CHEM 1560 INTRO TO GENERAL CHEM Cornell

NAME . KEY CHEMISTRY 206 Summer 2007 Monday, July 9, 2007 8:30 a.m. -10:00 a.m. PRELIMINARY EXAM #1 Please do not open this exam booklet until you are told to do so. You will have 90 minutes to complete the exam. Please show your work for full cred

Erxn=Eproducts-Ereactants; Reaction rate-k[concentration] Ex) What is order of reaction k[A][B]3 with respect to A,B, and overall? Ans) A=1, B=3, overall= 4 Ex) A kinetics experiment on reaction bB+cCdD yielded data shown below. Exp [B] [C] Rate m/se

NAME . KEY CHEMISTRY 206 Summer 2007 Monday, July 9, 2007 8:30 a.m. -10:00 a.m. PRELIMINARY EXAM #1 Please do not open this exam booklet until you are told to do so. You will have 90 minutes to complete the exam. Please show your work for full cred

Abstract: The purpose of this experiment was to prepare a complex iron salt and analyze it to determine its identity. The methods that were used were to obtain necessary amounts of compounds in their required flasks to induce the desired reactions. T

Results and Discussion: In this experiment, alum [KAl(SO4)212H2O] was synthesized from aluminum. The theoretical yield of the experiment was 23 g. A sample of 1.313 g of aluminum was reacted with 65.5 mL of 1.4 M KOH. The reaction used was 2Al(s)+ 2K

Assignment #2 Chapter 4 The Language of Chemistry Date Due: 2/9/07 Chemistry 106 2. Consisting mostly of very small water droplets d. Aerosol 4. A mixture of smoke, fog, air, and various other chemicals h. Smog 6. Second most abundant gas in the

Prelim 1 (Wks 1-6) Significant Figures Counting: 1. All nonzero digits are significant. 2. Zeroes to the left of the first nonzero digit are not significant. 3. Zeroes at the end of a number that includes a decimal point are significant. Addition an