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Faculty of Arts & Science · St. George

CHM151Y1

Chemistry: The Molecular Science

Prerequisite3 requirements, 3 options
Total contact hours72 lecture · 35 practical · 24 tutorial
Evidence3 terms · 1 syllabus · 2 papers
Add CHM151Y1 to Pyko

CHM151Y1

What do I need?

These are the weights from the syllabus we have. Yours might be a bit different depending on your term and instructor, so feel free to change anything that doesn't match.

AssessmentGrade %Weight %
%

You need 80.0% across the remaining 100% to finish at 80%.

What was the average?

B

3 GPA across 3 observed terms. Most recent: Fall 2025 - Winter 2026.

How is it graded?

4 components

From the 2024 syllabus. 4 graded components.

How confident is this?

Med

A small number of terms, so read it as a range.

From the calendar

Official source · Faculty of Arts & Science

An introduction to the major areas of modern chemistry, including organic and biological chemistry; inorganic/materials chemistry and spectroscopy; and physical chemistry/chemical physics. The course is highly recommended for students who plan to enrol in one of the chemistry specialist programs, or who will be including a substantial amount of chemistry in their degree (such as those following a chemistry major or minor program). The combination of CHM151Y1 and CHM249H1 serves as a full year introductory course in organic chemistry with laboratory. (Lab Materials Fee: approximately $40). Note: CHM151Y1 has a unique Course Community where the undergraduate experience in chemistry is greatly enhanced through a series of workshops, research seminars, tours, outreach opportunities and social activities. 90-minute biweekly Course Community meetings are held during laboratory class hours during alternate weeks to the laboratory sessions. The lab time is reserved for CHM151Y1 activities every week of each semester.

Exclusions
CHM110H5CHM120H5CHM135H1CHM136H1CHMA10H3CHMA11H3CHMB41H3
Contact hours
72 lecture · 35 practical · 24 tutorial
Total scheduled hours for the course, not per week.

One option from each line

Chemistry SCH4U

Mathematics MHF4U + MCV4U

Physics SPH4U recommended

What people actually got

Last observed Fall 2025 - Winter 2026
B

3 GPA

3 terms observed

n = 3student contributedSt. George offerings only

This is a student-contributed aggregate, not an official University of Toronto record. It is also not a measure of how hard the course is — a course average moves with who enrols in it, not only with the material.

Per-term figures stay hidden until each term clears five contributors. 3 observations can support one honest number; they cannot support 3.

Where the marks come from

2024 syllabus
Laboratory · 30%Term Tests (3) · 30%Examinations (2) · 30%Online Assessment (Quizzes (4)) · 10%

Extracted from a published 2024 syllabus and reviewed against the source document. Components that could not be labelled are shown unresolved rather than folded into a neighbouring category.

How well we know this course

2017–2024

Pyko’s archive holds 5 documents for CHM151Y1, across 3 years between 2017 and 2024.

2
Final exams
1
Handouts
2
Syllabi

Counts, not a library. Pyko does not host or distribute course files, and this page is not an offer to supply one — the archive is what lets these pages describe how a course is assessed.

What we don’t have yet

Per-term breakdownHeld back deliberately. Splitting 3 observations across terms would be false precision.
Instructor-level detailAverages are not split by instructor. At these sample sizes the difference between sections is noise, not signal.

Source ledger

Report an error →
Sources behind every claim on this page
ClaimSourceCapturedStatus
Course description, prerequisites, exclusions, contact hoursFaculty of Arts & Science2026-07-25public fact
Historical average across 3 termsStudent contributions, consented2026-07-25user contributed aggregate
Assessment weightingCourse syllabus, 20242026-07-25summary permitted
5 archived documents, 2017-2024Pyko archive2026-07-25index only

Page last verified 2026-07-25. A claim whose source moves is withdrawn before it goes stale.

What this opens up

26 courses list CHM151Y1 as a prerequisite

The other 9 have no page yet. Listing a course here means it names CHM151Y1 among its prerequisites — often as one of several ways to satisfy the same requirement, so this is what CHM151Y1 makes available, not what it alone guarantees.

Around this course

You’ve read the average. Now use it.

Add CHM151Y1 and the 2024 weighting loads with it — Pyko tracks what you've earned and solves for what the final has to be.

Pyko is an independent student platform. It is not affiliated with, endorsed by, or operated by the University of Toronto. Course names and codes are used descriptively to identify courses.

CHM151Y1 average & grade breakdown — UofT | Pyko