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  1. Print the notecards
  2. Fold each page in half along the solid vertical line
  3. Cut out the notecards by cutting along each horizontal dotted line
  4. Optional: Glue, tape or staple the ends of each notecard together
  1. Verify Front of pages is selected for Viewing and print the front of the notecards
  2. Select Back of pages for Viewing and print the back of the notecards
    NOTE: Since the back of the pages are printed in reverse order (last page is printed first), keep the pages in the same order as they were after Step 1. Also, be sure to feed the pages in the same direction as you did in Step 1.
  3. Cut out the notecards by cutting along each horizontal and vertical dotted line
To print: Ctrl+PPrint as a list

14 notecards = 4 pages (4 cards per page)

Viewing:

Results for Thin Layer Chromatography (ONLINE) SD

front 1

What was color of F e3+ before staining?

  • Colorless
  • Faint yellow
  • Faint pink
  • Faint blue

back 1

Faint yellow

front 2

What was color of A g+ before staining?

  • Faint yellow
  • Colorless
  • Faint blue
  • Faint pink

back 2

Colorless

front 3

What was color of B i3+ before staining?

  • Faint blue
  • Faint yellow
  • Colorless
  • Faint pink

back 3

Colorless

front 4

What was color of C o2+ before staining?

  • Colorless
  • Faint blue
  • Faint yellow
  • Faint pink

back 4

Faint pink

front 5

What was color of C u2+ before staining?

  • Faint blue
  • Faint pink
  • Colorless
  • Faint yellow

back 5

Faint blue

front 6

What was color of F e3+ after staining?

  • Burgundy/Brown
  • Greyish
  • Blue

back 6

Blue

front 7

What was color of A g+ after staining?

  • Greyish or faint yellow
  • Blue
  • Burgundy/Brown

back 7

Greyish or faint yellow

front 8

What was color of B i3+ after staining?

  • Blue
  • Greyish/Yellow/Orange
  • Burgundy/Brown

back 8

Greyish/Yellow/Orange

front 9

What was color of C o2+ after staining?

  • Burgundy/Brown
  • Greyish
  • Blue

back 9

Greyish

front 10

What was color of C u2+ after staining?

  • Blue
  • Greyish
  • Burgundy/Brown

back 10

Burgundy/Brown

front 11

What were the approximate Rf of the cations on the completed plate? Please use student data.

back 11

Rf Calculations of Cations:

Rf of Ag^+ = 0.0009

Rf of Co^2+ = 0.384

Rf of Cu^2+ = 0.512

Rf of Fe^3+ = 0.705

Rf of Bi^3+ = 0.876

Rf Calculations of Unknown Cation Mixture:

Rf of Unknown Cation Spot 1 = 0.0009

Rf of Unknown Cation Spot 2 = 0.386

Rf of Unknown Cation Spot 3 = 0.877

front 12

Show how one of the Rf values was obtained. (Show work with short verbal descriptions of numbers.) Please use Student Data.

back 12

Rf of Ag^+ = 0.01 cm (distance cation moved) / 11.00 cm (distance solvent moved) = 0.0009

front 13

Consider the slide pictured below. What ions are present in the unknown solution?

Screen Reader User: Image: Rectangular plate about 6.5 cm high. Horizontal line at 5.5 cm from bottom. Horizontal line 0.5 cm from the bottom marked with A g+, C o2+, C u2+, F e3+, B i3+ and Unk at regular intervals. Vertical ruler starts at 0 cm at horizontal line. A g+ = yellow dot on line. C o 2+ = grey elongated dot at 2 to 3 cm from line. C u2+ = orange dot at 2.5 to 3 cm from line. F e3+ = blue dot 3 to 3.5 cm from line. B i3+ = beige dot at 4 cm from line. Unk = orange dot at 2.5 to 3 cm from line and blue dot 3 to 3.5 cm from line. End of image.

back 13

front 14

Your instructor will give you instructions as what to do with this box. It may be used for bonus points, or for taking away points (for example late submissions) or for error analysis if something went wrong during the lab. If no instructions have been provided to you, please leave this box blank.

5% = 4

back 14

no data