Recent content by lounjg

i think 14 was D, in the exam i chose C lol,i read sodium carbonate and thought it was nahco3, doing this lead me to 29.

i got like 7.3 X10^-9 it was 7. smth

Also for the question where they found the nh4 in the fertiliser i had no clue what to do. i had 1.55g or smth. I didnt know what to do at the step when they boiled the ammonia with NaOH

i got 81.7L, thought it was about right because i remember it was like 3.16 moles and 3 moles of gas is heaps of volume. 1 mole of gas is 24.79L at slc for example

Yeah this is correct lol i think of these long ass equations but not smth simple. Also for q31 i done an absoprbance of 0.56 insted of 0.66 RIPP. I also squared the wrong number when finding keq max 4 marks theyre giving me

how? I was trying to solve for 2 terms, (x being the change in equilibrium, y being the how much co2 was added). They said they were equal so keq = 1/x, I got this equation in the end. didnt want to waste my last 20 mins trying to solve so i cut my losses. I still cant solve it lol.