I am teaching high school science, including Chemistry. One of the things that I do, is for the low-stakes assignments we grade them in class together. I date stamp everything (and scan it) to make sure it is completed and then we go over the correct answers. Then, they have to turn them in to me so that I can put them in the grade book. I check to make sure they really corrected their answers. If they did not, then they get a zero. This takes up some class time, but it helps them solidify their understanding.
For mid-stakes, I correct and then hand back, giving them the option to make corrections for more points. This cut down a lot on my daily grading. I am really only entering in the grade and doing a quick scan. Plus, they get immediate feedback. Studies show that the sooner the feedback, the better the learning.
NOW, if you're not the one interacting with them and you're only doing the grading you're kind of out of luck. As one of my fellow teachers said, "If it wasn't for all the grading teaching would a pretty easy job". Take comfort in knowing that it doesn't last forever.