All Teachers Assistants(TAs) and professors have office hours, however the chemistry and math department take it one step further and have designated rooms that are staffed with TAs most of the day.

The Math department has the math center located on the mathematics building (very easy to remember) in room(s) 107/110. It’s staffed continuously from 9am to 4pm Monday through Friday and it can help with most undergraduate math classes. However note that it starts 2 weeks after the start of each semester. Link: https://www.buffalo.edu/cas/math/ug/math-help.html.

Chemistry 101, 102, and 105 through 108 are all considered ‘general chemistry’(there the introductory courses, you need to take 107 if you are a computer engineer). They have a help center in the natural sciences complex. This center replaces TA office hours for those courses and is generally open from 9am to 5pm, Monday through Friday(and sometimes for a couple hours on the weekend) depending on how the TAs decide to setup the schedule that semester. It starts a week or two after the start of the semester and ends the week before finals week.

In general having a TA explain a concept to you is a far faster and accurate way of learning it then researching it online so take advantage of these centers when you can.