Lec3 - WRITTEN “CLICKER” QUESTION(WCQ#1 Name Section...

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Unformatted text preview: WRITTEN “CLICKER” QUESTION (WCQ) #1 Name_________________ Section _________ Find Section: (1311 at 11 am in PHY1402; 1312 at 12 pm in PHY1402; 1313 at 2 pm in CHM1224) QUESTION: Calculate the density of a metal block in g/cm 3 if the mass of the block is determined to be 32.7682 g using an electronic balance and the volume of the metal block determined by the amount of water it displaces as follows: #1 #2 24.0 mL 29.0 mL NOTE: Water volumes in figure above are not representative of the actual data collected and documented below: (#1) The volume of water in a graduated cylinder is measured to be 24.0 mL. (#2) The metal block is then immersed in the water and the volume of the water in the graduated cylinder is measured to be 29.0 mL. Announcements • OWL help sessions in OWL Computer Lab (CHM3222) through February 15 • Register your “clicker” on Blackboard (select “tools”) • First recorded Clicker Quiz Tues., Feb. 12. • E-mail Dr. Johnson ( [email protected] ) if you are not getting course e-mail messages • Dr. Johnson’s office hours: W & Th 1-2pm in CHM1102A • Greg Beachley’s office hours: W 4-5 pm in CHM1115 Computer Assistance • UMD OIT Helpdesk Computer & Sciences Building, room 1400 301-405-1400 ( http://www.helpdesk.umd.edu ) • UMD OIT ( http://wwwoit.umd.edu ) Assignments • Read: (Ch 1&2) for Thurs: Ch 3.1-3.5 • Written Homework for Discussion Class on 2/6: WHW 1a (Ch 1) & 1b (Ch2) • OWL HW1: due 8 am, Mon. 2/11 • Register clicker Check Course Schedule Regularly Find on Course Webpage: Fundamentals of General Chemistry CHEM131:13xx Spring 2008 Dr. S. Johnson Instructor Mr. Greg Beachley Teaching Assistant Tuesday and Thursday, 3:30-4:45 pm, CHM1402 Lecture Class 3 Outline • Test clickers • Written Clicker Quiz #1 • Recap of last week • Lecture on rest of Chapter 2: 2.4-2.8 Get ready for a clicker question!! Complete the following calculation: (Assume all numbers are measured values.) (273.25 – 245.3) x 1.818 = 1. 27.95 2. 50.8131 3. 50.8 4. 50.81 WRITTEN “CLICKER” QUESTION (WCQ) #1 Name_________________ Section _________ Find Section: (1311 at 11 am in PHY1402; 1312 at 12 pm in PHY1402; 1313 at 2 pm in CHM1224) QUESTION: Calculate the density of a metal block in g/cm 3 if the mass of the block is determined to be 32.7682 g using an electronic balance and the volume of the metal block determined by the amount of water it...
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This note was uploaded on 04/29/2008 for the course CHEM 131 taught by Professor ... during the Spring '08 term at Maryland.

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Lec3 - WRITTEN “CLICKER” QUESTION(WCQ#1 Name Section...

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