Experiment Beer’s Law Abstract This experiment is to analyze samples provided by Q Company and apply Beer’s Law to determine their absorbance and prepare a Beer’s Law chart. Percent error and concentration rate is determined by Molarity of the samples. We then determined the concentration of blue dye in a drink; I used Gatorade blueberry-pomegranate. I did not receive – PVC pipe on foam block with cap, 9-volt battery, jumper cables not in the labpaq and was not able to do exercise 3. Experiment and Observations I collected all my materials together; distilled water, toothpicks, clear tape, Gatorade blueberry-pomegranate, glass beaker 100 mL, colorimeter assembly – PVC pipe on foam block with cap, 9-volt battery, jumper cables – NOT IN LABPAQ (2), FDC blue dye #1 – 2 mL in pipet, 2- 12 well test strips, pipet, fine tip, multimeter – digital, 5 test tubes, wax pencil, test tube rack.
How Much CO2 is in a Bottle of Soda? __Dr. David G. Haase, The Science House (2005-2006) I was wondering that the other day and remembered that one good way to get the carbon dioxide out of a soda is to shake it. My son demonstrated how to do this. This led to an experiment which you can try for yourself and investigate the amount of carbon dioxide dissolved in different beverages and how much can be released at different temperatures.
4. Also it helps the students to understand how yeast works and reacts to different chemicals. * Is important to shake the yeast suspension just before you add some to the test tube because all the yeast is in the bottom and you need to get it to the top to get them to the tube. * My graph shows that the amount of food and the activity of yeast were different because we put different amount of yeast. * The test tube should be set up in exactly the same way except for the differences amount of molasses because if not they would be a different result in the lab.
The dependant variable will be the amount of un-popped kernels left over. Relevance of Testable Question This experiment is relevant because in this economy everyone want to know that they are getting the absolute best value for each purchase that they make. If a bag of popcorn appears cheaper at first look because of the price, but half of it doesn’t pop is it really a good value? Knowing what will provide the best value will help others with future purchases to get the most value. Literature Review I chose two experiments that were similar to the one that I plan to conduct.
We recorded the observations of color changes that occurred when mixing the solutions into a data table. The next thing we did in our experiment was to blend a McDonald’s happy meal and add an unmeasured amount of water to the so called “McMush”. We conducted the experiment, with the goal of determining if the solutions contained starch, chloride, protein, or glucose and recorded our results in a data table. After analyzing the data concluded from the experiment we concluded that the McMush solution did not contain protein, glucose, or chloride because there were no color changes that matched the conclusions of our previously results. We also concluded that the McMush did have starch because when it was mixed with the solutions, it turned completely black which matched the data from our previously data table.
2.pour 2 cups of sugar in sauce pan and stir.the solution should look cloudy at first then i will become clear .then keep stirring for 2 minutes 3.After the sugar is dissolved pour the solution into the jar. 4.seed one stick by covering it in sugar.set the non seeded stick aside 5.insert the seeded stick into the center of the lid and cover all holes. 6complete steps 1-4 and insert non seeded stick. For best results let it sit for a week or more (seeded) Observations Day 1(sugar solution made) During the first 2 hours tiny crystals started to form Day 2 The sugar is starting to form Day 3 The crystals are a little bigger the day before Day 4 On the fourth day there is an increase of the amount of
Gabbeh Parente D September 21, 2010 Penny lab Problem: Does the number of drops of liquid a penny can hold depend on the type of liquid being used? Materials: * Beaker of water. * Eye dropper * Penny * Petri dish * Paper towels * Chocolate milk Pre-lab: Independent variable: water Dependent variable: Chocolate Milk Hypothesis: If the type of liquid changes (from water to chocolate milk) then the number of drops to fill the penny will decrease. Procedure: * Determine the number of drops of water it takes to fill a penny, holding the eye dropper 2 cm. from the penny.
Brand name of the FD&C color(s) from the grocery store food = Blue #1, Red #40 C. The FD&C color(s) making up the grocery store food colorings = McKormicks- Yellow #42, Blue #1, Red #40 D. The FD&C color(s) making up the Kool-Aid drinks. = Grape= Red #3 and Blue #1, Strawberry= Red #3 E. The FD&C color(s) making up the M&M’s®. = Blue #1, Yellow #6, Red #3, Post-Lab Questions: 1.Why can't a pen be used to draw the baseline on the chromatography paper? Because the ink would separate. 2.
The ad that I am analyzing is selling milk but it also has a secondary text in it referring to how milk is also essential to dieting. The ad I used for this assignment has the Got Milk? logo in the top left corner, with the right top corner having the words, “Lighten Up”. The background goes from a darker gray color on the left side, then the shading lightens to a light gray towards the right side. The shading is similar to a storm moving forward and darkening the area.
Two of the bags will be stored in the freezer, two in the refrigerator and two at room temperature in the pantry. The researcher will be testing how the storage of the popcorn can affect the number of un-popped kernels when stored within a 24 hour time frame then popped. The brand of microwave popcorn, the timed stored, the cooking method and the time cooked will be kept constant. By selecting the best storage method, one can pop a greater amount of popcorn and this can result in saving money. A1.