It can really vary, so your best bet is to look at her chosen school's website. I'm not trying to blow you off--her first year, my oldest was put in specialty housing to fill an empty bed. It was very different from a standard dorm room. One school she looked at, the freshman dorms had a general-use kitchen in the basement, where anyone could go in and, say, make a batch of cookies (obviously, you needed to clean up after yourself). My DD is currently a senior, and this year she's in an apartment that has a washer/dryer in it. At her school, the only type of microwave allowed is a special fridge/microwave combo that they rent out--you can't just bring one from home. DD actually won a dorm fridge at a senior event in HS, and has never used it at school.
My general advice would be "less is more". You can always buy stuff later, if need be, but if she has too much, she has to store it/trip over it all year. It also helps to coordinate with her roommate--maybe one buys a rug, the other buys a vacuum, that kind of thing.