Unformatted text preview: ) K2CO3 CaCO3 (s) + KCl (aq) Filtration Filtrate KCl (aq) Residue CaCO3 (s) CaCl2 (aq) + K2CO3 (aq) CaCO3 (s) + 2 KCl (aq) OR Ca2+ (aq) + CO32 (aq) CaCO3 (s)
Spring 2007 Reporting your Data Report either your own results or the average values derived from the joint effort of a group of students including yourself You can mix and match You cannot report somebody else's data Spring 2007 Outliers
Q test helps you to decide whether to retain or reject a questionable point within a given set of data (see Appendix 1 for details) Q calculated = gap range gap = | xsuspect xnear | range = xmax xmin Compare Qcalculated to Qtable: If Qcalculated > Qtable, the questionable point should be rejected. If Qcalculated < Qtable, the quest...
View Full Document
- Spring '08
- Chemistry, Sodium chloride, SiO2, Calcium carbonate, magnetic stirring bar