Schools / University of California, Santa Barbara
CHEM 109B
Fall 2009 – Summer 2026 (54 terms) · 17,232 students · Source:
The curve
Share of all students who received each grade, all terms combined.
20.4%
of students got an A
0.0% withdrew
A rate by term
Share of students who got an A in each term the course ran.
By term, newest first
ABCDFWOther
TermStudentsA rate / distributionGPASource
Summer 2026106
19.8%
—University of California, Santa Barbara grade distribution file, Winter 2026, Spring 2026, Summer 2026Spring 2026398
21.6%
—University of California, Santa Barbara grade distribution file, Winter 2026, Spring 2026, Summer 2026Winter 2026487
28.7%
—University of California, Santa Barbara grade distribution file, Winter 2026, Spring 2026, Summer 2026Summer 2025101
12.9%
—University of California, Santa Barbara grade distribution file, Winter 2025, Spring 2025, Summer 2025, Fall 2025Spring 2025383
12.8%
—University of California, Santa Barbara grade distribution file, Winter 2025, Spring 2025, Summer 2025, Fall 2025Winter 2025584
25.2%
—University of California, Santa Barbara grade distribution file, Winter 2025, Spring 2025, Summer 2025, Fall 2025Summer 2024125
12.8%
—University of California, Santa Barbara grade distribution file, Winter 2024, Spring 2024, Summer 2024, Fall 2024Spring 2024342
5.6%
—University of California, Santa Barbara grade distribution file, Winter 2024, Spring 2024, Summer 2024, Fall 2024Winter 2024592
28.9%
—University of California, Santa Barbara grade distribution file, Winter 2024, Spring 2024, Summer 2024, Fall 2024Summer 202343
14.0%
—University of California, Santa Barbara grade distribution file, Winter 2023, Spring 2023, Summer 2023, Fall 2023Spring 2023299
6.7%
—University of California, Santa Barbara grade distribution file, Winter 2023, Spring 2023, Summer 2023, Fall 2023Winter 2023567
23.1%
—University of California, Santa Barbara grade distribution file, Winter 2023, Spring 2023, Summer 2023, Fall 2023Fall 202228
10.7%
—University of California, Santa Barbara grade distribution file, Winter 2022, Spring 2022, Summer 2022, Fall 2022Summer 202220
10.0%
—University of California, Santa Barbara grade distribution file, Winter 2022, Spring 2022, Summer 2022, Fall 2022Spring 2022254
10.6%
—University of California, Santa Barbara grade distribution file, Winter 2022, Spring 2022, Summer 2022, Fall 2022Winter 2022599
12.7%
—University of California, Santa Barbara grade distribution file, Winter 2022, Spring 2022, Summer 2022, Fall 2022Fall 202177
29.9%
—University of California, Santa Barbara grade distribution file, Winter 2021, Spring 2021, Summer 2021, Fall 2021Spring 2021197
18.8%
—University of California, Santa Barbara grade distribution file, Winter 2021, Spring 2021, Summer 2021, Fall 2021Winter 2021784
39.8%
—University of California, Santa Barbara grade distribution file, Winter 2021, Spring 2021, Summer 2021, Fall 2021Fall 202053
22.6%
—University of California, Santa Barbara grade distribution file, Winter 2020, Spring 2020, Summer 2020, Fall 2020Summer 202072
15.3%
—University of California, Santa Barbara grade distribution file, Winter 2020, Spring 2020, Summer 2020, Fall 2020Spring 2020306
59.2%
—University of California, Santa Barbara grade distribution file, Winter 2020, Spring 2020, Summer 2020, Fall 2020Winter 2020609
37.8%
—University of California, Santa Barbara grade distribution file, Winter 2020, Spring 2020, Summer 2020, Fall 2020Fall 2019119
16.8%
—University of California, Santa Barbara grade distribution file, Winter 2019, Spring 2019, Summer 2019, Fall 2019Spring 2019340
20.0%
—University of California, Santa Barbara grade distribution file, Winter 2019, Spring 2019, Summer 2019, Fall 2019Winter 2019541
19.2%
—University of California, Santa Barbara grade distribution file, Winter 2019, Spring 2019, Summer 2019, Fall 2019Fall 2018132
9.1%
—University of California, Santa Barbara grade distribution file, Winter 2018, Spring 2018, Summer 2018, Fall 2018Spring 2018321
19.0%
—University of California, Santa Barbara grade distribution file, Winter 2018, Spring 2018, Summer 2018, Fall 2018Winter 2018542
20.5%
—University of California, Santa Barbara grade distribution file, Winter 2018, Spring 2018, Summer 2018, Fall 2018Fall 2017181
18.8%
—University of California, Santa Barbara grade distribution file, Winter 2017, Spring 2017, Summer 2017, Fall 2017Spring 2017410
16.6%
—University of California, Santa Barbara grade distribution file, Winter 2017, Spring 2017, Summer 2017, Fall 2017Winter 2017610
16.7%
—University of California, Santa Barbara grade distribution file, Winter 2017, Spring 2017, Summer 2017, Fall 2017Fall 2016156
22.4%
—University of California, Santa Barbara grade distribution file, Winter 2016, Spring 2016, Summer 2016, Fall 2016Spring 2016328
20.7%
—University of California, Santa Barbara grade distribution file, Winter 2016, Spring 2016, Summer 2016, Fall 2016Winter 2016625
18.7%
—University of California, Santa Barbara grade distribution file, Winter 2016, Spring 2016, Summer 2016, Fall 2016Fall 2015176
18.8%
—University of California, Santa Barbara grade distribution file, Winter 2015, Spring 2015, Summer 2015, Fall 2015Spring 2015371
19.1%
—University of California, Santa Barbara grade distribution file, Winter 2015, Spring 2015, Summer 2015, Fall 2015Winter 2015713
18.4%
—University of California, Santa Barbara grade distribution file, Winter 2015, Spring 2015, Summer 2015, Fall 2015Fall 2014167
19.2%
—University of California, Santa Barbara grade distribution file, Winter 2014, Spring 2014, Summer 2014, Fall 2014Spring 2014311
15.1%
—University of California, Santa Barbara grade distribution file, Winter 2014, Spring 2014, Summer 2014, Fall 2014Winter 2014685
16.9%
—University of California, Santa Barbara grade distribution file, Winter 2014, Spring 2014, Summer 2014, Fall 2014Fall 2013119
15.1%
—University of California, Santa Barbara grade distribution file, Winter 2013, Spring 2013, Summer 2013, Fall 2013Spring 2013288
16.3%
—University of California, Santa Barbara grade distribution file, Winter 2013, Spring 2013, Summer 2013, Fall 2013Winter 2013575
13.2%
—University of California, Santa Barbara grade distribution file, Winter 2013, Spring 2013, Summer 2013, Fall 2013Fall 2012130
13.8%
—University of California, Santa Barbara grade distribution file, Winter 2012, Spring 2012, Summer 2012, Fall 2012Spring 2012234
14.1%
—University of California, Santa Barbara grade distribution file, Winter 2012, Spring 2012, Summer 2012, Fall 2012Winter 2012507
20.3%
—University of California, Santa Barbara grade distribution file, Winter 2012, Spring 2012, Summer 2012, Fall 2012Fall 2011147
13.6%
—University of California, Santa Barbara grade distribution file, Winter 2011, Spring 2011, Summer 2011, Fall 2011Spring 2011247
15.8%
—University of California, Santa Barbara grade distribution file, Winter 2011, Spring 2011, Summer 2011, Fall 2011Winter 2011548
16.8%
—University of California, Santa Barbara grade distribution file, Winter 2011, Spring 2011, Summer 2011, Fall 2011Fall 2010159
10.7%
—University of California, Santa Barbara grade distribution file, Winter 2010, Spring 2010, Summer 2010, Fall 2010Spring 2010196
16.8%
—University of California, Santa Barbara grade distribution file, Winter 2010, Spring 2010, Summer 2010, Fall 2010By instructor, highest A rate first
ABCDFWOther
Terms taught
13 instructors. Select a name's terms to see each term separately.