He tries very hard to help. Easy grading 80% = 4.0

He really knows how to teach but his exams are really hard!!!!!!!

Instead of complaining use his knowledge !!!

If you enjoy an educational challenge he's the professor to take. You'll learn a lot if you try hard, but don't take a lighter load when you take this. You'll need the extra study time.

This man will rock your a**. Be ready to put in 12 hours a week. The key to a good grade is attempting every problem in the book. Even if you're in the ball park on a test question you'll get partcial credit.

Dr. Dembinski is an excellent professor. He is thoroughly knowledgeable about his material and is more than willing to help anyone who asks. True he makes his exams challenging but the end result is that if you study hard for his exams you will do very well on the MCAT and following courses.

I had him for Organic 2 and I think that he is a great teacher. He will do anything to help you out,including extra lectures on the weekends. I found his quizzes very helpful, and his exams are not hard at all if you do your homework.

Dr. Dembinski is awesome. Yes, he is very difficult and it requires hard work. However, people who take this class are mostly going into the health science field. Becoming a doctor is hard work, this could be your time to get used to it.

He is a very good professor. If you do the problems in the back of the book and know his lectures notes, his exams are not impossible. He has a huge curve and takes most of the questions from the back of the book and his lecture notes.. Great guy

This is a hard class no matter the professor. he did a good job explaining things, and his metaphores are GREAT! I'm glad i took this class with him.

Difficult class-prof expects that you know detailed info about topics covered in book and in lecture. Tests are very challenging. Do all the problems in the book but be ready for the unexpected on the exams. Do well on quizzes-they may help your grade in the end. I learned a lot but spent at least 10-15 hours/week on this class. Good luck!

He's not as bad as everyone is saying... YOU are expected to do 95% of the work, come to class prepared, and only rely on him to use lecture to clarify things you've already read, or office hours to discuss specific topics. Tests cover EVERYTHING... Very demanding class overall.

Very demanding but isn't that why you are in college. You must put in a lot of time to get a good grade, but you WILL KNOW the material, not just memorize for testing.

Dr.Debenski is one of the best professors here at OU, true he is difficult but its a hard class and you need to know the materials either for chemistry majores of for the MCAT. he has a huge curve at the end, if you know what are you doin its not impossible to get a 4.0

Orgo is a difficult class no matter who you take. I recommend going to lecture: he usually tests on the stuff he talks about in class. I studied 10 hours a week, did the practice problems and got a 4.0; so it's not impossible. You have to put in the time and effort. After Dembinski i feel I can do well in any class i take. Good Luck :)

Dembinski is one of my favorite professors! Most helpful professor I have ever had. Tests are difficult, but he gives weekly quizzes which count as extra credit. I studied about 12 hours/week and got a 4.0 so it's not impossible. If you are a premed/pharm student TAKE HIS CLASS. He makes sure you master the material.

Great prof. Explains what he is teaching and keeps you entertained with his jokes. Would recommend his class. Great guy.

At first hard to understand but extremely helpful. He's always available even came to school on the weekend. The class is VERY DIFFICULT and the test are somewhat impossible. (KNOW MECHANISMS) However, taking this class has made me an organic chemistry pro and I hate chemistry! The MCAT organic chemistry section was easy because I took him.

He was a good teacher. First time he taught Chem 104, he had trouble making it easier to understand but he did help a lot. He sent out study guides for the final exams, and was always available for questions. I loved him as a person and He did a good job teacher. He also curved the exams a lot. He made the class fun to come to!

Roman is the best professor I have ever had. He makes chemistry pleasant and enjoyable. His analogies make perfect sense, and he inspires me to be all that I can be.

Easy class

Just finishing his Orgo 2 class right now. I'm not sure why he has such bad ratings on here. He is my favorite professor at OU! He's very nice and helpful, and if you go to his office hours, he'll get to know you. Orgo 2 is not a cakewalk, so it's not his fault if you don't get the grade you want. Do LOTS of problems. Partial credit is given too.

It's not AS bad as people say, and it's very doable without killing yourself studying. My advice is this; don't blow off the quizzes. He makes them sound marginal, but he makes them all extra credit, and by the end it really ads up. For our class we had almost 100 points of extra credit in quizzes... That's a full exam, and 400/500 is a 4.0...

Great Prof. Easy class

The quizzes were xtra credit which saved me. 90% of test questions came from the homework and examples in the book. Don't wait till last minute to study and you will 4. He is funny, very helpful, and wants you to succeed. Has an accent but is still understandable. Highly recommended

I had him for Orgo 1 and now i'm taking him for Orgo 2. Tough class but great professor. I usually can't sit through a lecture but he's funny so it's not too bad. Take him!

Great teacher, quizzes are extra credit... read the book do the problems i got a 3.7 in the class.. hell always be there to help you

Easily the best chem instructor I have had. Funny, interesting, very helpful (great office hours), gives extra credit. Partial credit is abundant if you study and actually write something. You can also go and argue points back (he won't take any away). He genuinely wants you to learn the material. Take his class, you will learn something.

This is a very challenging course. Go to class, there are pop quizzes that contribute to your grade. Dr. Dembinski is an awesome person. This class requires much self motivation and practice alone. Buy the textbook and solution manual, they are essential for success. Do EVERY PROBLEM in the textbook, they often show up on exams.

He has a great sense of humor and is very approachable in class and in his office hours. He gives weekly pop quizzes which serve as extra credit at the end of the semester; however, the tests are challenging and written. They require a lot of practicing questions at the end of the chapter. Give yourself time in advance to study.

You really have to work for a good grade in this class. I read every chapter and did every problem in each chapter as well as made flashcards and studied almost daily and still got in the 80s on the exams and an 80 on the final. This is not a class you can cram for but he makes that clear. Quizzes are extra credit and pretty easy, be prepared.

This is already a very challenging class and taking it during the summer did not make it any easier. Going to class and doing ALL the book problems are keys to success! The exams are very heavily based on the book, and often there will be exact problems on the exam. Put in the work and you should do well. A challenging but not an impossible class.

Dr. Dembinski is highly knowledgeable. If you are looking for an easy A do not take him; however, if you are trying to really learn the material for the MCAT,PCAT,OAT,DAT, etc, then consider Dr. Dembinski. Taking him in the summer if difficult and I would not recommend it unless you are a good student. Difficult class but feasible to do well.

This professor is a total genius! Premeds who want to do well on the MCAT i suggest you take him. This is not an easy course but if you actually wanna understand and learn the material, take him. His grading scale doesn't make it too hard to get a decent grade plus 95% of the problems on the exams are from the textbook, SO DO EVERY PROBLEM!

Taking this professor made more serious in my academic career. He basically pulls problems/figures from the book and puts them on the test. His lectures are very clear. If you are someone who is intelligent and can memorize/apply lecture information really well, there is no need to do all of the book problems. Take this class with him and study.

Organic Chemistry is difficult. It involves doing a lot of homework to understand concepts and additional memorization of chemical reagents and structures. Thats the class, not the teacher. Dr D is very accessible and his lectures always contain interesting information about the reagents/products. His exams are mostly straight from the book.

Chemistry is a second language to this man. He is fluent, brilliant, and comfortable in chemistry. He adds humor to his lectures that feigns you've got this. Study your appropriate word here ass off. You're smart, so be smart.

Good teacher with some humor in the lectures. Exams were right from the book problems. Yes, the more difficult ones at the end, but still, they are RIGHT THERE in the book. So do a couple easy ones and then jump to the harder ones. And if you cant do them, go see him for help, he seems happy to help.

All these reviews are reviewing the class not Dembinski. The class is hard, but the professor is amazing. He tries to be funny during lectures and his lectures are very helpful. You have to read the book and the 3 tests are difficult. But it isn't impossible to do well in the class. You also have extra credit pop quizzes. 11/10 Demb is a God.

Dr. Dembinksi is brilliant, kind, and he cares about his students. Orgo 2 is hard, so you need to put in a lot of work in order to do well. That said, his lectures are actually helpful and he is available in office hours to help. He is funny. Pop quizzes (mostly extra credit). Read the book and do book problems. Exams are straight forward. Study!

This class is challenging, however there are a lot of chances for extra credit. READ the book and do ALL questions in the chapter and at the end of the book. He is nice and funny. It is possible to do well!

His lectures are great, as he explains things well, and he is very funny and kind. He is ALWAYS in his office and more than willing to help. Was very adaptable and understanding with the transition to online due to COVID19 400pts is an A. Doesn't matter how you get there so quizzes are essentially extra credit. DO EVERY SINGLE BOOK QUESTION.

Dembinski is a nice person but you definitely have to do a lot of practice homework and reading on your own. He expects a lot from students and you really have to know the material to do well on the exams. His lectures aren't insanely important but can be helpful if you read the chapter first and then go to class.

Awesome and hilarious guy. Curved pretty hard but waited until after the final so did not know exactly what grade I would get. 4 exams and that's it. 1st was free response but average was so bad the rest were MCQ. Final was ACS exam. Does lecture by projecting handwritten notes. I recommend reading the book and going to SI, but I personally didn't

Organic Chemistry will always be hard. Study the book and go to office hours with questions. Dembinski is very friendly and really knows his stuff. Lectures are boring, but its chemistry. Good prof. O Chem sucks.

Dembrinski is great as a supplement to your learning. In other words, if your first contact with the material is his lectures, you're already behind. Read the book and conceptualize ideas before coming to class.Generally speaking, with a class of this caliber, the work you put in is directly related to your results. An A is certainly achievable.