ECON 102 Midterm: ECON 102 UW Madison 1 ExamwithSolutionsSpring2011saad
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Please state any additional assumptions you made, and show all work. You are welcome to use a graphical method of solution if it is appropriate. Mark each one of the following statements with either a. A nano gram is equivalent to one-thousanths of a milligram. The third most common gas in the atmosphere is argon. Non-carbonate hardness only exists in waters with alkalinities less than than their total hardness. Mass defects are directly proportional to nuclear binding energy. The guntelberg approximation says that activity coefficients are dependent on charge and ionic strength, but not on ion size. The reactivity of neutral species is unaffected by changes in ionic strength. Increases in ionic strength cause a increase in the pka of an acid, if the fully-protonated form of the acid is an uncharged species. The standard assumption used for calculating the ph of buffer solutions is that [h+] and [oh-] are negligible.
