OrgoMech is an iOS app for organic chemistry students and pre-meds. You draw or pick a reactant, add reagents, predict the major product, then practice ordering the curved-arrow mechanism steps — the same skills tested on exams and the MCAT.

Is OrgoMech good for MCAT organic chemistry?

Yes. OrgoMech focuses on reaction outcomes, stereochemistry, and mechanism arrow-pushing — core skills for the organic chemistry section of the MCAT and undergraduate orgo courses.

How is OrgoMech different from memorizing reactions?

Instead of isolated facts, you see why a product wins (regiochemistry and stereochemistry) and practice electron-pushing in sequence. The reaction library groups mechanisms by type with the trap answers students confuse on tests.

Does OrgoMech include a reaction mechanism practice mode?

Yes. After predicting the product, you order the mechanism steps — nucleophile attack, leaving group departure, and pi bond formation — matching graded mechanism questions.

Where can I download OrgoMech?

OrgoMech is available on the Apple App Store for iPhone and iPad in the United States and other regions where the app is listed. Use the Download on the App Store link on this site.

When should I start studying for an organic chemistry final?

Start active review at least two to three weeks before the exam if the final is cumulative. Earlier is better for mechanism families you marked red on a self-quiz.

How do I study for orgo final without rereading every chapter?

Build a topic checklist, do mixed problems daily, and only reread sections tied to missed questions. Retrieval beats passive highlighting.

What topics appear on most orgo finals?

Substitution, elimination, alkenes, carbonyl chemistry, aromatics, and spectroscopy (if your course includes it) are common. Weight follows your syllabus.

How many hours a day should I study the week before the final?

Many students use 2–4 focused hours with breaks rather than one exhausting block. Quality of mixed mechanism practice matters more than total hours.

Should I memorize every reaction name for the final?

Prioritize patterns — electron pushing, stereochemistry, and reagent cues — over isolated names. Named reactions matter as templates you recognize.

How can a countdown help before finals week?

A visible exam date pushes you to schedule mixed review instead of assuming you have “plenty of time” until the library is full.

Is it worth doing daily short drills during final season?

Yes. Short spaced sessions that bring back missed reaction types help retention more than cramming the same chapter notes repeatedly.

Study guide by goal · en-US undergraduate orgo

How to study for your organic chemistry final (without last-minute panic)

The organic chemistry final is cumulative: substitution, elimination, alkenes, carbonyls, aromatics, and spectroscopy can all appear on one exam. The students who do well usually stop rereading the textbook cover to cover and switch to retrieval — predicting products, drawing mechanisms, and fixing the same mistake types until they stick.

Start with what your syllabus actually weights

Pull your lecture outcomes and old exams if your professor releases them. Finals often overweight second-semester material but still pull first-semester mechanisms when synthesis or multi-step logic shows up.

Make a one-page list of reaction families (SN1/SN2, E1/E2, additions, carbonyls, EAS, etc.) and mark each green/yellow/red based on a honest self-quiz — not how you felt during the lecture.

Build a 2–3 week calendar backward from exam day

Week 1: Red and yellow topics only — 45–90 minutes of active problems per day, mixed mechanisms. Week 2: Full mixed sets timed loosely; note every wrong regiochemistry or stereochemistry call. Final 3–5 days: Sleep, light review, and only high-yield flash fixes — no all-nighter on new content.

Put the exam date somewhere you see daily. A visible countdown sounds small, but it stops you from treating “two weeks” like an abstract idea until the library fills up.

Practice format should match what you will be graded on

If your final includes mechanism arrows, practice arrows every session — not just product names. If synthesis is on the table, drill disconnections: what carbonyl addition or alkylation installed that bond?

Group wrong answers by trap type (inversion vs retention, Zaitsev vs Hofmann, Markovnikov vs anti-Markovnikov). Fixing patterns beats memorizing another table.

Use a reaction library as a map, not a novel

Browse by mechanism type when you study: reagents, conditions, major product, and the one line about why students pick the wrong isomer. That structure matches how finals test you — condition in the prompt, outcome in the choices.

Apps or sheets that organize reactions by type save time versus searching lecture PDFs. The goal is quick retrieval under time pressure.

Checklist

List every mechanism family from the syllabus with a honest red/yellow/green rating.
Schedule mixed problem sets at least 10 days before the final — not the night before.
For each missed problem, write the correct product and a minimal arrow sequence.
Review stereochemistry rules (SN2, halogen addition, hydroboration) as a single pass.
Sleep 7+ hours the two nights before the exam — retrieval drops sharply when you are exhausted.

Free mechanism hubs to pair with this guide

SN1 vs SN2 — SN1 vs SN2
Stereochemistry — how to assign R and S
Carboxylic acid derivatives — carboxylic acid derivatives reactivity
E1 vs E2 — E1 vs E2
Carbonyl chemistry — aldol mechanism
Aromatic substitution — ortho para directors

MCAT organic chemistry study plan

Student questions

When should I start studying for an organic chemistry final?: Start active review at least two to three weeks before the exam if the final is cumulative. Earlier is better for mechanism families you marked red on a self-quiz.
How do I study for orgo final without rereading every chapter?: Build a topic checklist, do mixed problems daily, and only reread sections tied to missed questions. Retrieval beats passive highlighting.
What topics appear on most orgo finals?: Substitution, elimination, alkenes, carbonyl chemistry, aromatics, and spectroscopy (if your course includes it) are common. Weight follows your syllabus.
How many hours a day should I study the week before the final?: Many students use 2–4 focused hours with breaks rather than one exhausting block. Quality of mixed mechanism practice matters more than total hours.
Should I memorize every reaction name for the final?: Prioritize patterns — electron pushing, stereochemistry, and reagent cues — over isolated names. Named reactions matter as templates you recognize.
How can a countdown help before finals week?: A visible exam date pushes you to schedule mixed review instead of assuming you have “plenty of time” until the library is full.
Is it worth doing daily short drills during final season?: Yes. Short spaced sessions that bring back missed reaction types help retention more than cramming the same chapter notes repeatedly.

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Optional: drill on your phone between problem sets

OrgoMech is free to download on the App Store. Use it when you want mixed reaction practice — product first, mechanism second — not as a substitute for your textbook or professor’s office hours.

Download on theApp Store FAQ

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