both sides however, but I haven't tried it

[cnimm2000]

Hey guys, does anyone have sample answers for the multiple choice for chemistry?. I tried the matrix link but its not loading

[FutureLawStudent]

Hey guys, does anyone have sample answers for the multiple choice for chemistry?. I tried the matrix link but its not loading

Matrix ones are usually up about 9-10pm, as they have to write them.

[FutureLawStudent]

Matrix solutions are now out: https://www.matrix.edu.au/2018-hsc-chemistry-exam-paper-solutions-with-option-topics/