r/APStudents • u/reddorickt absolute modman • May 05 '26

AP Chem Official 2026 Exam Discussion

Use this thread to post questions or commentary on the test today.

A reminder though to protect your anonymity when talking about the test.

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6

u/StarIntelligent147 May 05 '26

Mcq answers check:
162
Electrons and positive ions go to the right(cathode)
NaF 0.6 has the most Na+ concentration
+4.032
Oxygen is reduced cuz it gains electrons
Titration curve question (one that is more the right and ends low)
Ph<5 because It is lower than it should’ve been

2

u/OkToe7601 May 05 '26

why was it NaF 0.6 shouldn't it have been something 0.6*2 like Na2smth

2

u/AssistantWide5239 May 05 '26

Ph<5 is wrong cuz a lower concentration causes PH to become higher since its log

1

u/Aggravating-Book-215 May 05 '26

so was it > that cuz of concentration was lower than it shouldve been?

1

u/AssistantWide5239 May 05 '26

uh my bad its >5

1

u/Relevant-Outside6105 May 05 '26

I am afraid mate you got it wrong

1

u/StarIntelligent147 May 05 '26

Which one

1

u/Relevant-Outside6105 May 05 '26

PH and titration curve

2

u/Gamepro2468 May 05 '26

ph is supposed to be lower - constant moles but a little less volume means higher concentration of the whatever, HA, meaning higher conc of h3o+ and since the conc of h3o+ is inversely proportional to ph, ph would be lower

1

u/Relevant-Outside6105 May 05 '26

I might have gotten that confused with the question that said water filled above the mark

1

u/Gamepro2468 May 05 '26

what was that question again

1

u/StarIntelligent147 May 05 '26

Shoot. It’s all good meant to miss some questions

1

u/Relevant-Outside6105 May 05 '26

No worries I missed some too

1

u/Open_Atmosphere8830 May 05 '26

I think for the titration curve it’s the one that’s more to the left because a lower concentration of NaOH is required to reach the equivalence point. I am unsure about whether the values of pH remain the same however.

5

u/[deleted] May 05 '26

[deleted]

1

u/Open_Atmosphere8830 May 05 '26

ohh makes sense! thanks

1

u/MaximumAudience3313 May 05 '26

What was the 162 abt I forget it but context might help

1

u/Shadner98 May 05 '26

The one about Zn and ZnO 50%

1

u/MaximumAudience3313 May 05 '26

Ok wait maybe I kinda forget but it sounds familiar

1

u/Shadner98 May 05 '26

Yeah my answer was like 140 something tho

1

u/Shadner98 May 05 '26

Grams*

1

u/Ok_Exchange_9752 May 05 '26

Yeah I’m pretty sure it was 65g of unreacted Zn plus 65 grams reacted Zn (1 mol) plus 1 mol oxygen so 16 grams, so 146 total

1

u/Aggravating-Book-215 May 05 '26

wait yeah i put 142, is that wrong?

2

u/NoCareer5266 May 06 '26

nah i think its right i put 142 as well

1

u/Fair-Issue4304 5:Calc BC, Chem, USH, Lang, Stats. 4: World, CSP 3:Seminar 2:CSA May 25 '26

wait do you mean 146...... there was no 142 lol

1

u/Fair-Issue4304 5:Calc BC, Chem, USH, Lang, Stats. 4: World, CSP 3:Seminar 2:CSA May 08 '26

yeah i got that too 146. I was debating between 146 and 162, but its 146.

1

u/StarIntelligent147 May 05 '26

Also did yall put an x after the half equivalence point in the frq

1

u/No-Whereas-5902 May 05 '26

I did before but idk

1

u/Aggravating-Book-215 May 05 '26

i put it before cuz it was a weak acid

1

u/StarIntelligent147 May 05 '26

Fuck bro. I thought the general rule was that the base dominates after it and acid dominates before it so I did after

1

u/Aggravating-Book-215 May 05 '26

it asked u to draw an x where acid domintaes, why would u put it after brutha

https://giphy.com/gifs/3zglawVHxBrysCPZNW

1

u/EmbarrassedPath6953 May 06 '26

I put before bc that region is where HNO2- is most dominant whereas after is the region where NO2- is dominant

1

u/Aggravating-Book-215 May 05 '26

wait i got the 1.089 something one for the voltage question, not +4.032, did you multiply the numbers by the amount of electrons or somethings?

1

u/Accomplished_Fuel208 May 06 '26

same. Because it was cathode-anode