CheMystery Labs Inc.

Project Work

                                                 

Dear Research Team Member:

        As an employee of CheMystery Labs Inc., you will be assigned to a research team with three or four other employees (students).  The research team will be assigned a project from the company's current work projects.  Information about the project can be found by following the links at the bottom of this letter.  You are encouraged to search the internet and your textbook for information concerning your research project.

Before you will be allowed to work in the laboratory, you must turn in a preliminary report.  Usually, you must describe in detail the procedures you plan to use, provide complete data tables for the data and observations you will collect, and list exactly what equipment you will need.  Only after your teacher acting as your supervisor, approves your plans are you allowed to proceed.  Before you begin writing a preliminary report, follow these steps.

                Read the investigation thoroughly, and search for clues.

                Jot down notes in your packet (notebook) as you find clues.

                Consider what you must measure or observe to solve the problem.

                Think about laboratory experiences you have done that used a similar technique or reaction.

                        Imagine working through a procedure, keeping track of each step, and determining what

                      equipment you need.

                Carefully consider whether your approach is the best, most efficient one.

 

 
CheMystery Labs Inc. PROJECTS

 

1.   Which fresh squeezed fruit juice contains the most vitamin C (mg of Vitamin C/25 mL of juice)?  

2.   Which brand of fruity cereal (Fruit Loops, Fruity Pebbles, Apple Jacks, Trix, etc.) contains the highest amount of vitamin C (mg of Vitamin C/ 25 mL of cereal water)?
 

3.   How does the style of cooking (steamed, boiled, baked, micro-waved or stir fried) affect the concentration of Vitamin C in broccoli (mg of Vitamin C/25 mL of water from cooking)?
 

4.   What commercially prepared orange juice has the most vitamin C  (mg of Vitamin C/25 mL of juice)?
 

5.   Which type of fruit drink contains the most vitamin c (mg of vitamin C/ 25 mL of drink)?
 

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6.   Which brand of suntan lotion has the greatest amount of hexane soluble oils (mg of hexane soluble oils/gram of lotion)?  

7.   Which brand of cookie will have the most hexane soluble fats in it (mg of hexane soluble fats/gram of cookie)?  NOTE: Can’t use chocolate chip or cream filled cookies  

8.   Which brand of crackers has the highest hexane soluble fat content (grams of hexane soluble fat/gram of cracker)?

9.   Which brand of fries (McDonald’s, Burger King, Arby’s or Wendy’s) has the highest hexane soluble grease content (mg of hexane soluble grease content/gram of french fry)?

10.    Which brand of potato chips (Pringles, Lays, Smith’s or Ruffles) has the highest hexane soluble grease content (mg of hexane soluble grease content/gram of chip)?  

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11.   Will brown or white egg shells contain the most calcium carbonate (g of calcium carbonate/ gram of egg shell)?
 

12.   Which local area’s water supply (Brigham City, Willard, Corinne, Honeyville) has the greatest total hardness (grains of hardness /gallon of water)?
 

13.   How does changing the concentration (%) of salt solution effect the freezing point of water (^oC)?
 

14.   Which salt (NaCl, KCl, ______, ________) is the most soluble in water (grams of salt / ml of water)?
 

15.   How does changing the temperature of 10 mL of water affect the solubility of KCl or KNO3 salt (grams of salt / mL of water)?
  

16.   Which common household chemical is most soluble in water (grams of solid mL of water)?
   

17.   How does the percentage (%) of copper in pennies differ during the years 1983 to 1999?
 

18.   How does changing the concentration (molarity) of H₂SO₄ effect the mass of a nail (grams of nail reacted/hour)?

19.   Which color of skittles has the most different color pigments in their dyes (number of colors[Rf values]/color of skittle)?
 

20.   Which color of lipstick has the most different color pigments in its dyes (number of colors[Rf values]/color of lipstick)?

 

21.   Which sports drink ( Powerade, Gatorade,  All Sport, or ___________ ) has the most dissolved nutrients in their drink (grams of dissolved nutrients/50 mL of drink)?

22.   Which brand of dish soap dissolves the most amount of grease (grams of grease/gram of soap)?
  

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23.   What brand of aspirin (________, _________,_________, _________) has the most salicylic acids per gram of tablet (mL of NaOH consumed/gram of tablet)  
 

24.   Which brand of antacid (Tums, Rolaids, Maalox, Smith’s) will neutralize the most acid (mL of acid/gram of tablet)?
 

25.   Which type of sour candy has the highest amount of acid (mL of base consumed/gram of candy)?
  

26.   Which fruit juice contains the most citric acid (using ammonia)?
 

27.   Which brand or type of vinegar has the most acetic acid (% concentration)?
  

28.   How does the heat of a reaction (calories) change as the concentration of the reactants changes (molarity)?

29.   How will the amount (grams) of iron III hydroxide precipitate produced change as the amount (mL) of sodium hydroxide changes?
 

30.   How does the actual amount (grams) of iron III hydroxide precipitate compare to the theoretical yield as predicted by the balance chemical reaction?
 

31.   How does changing the concentration (molarity) of HCl affect the rate of a reaction (grams of zinc or magnesium reacted / minute)?
 

32.   Which household bleach has the most sodium hypochlorite in it?

 
33.   How is the rate (seconds for black to appear) of an iodine clock reaction affected by the concentration of the reactants (molarity or mL)?
 

34.    Does the amount of protein (g) contained in milk vary with the type of milk ( cow, goat, soy, mother's)?  (grams of protein / mL of milk)

 

35.  Which water supply has the greatest amount of chlorine in it? (moles / liter)

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What brand of hydrogen peroxide has the highest concentration (%) of hydrogen peroxide in it?
 

How does the conductivity of a weak electrolyte (acetic acid, ______) compare to the conductivity of a strong electrolyte (NaCl, __________)?
 

Which ratio (mL of acetic acid / mL of sodium acetate) of acetic acid to sodium acetic provides the most efficient buffer?

How does changing the voltage of an electrolytic cell of an acidified water solution affect the amount (cc or mL of hydrogen/sec) of hydrogen produced?

 

How does the temperature (oC) affect the rate (grams or milliliters of product formed/sec) of an enzyme reaction?
 

How does the molarity of HCl change the rate gas produced when mixed with Mg (mL of hydrogen gas produced/second)?
 

How does changing the concentration of ________ change the equilibrium of a reaction?
 

Determine the phosphorus content in water / detergents using the spectophotometer.
 

How does the catalyst NaI affect the decomposition of hydrogen peroxide?

 
How does the catalase enzyme affect the decomposition of hydrogen peroxide?
 

How many moles of iron a consumed and moles of copper produced in the reaction of iron (nails) with aqueous copper II chloride?

What ratio of acetic acid to sodium acetate provides the most efficient buffer?
 

What metals give the best voltages in simple voltaic cells?
 

 

How is the polarity of a fabric related to its dye holding capacity?
 
 
 
 
 
 Some of the possible Chemistry projects are listed below.   You are encouraged to search the internet for other ideas or experiments you would like to do.  Many search engines are provided with most internet services.  Type in the keyword or words, then hit search.  CAUTION: Do not choose experiments that have alot of chemicals.  KEEP IT SIMPLE!!!