Thursday, 9 April 2015

homework - How to calculate molality, molarity and mole fraction given density (g/mole)?


Calculate the molality, molarity and mole fraction of a $\ce{CuSO4}$ in a 17% m/m aqueous solution (density of the solution is 1.367 g/mole)



I did .17 * 1.367 to find grams of $\ce{CuSO4}$


and .83 * 1.367 to find grams of $\ce{H2O}$


Then used to them calculate:


molarity = 0.00146 M


molality = 1.287 m


Mole fraction = 0.023


I'm wondering if I'm doing it right?




No comments:

Post a Comment

readings - Appending 内 to a company name is read ない or うち?

For example, if I say マイクロソフト内のパートナーシップは強いです, is the 内 here read as うち or ない? Answer 「内」 in the form: 「Proper Noun + 内」 is always read 「ない...