This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: wetsel (zpw67) Postlab 1 Measurement lyon (51900) 1 This printout should have 28 questions. Multiplechoice questions may continue on the next column or page find all choices before answering. 001 (part 1 of 4) 10.0 points Calculate 720 . 0 + 5 . 4 10 2 117 . 064 and report the result using the correct number of significant digits. Your answer must be within 0.0% 002 (part 2 of 4) 10.0 points Calculate . 834 52 . 48 . 09 2 . 51 and report the result using the correct number of significant digits. Your answer must be within 0.0% 003 (part 3 of 4) 10.0 points Calculate 374 . 82 15 . 74 3 and report the result using the correct number of significant digits. Your answer must be within 0.0% 004 (part 4 of 4) 10.0 points Calculate 2516 . 32 1 . 13 10 4 6 . 00 + 8 . 7 10 2 684 . 2 . 0030 and report the result using the correct number of significant digits. Your answer must be within 0.0% 005 10.0 points What is a chemical change? 1. oxygen produced from the breakdown of nutrients 2. melted ice cream 3. erosion of rock by the wind 4. sugar cube dissolved in water 006 10.0 points Standard deviation is a measure of the scatter in the data. Does a small value for stan dard deviation indicate high precision or low precision? 1. high precision 2. low precision 3. Cannot determine from the information given....
View
Full
Document
This note was uploaded on 07/18/2011 for the course CH 204 taught by Professor Leytner during the Spring '08 term at University of Texas at Austin.
 Spring '08
 leytner

Click to edit the document details