College Chemistry Tutor — Adrianne Penullar
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College Chemistry Tutoring

You don’t have to retake this course.

I teach Gen Chem and Organic Chemistry as a college adjunct professor. I know your syllabus, I know how college chem is graded, and I know exactly where students get lost — because I watch it happen every semester.

Free 20-minute consult  ·  No commitment  ·  Online via Zoom

Adrianne Penullar working through chemistry with a college student
About Adrianne

I don’t just know chemistry. I teach it at the college level.

Right after graduating from the University of Arizona (Microbiology), I co-founded a tutoring company and spent years working college students through Gen Chem and Organic. That’s where I fell in love with synthesis problems — and where I learned how students actually get stuck.

Eight years later, I’m still on the other side of the college classroom as an adjunct professor. I write exams like your professor writes them. I know the pace of the semester, the exact units where students fall behind, and what graders reward in an answer.

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    I know how it’s graded Adjunct professors write exams like your professor’s. I know what partial credit looks like and what full-credit reasoning sounds like.
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    I know when the semester gets hard Stoichiometry, equilibrium, electrochemistry — I know exactly when these hit and how to prep you before you fall behind.
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    Two master’s degrees. EdD candidate. M.S. in Chemistry Education + M.Ed. in Educational Research. I’ve spent years studying how students learn science, not just how to explain it.
Read My Full Story →
Adrianne Penullar at her desk with chemistry books
Courses I Cover

Which course are you in?

I tutor the full range of college chemistry — from introductory to Organic. If you’re in one of these courses, we can work together.

Introductory Level

Fundamental Chemistry

Intro or remedial college chemistry. Build the foundations right and the rest of the sequence becomes manageable. Ideal for students who need a strong start before Gen Chem.

First Semester

General Chemistry I · Chem 151

Stoichiometry, atomic structure, bonding, gases, thermodynamics. The course that filters pre-med and nursing students. We’ll make sure you’re not one of the ones it filters out.

Second Semester

General Chemistry II · Chem 152

Equilibrium, acids and bases, electrochemistry, kinetics. Builds directly on Chem 151 — but the pace picks up fast. Good time to get ahead of the curve.

Upper Division

Organic Chemistry

Mechanisms, synthesis problems, and reaction patterns. Organic has a brutal reputation — but it’s pattern-based. Once you see the logic, it clicks. This is my personal favorite to teach.

Not sure if your course fits? Send me a message and I’ll let you know.

Who This Is For

Does this sound like you?

College chemistry tutoring is most effective when students reach out before they’re in crisis — but even mid-semester turnarounds are possible.

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Pre-med or nursing student

Chemistry is a gateway course for your whole program. A bad grade doesn’t just hurt your GPA — it can derail your path. Too much is riding on this to wing it.

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Falling behind mid-semester

Lectures move fast in college. Miss one week and the next three don’t make sense. You need a structured catch-up plan, not just re-reading your notes.

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Struggling with Organic

Organic Chemistry stops a lot of people cold. Mechanisms feel arbitrary, synthesis is overwhelming. But there’s a logic to it — and once it clicks, it stays clicked.

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Don’t want to retake

Retaking a course costs you a semester, money, and momentum. Let’s figure out what’s not clicking now — while there’s still time to turn the grade around.

The Process

Simple. Flexible. Built around your schedule.

College semesters move fast. Here’s how we get you up to speed without adding more chaos to your week.

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Free Chemistry Check-In

20 minutes on Zoom. Tell me which course you’re in, where you’re stuck, and what’s coming up. No prep required. I’ll tell you honestly if I can help — and how.

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Get a Clear Next Step

Whether you need one targeted session or ongoing support all semester, I’ll recommend what actually fits — no package to decide on in advance.

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Targeted Sessions + Follow-up

Submit your homework or specific questions 48 hours before we meet. I build the session around what you actually need. Recap notes go out afterward so you can review before your next class.

Every Session Includes

What you actually get

Pre-session prep. I review your specific homework or exam questions before we meet and build the session around what you need — not a generic Gen Chem walkthrough.

Session recap notes. Written summary sent after every session. Review it before your next class or quiz.

Async homework review. Between sessions, send me your problem sets and I’ll give written feedback. Useful when an exam is two days away and your session isn’t until Saturday.

Exam strategy. How college chem exams are written, what professors reward, how to show your work to get partial credit even on wrong answers.

Targeted problem sets. If you need more practice on a specific mechanism or reaction type, I’ll build it. No recycled worksheets from online.

One-topic help, too. Not every student needs ongoing support. If it’s one exam or one concept, say so in the free Check-In and we’ll figure out the smallest thing that actually helps.

Fall 2026

Start with the course, not a price tag.

Whether you need one focused session or ongoing support all semester, the free Check-In is how we figure out what actually fits — then I’ll give you a straight answer on cost.

Book a Free Chemistry Check-In

Curious how sessions are structured? → See how tutoring works

Student FAQ

Questions I get from college students

It’s rarely too late to turn things around — but it depends on how far behind and how much time is left in your semester. Book the free Check-In and we’ll assess honestly. Sometimes the answer is a focused catch-up plan. Sometimes it’s better to focus on the final and plan for next semester. Either way, we’ll figure out the most useful thing to do with the time you have.
Sessions require 48 hours notice so I have time to review your materials and prep for the session. That means if your exam is Thursday, booking Wednesday morning won’t work. If you’re on a recurring weekly time, that’s reserved in advance so you’re never scrambling.
For Fall 2026, scheduled sessions are Saturdays — I teach full-time during the week. That said, students also get async homework review between sessions, so you can send questions any day of the week and get written feedback before your next class.
Yes — and this is actually one of the most useful things I can do. Send me past exams or a practice test from your professor and I can reverse-engineer what they’re testing for, how they weight partial credit, and what kind of explanation they want to see. This is the advantage of working with someone who writes college chem exams themselves.
Absolutely — one topic, one exam, one mechanism that won’t click is a completely normal reason to reach out. Book the free Check-In and tell me what you need help with. I’ll prep specifically for that, and we’ll figure out from there whether one session covers it.
It’s 20 minutes on Zoom, no prep needed. We’ll talk about which course you’re in, what’s not clicking, and what’s coming up on your calendar. I’ll ask a few questions to understand how you learn and what you’ve already tried. At the end I’ll give you an honest take on whether tutoring makes sense for you and what I’d recommend if so.
Shared With Permission

What students remember.

Anonymous student feedback, shared with permission.

This was my first experience with chemistry, and I was very intimidated. By the end, I loved it. It became my favorite class.

I always felt that almost all of my questions were answered by the end of class. The way you presented the math made my experience so much easier.

It was the most active class I’ve ever been in. It was easy to ask questions about things I didn’t understand.

Comments are anonymous and lightly edited for clarity.

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20 minutes. No commitment. Just clarity.

Book a free Chemistry Check-In and we’ll figure out what’s not clicking — and whether I’m the right person to help you fix it.