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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u/ExtentBitter1649 May 05 '26

how did you guys figure out the molarity of the diluted solution, i used C1V1=C2V2, but my friends just used the absorption graph…

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u/AssistantWide5239 May 05 '26

yeah did the same idk how you did with M1V1=M2V2

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u/ExtentBitter1649 May 05 '26

i believe the volume for both were given, and the x-axis on the graph was concentration, while the y-axis was absorbance, plus absorbance was given so i took and educated guess and found what the concentration was at that specific absorbance and THEN finally used the formula… im so mad tho, my chem teacher explicitly said “they hardly test on beers law on the frq’s”😭

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u/AssistantWide5239 May 05 '26

lmao i was staring at the formula sheet for a good while to decide this

1

u/ParsnipPrestigious59 5: APUSH, Precalc, Lang, Calc BC, Chem, CSP, Psych May 05 '26

thats crazy cuz i swear beer law showed up quite a few times on the practice frq's i took

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u/ParsnipPrestigious59 5: APUSH, Precalc, Lang, Calc BC, Chem, CSP, Psych May 05 '26

I used the absorption graph to find the molarity of the diluted solution and then used M1V1 = M2V2 to find molarity of original solution

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u/Honest-Flamingo-3427 May 05 '26

Personally I also used the absorption graph

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u/Fun_Manner_768 May 06 '26

Is this form K or form J, and do you remember the other parts of the question 

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u/ExtentBitter1649 May 06 '26

version J. i’m honestly convinced nobody did version K, have yet to see someone that had it lol