Tuesday, January 12, 2016
Weekly Quiz
This weeks quiz was both hard and easy. There were many questions I felt 100% confident about, however, there were also many I was uneasy about. I need to review how to read solubility graphs when the amount of water used on the graph does not match the amount of water in the question that is being asked. I hope the grades get put in soon, so I know what I got!
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I just took the quiz today and I completely agree with you. Some of the problems were easy because they didn't really ask for much more than "plug and chug" or they were in the practice tests. However, some of the other questions were confusing because we had never seen ANYTHING like them before. There was also one problem that I'm a little mad that I missed because if I'd looked at the picture, I would've gotten it right. As for how to read solubility graphs where the amount of water is different, I wrote it up as a proportion. For example, if you could dissolve 20g of X in 100g of water, but you have 200g of water, then I would do 20gX/100gH2O=?gX/200gH2O. I don't know if that is how you're actually supposed to do it, but I know that it got me the right answer on those questions.
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