Penn state senior year grades

I have been admitted to penn state for engineering and am wondering about senior year grades. Thru 3 quarters I have a 4.2 gpa (applied with a 3.97) but 4th quarter they may drop because of exams and dince it is the most difficult quarter for most of my classes. I’m taking ap stats ap chem ap bio ap econ English 12 and gov. If I were to end w a C in ap chem would that be worrisome to colleges? (All other grades would be A’s and B’s). Also does penn state look at senior year grades?

No, they only care that you graduate. One C will not be a problem at all.