CH102 Postlab 02 Flame Tests

CH102 Postlab 02 Flame Tests - CH102 Postlab 02 Flame Tests

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CH102 Postlab 02 Flame Tests http://www.webassign.net/v4cgiracollin@ncsu/student.pl?p=20051. .. 1 of 6 11/15/2005 9:50 PM WebAssign.net Tuesday, November 15, 2005 09:50 PM EST Logged in as racollin@ncsu. Logout Home | My Assignments | Grades | Communication | Calendar Guide | Help | My Options Home > My Assignments > CH102 Postlab 02 Flame Tests (Postlab) COLLINS RYAN ALAN CH 102, section 051, Fall 2005 Instructor: robert wilcox TA North Carolina State University About this Assignment Due: Friday, September 2, 2005 11:00 PM EDT Current Score: 25 out of 25 Question Score Submissions Made: 4 out of 5 pts 1 -/0.14 2 -/0.14 3 -/0.14 4 -/0.15 5 -/0.15 6 -/0.14 7 -/0.14 8 -/0.14 9 -/0.14 10 -/0.15 View: All Responses Notes 1. Complete the following table. Remember, ions are charged particles. You will need the data from your lab notebook to enter the flame color. Special instructions for inputting chemical formulas! If you want to type a subscript in a chemical formula, just type the number. If you want to type a superscript for the charge, first type a carat (the ^ symbol) followed by a number and a + or - sign. Anything after the + or - sign will return to normal font. When grading ionic charges, WebAssign looks for the number first, then the sign (2- rather than -2). WebAssign will not show you subscripts and superscripts as you type. If you wish to look at your response in "chemistry font" (with subscripts and superscripts) before you submit, click on the icon next to the answer box. You are strongly urged to do so to make sure the formula looks right. Compound Chemical Formula Cation Present Anion Present Color of Flame Ion Responsible for Color barium chloride BaCl2 [BaCl2] Ba^2+ [Ba^2+] Cl^1- [Cl^1-] yellow-green [ yellow-green ] Ba^2+ [Ba^2+] barium nitrate Ba(NO3)2 [Ba(NO3)2] Ba^2+ [Ba^2+] NO3^1- [NO3^1-] yellow-green [ yellow-green ] Ba^2+ [Ba^2+] pts 1 -/0.14 2 -/0.14 3 -/0.14 2. Complete the following table. Note the instructions in the first question. Compound Chemical Cation Anion Color of Ion
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CH102 Postlab 02 Flame Tests http://www.webassign.net/v4cgiracollin@ncsu/student.pl?p=20051. .. 2 of 6 11/15/2005 9:50 PM 4 -/0.15 5 -/0.15 6 -/0.14 7 -/0.14 8 -/0.14 9 -/0.14 10 -/0.15 View: All Responses Notes Formula Present Present Flame Responsible for Color calcium chloride CaCl2 [CaCl2] Ca^2+ [Ca^2+] Cl^1- [Cl^1-] orange-red [ orange-red ] Ca^2+
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This note was uploaded on 04/13/2009 for the course CHEM 102 taught by Professor Zaowang during the Fall '08 term at N.C. State.

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CH102 Postlab 02 Flame Tests - CH102 Postlab 02 Flame Tests

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