A solution is prepared by dissolving 24. 7 g of cacl2 in 375 g of water. The density of the resulting solution is 1. 05 g/ml. The concentration of cacl2 is % by mass.

with such great emphasis put on the act and sat exams—the studying, the review sessions, taking the test, retaking the test, scholarships dependent on scores, etc.—many think the scores are the be all end all of college applications. if you have a high score, you can get into any college you want. if you have a low score, you’re doomed.