CH 101s - HW 10

CH 101s - HW 10 - CH 101s - HW 10 12/17/09 9:35 PM...

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12/17/09 9:35 PM CH 101s - HW 10 Page 1 of 6 http://www.webassign.net/v4cgimhborges@ncsu/student.pl?y=20091218023422mhborges@ncsu651901998 Michelle Borges CH101, section 002, Fall 2009 Instructor: Ana Ison 1. 7.5/7.5 points 1/5 submissions Notes Web Assign CH 101s - HW 10 (Homework) Current Score : 100 / 100 Due : Wednesday, November 18, 2009 06:00 PM EST About this Assignment Extension Requests Question Points 1 2 3 4 5 6 7 8 9 7.5 7 12 12 2 21 6 24.5 8 Total 100/100 Description Instructions You will need the following tables Polyatomic ions Solubility rules The due date for this assignment is past. Your work can be viewed below, but no changes can be made. What is the total concentration of all ions (the sum of their individual concentrations) in aqueous solutions of the following? Hint: Each substance is an electrolyte that dissociates in water to produce ions. Use a table of polyatomic ions if you do not recognize the polyatomic ion. For example, Na 2 SO 4 -> 2Na 1+ + SO 4 2- when it dissolves, so a 1 M soln of Na 2 SO 4 is 2M in Na 1+ and 1M in SO 4 2- and the total concentration of ions is 2 M + 1 M = 3M. 0.0340-M NaCl .068 0.0680 M
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12/17/09 9:35 PM CH 101s - HW 10 Page 2 of 6 http://www.webassign.net/v4cgimhborges@ncsu/student.pl?y=20091218023422mhborges@ncsu651901998 2. 7/7 points 5/5 submissions
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CH 101s - HW 10 - CH 101s - HW 10 12/17/09 9:35 PM...

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