possible to identify which peak correlates with which compound. Figure 2 contains a peak at around 500 and 700 nm which is a good indicator that that would-be chlorophyll b. This makes sense because this was the bottom band from the thin layer chromatography and chlorophyll b is the most polar compound. Chlorophyll B contains an aldehyde where chlorophyll A has a methyl group making it slightly more polar. Following that‚ figure 4 contains
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Report on the Reaction of Flames Towards Medals  Introduction The purpose of the flame lab was to identify a set of flame-test color standards for selected metal ions‚ relate the colors of a flame test to the behavior of excited electrons in a metal ion‚ observe spectral lines using diffraction grating‚ and to identify an unknown metal ion by using a flame test. My hypothesis for the lab was that most of the flames when sprayed with a solution will be a orange-red color. The unknown element
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My lab results were similar to my hypothesis. My hypothesis was that the densest object would be the rubber stopper. In the lab results the densest object was the penny and the rubber stopper was second. My hypothesis was switched. My hypothesis was correct when I stated that the macaroni was the third densest object. My hypothesis was also correct for the dice‚ but the bead and the dice share the same density. So they are both the fourth densest item. I was wrong with my hypothesis when I placed
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Of Mice & Men Section B Steinbeck presents Candy as a vulnerable character in this passage. He does this by referencing him as an “old man” before giving his name‚ so that the reader instantly knows his physical state and that he is weak person. He is also shown to be desperate throughout the passage when he tries to make friends with George and Lennie as soon as he meets them. He gossips about other people on the ranch and makes sure George “won’t tell Curley nothing” he said‚ as he finds this
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Candy‚ specifically sugar candy‚ is a confection made from a concentrated solution of sugar in water‚ to which flavorings and colorants are added. Candies come in numerous colors and varieties and have a long history in popular culture. The Middle English word candy began to be used in the late 13th century‚ coming into English from the Old French çucre candi‚ derived in turn from Persian Qand (=قند) and Qandi (=قندی)‚ "cane sugar"‚ probably derived from Sanskrit word khanda (खण्ड) "piece (of
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Lab 4: Photosynthesis and Chromatography of Spinach Leaves Discussion: The chromatography of the spinach leaves was taken to establish what pigments were present in the chloroplasts of the leaves. The solvent carried and separated the different pigments up the cellulose paper. The solvent moved up the paper because of capillary action because of adhesion of the solvent molecules and the paper. The pigments dissolved in the solvent also were carried up the paper and were separated because
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the frequency and wavelength of each one. A high frequency‚ which is high energy‚ results in a short wavelengthand vice versa. This makes the frequency and wavelength inversely proportional. Infrared radiation has longer electromagnetic wavelengths than that of
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Will no gum or having gum improve test scores? Data Analysis The question being answered in this experiment is‚ “Which gum will improve memorization the best?” The hypothesis for this experiment is‚ “If the gum flavor is altered‚ then one flavor will improve memorization more than another flavor.” The independent variable is the flavor of the gum. The dependent variable is the scores after taking the test with the different flavors. The control group was the test scores without any gum.Experimental
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In this experiment‚ we used acquired observational data to develop an activity series describing the relative reactivity of the metals being tested. The elements within a periodic table often show different trends in physical and chemical properties depending on the period or group they are apart of. In a periodic table‚ elements are arranged by increasing atomic number in horizontal rows called periods. The atomic numbers represent the number of protons in each element. The periodic table is also
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intermediate copper compounds back into copper metal. By weighing the copper at the beginning and at the end of the experiment the percentage yield can be determined. Method: The experiment was carried out as outlined in the practical manual. Results: Table: showing masses: Mass copper wire 0.2510 Mass crucible 28.9257 Mass watch glass 19.6213 Mass watch glass + copper 19.7890 Mass copper product 0.1677 Calculations: Percentage yield: Discussion and conclusion:
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