Calculate the Rf using the following equation: Rf = distance pigment migrated (mm) / distance solvent...
Calculate the Rf using the following equation:
Rf = distance pigment migrated (mm) / distance solvent migrated (mm)
|
Table 1: Part 1: Chromatography Data (15 points) |
|||
|
Solvent |
Distance from Original Line to Solvent Front |
Number of Bands |
Rf Factor |
|
Acetic Acid |
9cm |
1 |
? |
|
Acetone |
7.2cm |
3 |
? |
|
Mineral Oil |
5cm |
1 |
? |
|
Water |
8.8 |
0 |
? |
Homework Answers
You have to taken silvent which is moved to the farthest distance in the chromatography. In this case solvent is acetic acid.
Now you have to divide each solvent cover distance to solvent distance on chromatography.
| Solvent | Rf value |
| Acetic acid | 9/9=1 |
| Acetone | 7.2/9= 0.8 |
| Mineral oil | 5/9= 0.55 |
| Water | 8.8/9= 0.91 |
Add Answer to:
Calculate the Rf using the following equation:
Rf = distance pigment migrated (mm) / distance solvent...
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QUESTIONS TO ANSWER:
Prepare a table of all chemicals used with the structure and
purpose of each.
Calculate the theoretical yield by finding limiting reactant of
the experiment by converting reactants to product (remember to show
all calculations used)
Calculate the percent yield using the limiting reactant
Calculate the Rf for triphenylmethanol. If there are two dots,
determine which one is triphenylmethanol.. ( I did not provide
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1-Indicate in the following table the distance traveled
(cm) and the Rf (s) obtained for each sample deposited on the CCM
plate (Use the ruler on the side of the CCM to measure the
distances of the different samples).
Distance traveled by the solvent:
cm
Amidon Fructose Galactose Glucose Lactose Maltose Ribose Saccharose Inconnu 1 Inconnu 2 Inconnu 3 Lait nature Lait lactase Front de migration Sirop d'érable Jus d'orange 5 6 7 8 9 10 11 12 13 14...
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-Give a brief background on the role of pigments in
photosythensis.
-state your hypothesis.
-finish with stating the rationale for your hypothesis (how
did you arrive at these hypothesis?)
this is an introduction piece, so it doesn't need the results to
write the papee. introduction sections set up the background,
purpose, rationale, and hypothesis for a study.
Biod 20 PHOTOSYNTHESIS Background Plants harness the energy of the sun through a process called photosynthesis. The leaf is the plant organ that...
2. If two different compounds have the same Rr value, how might they be identified using paper chromatography? 3. Why is it important to keep the spots on the paper as small as possible? 4. If the solvent pool at the bottom of the beaker touched the spots on the 1.5cm line, what would happen to the spots? How would you address this error? 5. If you were teaching a student how to do paper chromatography, what three pieces of...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification
Reactions
Q: Calculate the expected mass of both methyl salicylate and
aspirin assuming 100% yield.
EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
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Prepare a table of all chemicals used with the structure and
purpose of each.
Calculate the theoretical yield by finding limiting reactant of
the experiment by converting reactants to product (remember to show
all calculations used)
Calculate the percent yield using the limiting reactant
Calculate the Rf for triphenylmethanol. If there are two dots,
determine which one is triphenylmethanol.. ( I did not provide
data. Please let me know how I Would do this if I did)...
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