Chemistry 103/113 Laboratory
	This Week
Answer Keys Gen Chem Lab Periodic Table	· Expt 3: Build a Better Hot Pack · Complete/Check Study Assignment E · Pick up Quiz 1 from TA folder o See the key
	Next Week
	· Expt 8: Stoichiometry by Spectrophotometry o NOT EXPT 4 · Quiz 2: Expt 2, Study Assignment C
	Notes for Today
	Safety Lecture II Build a Better Hot Pack · Tasks for Today o Assemble calorimeter, learn to use Logger Pro o Measure T change for various masses of CaCl2 § Graph T change vs. mass CaCl2 with Excel § Find mass CaCl2 needed to raise room temp water to 46 - 49^oC § Calculate Edissolving for CaCl2 (largest mass sample) o Design and test a hotpack · After lab o Statistical analysis of class Edissolving § Reference: Study Assignment B The Calorimeter When CaCl2 is Added to Water The Temperature-Time Plot · What other information belongs on the plot? Expt 3 Report · Purpose, Procedure, Data section due today at end of lab · See Writing Your Report for remaining requirements o Obtain all graphs/Temp-time plots before leaving today. o Work independently on calculations/questions o Organize report sections as outlined in Writing Your Report · Due tomorrow, 9 p.m., TA folder outside 184 · Student Data