What did people write for the pH of water one? Also how would adding acid change the taste of jelly?
I'm kicking myself about the ph of water, because I knew the answer but I doubted myself and wrote the wrong thing! It was actually that as the ratio of H+ and OH- ions remain the same, the pH is still 7 so it is still neutral and the student is correct.
For the jelly, I put it enhances the taste, and it makes it seem slightly tangy or sour. I literally had no idea haha.
One last thing: I made a silly mistake on calculating the order of the X question, but from then on, everything I did was correct. Do you happen to know if I would get full ecf marks from that?
Unless The Devil himself wrote the mark scheme too, you'll get ecf on the units, and on the calculation that you had to do for the rate constant.
WTFFFF was that!!!???? Totally scared for unit 5 after this! Yup defo not getting into uni unless the grade boundaries are extremely low Knowing edexcel they'll probably be high af :-(
I'm kicking myself about the ph of water, because I knew the answer but I doubted myself and wrote the wrong thing! It was actually that as the ratio of H+ and OH- ions remain the same, the pH is still 7 so it is still neutral and the student is correct.
For the jelly, I put it enhances the taste, and it makes it seem slightly tangy or sour. I literally had no idea haha.
What did you put?
I wrote that at higher temperatures a greater proportion of H20 dissociates into H+ and OH- (described using the Entropy of surroundings and RlnK). This leads a greater concentration of H+ and therefore the pH is not 7. Student is incorrect. However the solution still remains neutral due to equal amount of H+ and OH- produced.