In high school, I participated in quite a few chemistry competitions, culminating in my participation in the Washington University Chemistry Tournament (and later the International Chemistry Olympiad 2020 in Istanbul, held virtually due to the COVID-19 Pandemic). I also worked as a staff member of the USNCO discord server for which I helped to organize and write for several contests(CODS-CT 2020 and Mock IChO in particular), as well as curated the Problem of The Day (POTD).
For personal use, you are free to use these resources as you wish. Otherwise, please send me an email.
New Arrivals
- Novosibirsk Organic Olympiad translations
- Special thanks to Edward Jin for help collecting the original pdfs!
General Chemistry Resources
- Advice for Post USNCO
- Here's some advice if you are starting to feel like USNCO questions are becoming repetitive/too easy. It's not applicable to beginners.
- Join the USA Chemistry Olympiads Discord Server! The link is on their website .
- The server hosts many competitions every year including a Mock USNCO, Mock IChO, and several other original format competitions like CODS-CT and ACOT.
- Edward Jin's website is another excellent resource!
- How to Draw Organic Schemes
- An introduction to tools like MarvinSketch and Draw.io which you can use to draw your own organic puzzles (and get a degree in graphic design!)
Chemistry Problems
- Original Problems
- Physical Chemistry
- Dimerization Thermodynamics
- Sodium Particle in a Box
- Explosive Electrochemistry
- Stil time for Stille.pdf
- Organic Chemistry
- Inorganic & Analytical Chemistry + Miscellaneous
- Copper Ammonia Equilibria
- Mineral Analysis
- Mysterious Acetates
- Isothermal Titration Calorimetry - my favorite question!
- Mock IChO - Written for a proctored competition on the CODS discord server in collaboration with Alec Zhu.
- The Problems
- The Solutions
- Corrections issued during the exam (typos etc.)
- Compilations
- Challenge POTDs typeset in LaTeX
- Russian Olympiad Organic Compilation
- This large document contains a compilation of organic chemistry questions which I translated from the Russia National Olympiads from about 2010-2019
- Translations
- 2019 Russian Winter Camp Test
- 2017-2019 Russian National Olympiad Tour 2 - with help from Alex Li, Alec Zhu, and Gideon Tzafriri
- Assortment of good quality translations
- This folder contains many problems from various sources (Mendeleev, Russian Olympiad, CChO etc.) sorted by topic. I put in a lot of effort into these, so they should be well translated.
- Comment: The Russian Olympiad Organic Compilation in the "Compilations" section was also translated.
- CChOs - Special thanks to YY Zhou for help with these!
- Novosibirsk Organic Olympiad translations
- Special thanks to Edward Jin for help collecting the original pdfs!
Mock Contests
I wrote and formatted several mock chemistry contests during my time during my time participating in USNCO. Here are some of the more complete ones.
- Mock USNCOs
- Mock USNCO - A mix of original and old problems(sourced from past IChOs etc.)
- Mock Camp Tests: See ReadMe