1. Lab 7: Paper chromatography of M&M candy dyes -
What chemical property determined how far up the chromatography paper, the dyes went?
2. Lab 7: Paper chromatography of M&M candy dyes -
In the following picture, rank the molecules (a, b, and c) from most polar to least.
3. Lab 8: Identification of Household Chemicals as Acid/Base with Red Cabbage -
In this lab you tested Lemon Juice, White Vinegar, Baking Soda, Body Wash, and Detergent. What did you determine was most acidic, which was least, and what were some sources of error in your experiment?
4. Lab 8: Identification of Household Chemicals as Acid/Base with Red Cabbage -
There were many pH ranges for the compound in red cabbage. It was able to alter its coloration over a wide range. What would the pH ranges be at the indicated steps of the following procedure:
i. A solution has a green-yellow color
ii. To that solution, vinegar is added, and it begins to bubble. When calm the solution is a blue color.
iii. More vinegar is added and the solution stops bubbling, it now has a violet color.
iv. When the rest of the vinegar is added it maintains a red to pink color.
5. Lab 9: Mole problems, Supersaturated Solution -
What volume of a 0.200M KI solution does it take to completely react with 100.0 mL of a 0.500 M solution of Pb(NO3)2 to form KNO3 (aq) and insoluble PbI2?
6. Lab 9: Mole problems, Supersaturated Solution -
How much would the final volume be if I took 14.00 mL of 6M HCl and wanted it to be diluted to 1.235M?
7. Lab 10: Double displacement Reaction and Osmosis -
Which of the following reactions represents a double replacement reaction?
a. CH4 + 2 O2 → CO2 + 2 H2O
b. C2H4 + H2 → C2H6
c. Pb(NO3)2 + 2 KI → PbI2 + 2 KNO3
d. C2H5Cl + OH- → H2O + C2H4 + Cl-
8. Lab 10: Double displacement Reaction and Osmosis -
In which direction would water move (in the bag or out) in the provided picture?
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