Chem 3A Pedersen

<p>I was looking at the Fall 2013 schedule and I noticed that Pedersen isn't listed as an instructor for Chem 3A this fall; instead Robak is teaching. Is this true? I was really looking forward to having Pedersen on account of the great things I've heard about him. If its true, can anyone give me an idea of what to expect with Robak?</p>