Tuesday October 25th, 2011

SNC 2D
1. Label microscope diagram on back side of "The Microscope"- Intro to proper care & use of the microscope.
2. Measure FDlow (low power field diameter).  Write this on to the front of the worksheet.
3. Magazine Activity.  View small pieces of coloured paper from a magazine.  Draw the pattern of which they are composed.  Hand in at least 3 drawings with the piece of paper taped beside the drawing.

SCH 3U
Neutralization Activity: 1. Take 10mL of 1M HCl.  2. Neutralize with an unknown concentration of NaOH until neutral. 3. Show the teacher that your solution is neutral.  4. Collect the NaCl.  5. Mass the NaCl.
Questions: 1. Show the balanced chemical equation.
2. Determine your % yield. 
Helpful info:
1 mol of NaCl has mass 58.44g so 1L of 1M HCl can produce 58.44g NaCl.
If 1L makes 58.44 g
Then 0.010L makes x g.  (most students used 10mL = 0.010L.  If you did not, use the appropriate volume)
3. Explain some likely reasons why your % yield is not 100%.
4. Try to determine the Concentration of the "Unknown" NaOH.  Include an explanation and possibly a calculation.