When preparing aqueous solution of CuSO4 students A and B weighed the pentahydrate salt CuSO4x5H2O. For calculation of molarity of their solutions student A used molar mas of the pentahydrate salt while student B used the molar mass of the anhydrous salt CuSO4. Student C said it does not matter whether we use molar mass of the pentahydrate salt or of anhydrous salt. Which of these 3 students was right

How does litmus paper indicate an acid?

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

What’s the percent by mass of carbon in c10h14n2