Starch‚ one variable may be observed. 2. Biuret reagent will turn your skin brownish-purple. Explain why this occurs. Biuret reagent will turn your skin a brownish-purple because Iodine detects protein in a substance by changing the color to a brown or purple shade‚ and since your skin contains protein it will also change color. 3. When greasy food is spilled on clothing‚ why is it difficult to clean with water alone? Water cannot remove grease water is polar and grease is non-polar. They are
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Connection To Real Women Have Curves In the movie Real Women Have Curves multiple obstacles that may impact a student’s possibility of continuing with his or her education are clearly pointed out. In the movie Real Women Have Curves there is Ana‚ a character in the movie that has the opportunity to continue her education after high school by attending a university but‚ has to work as a seamstress with her mother and sister. The one issue that I can relate to is that like Ana I have had to go to
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extra hydrogen bonds on top of each other‚ making extra-tough microfibrils that cannot be digested by most organisms. Proteins accomplish many different tasks‚ including structural support‚ storage‚ transport‚ movement‚ and defense against foreign substances. One noteworthy type of protein‚ called an enzyme‚ acts as a catalyst‚ speeding up chemical reactions in the cell. All proteins are composed of the same set of 20 amino acids‚ and each amino acid differs from the other only by the "R group" attached
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Determination of Equilibrium Constants Introduction Bromothymol blue is an indicator for many acid-base titrations. When adding different solutions within the indicator it is to react and change colors‚ in this experiment the different colors were blue‚ green‚ and yellow. In the following experiment‚ obtaining the absorbance levels for each one makes it possible to calculate the equilibrium constant. Materials and Methods For this specific experiment there are a few materials that are crucial
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Assignment: Learning Curve “A” Understanding Learning Curves Units | Total Lab | Avg Lab | Learning | | | | | | Hours | Per Unit | Rate | | | | | 1 | 6 | 6 | *** | | | | | 2 | 10.8 | 5.4 | 10% | | | | | 4 | 19.2 | 4.8 | 11.10% | | | | | 8 | 35.2 | 4.4 | 8.33% | | | | | 16 | 64 | 4 | 9.09% | | | | | 32 | 115.2 | 3.6 | 10% | | | | | 64 | 211.2 | 3.3 | 8.33% | | | | | 128
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Procedure: Melting point of RCO2H Before observing the melting point of the unknown sample‚ the melting apparatus had to be standardized with a standard substance having the melting point of 151°C-153°C. After placing a small sample of the standard in a capillary tube and inserting the tube into the sample tube holder‚ the plateau on the device was set to 15°C below the expected melting point. After its temperature reached the plateau‚ the temperature increment was set at 1°C per minute‚ and the
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| | 1 | 0.2123 | 0.00 | 42.34 | 42.34 | 2 | 0.2195 | 0.00 | 47.24 | 47.24 | 3 | 0.2049 | 0.00 | 26.65 | 46.65 | After Boiling | 1 | | 31.52 | 32.22 | 0.70 | 2 | | 29.34 | 30.61 | 1.27 | 3 | | 30.61 | 31.52 | 0.91 | Week 2: Determination of Sodium Carbonate in the unknown via titrating using bromocresol indicator Sample number: SC 8 Table 2: Titration of the unknown using hydrochloric acid Trial | Mass of unknown (g) | Burette reading (before boiling) | Final Volume
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Unfair Work Conditions: The Fight Over Independence or Family! The play Real Women Have Curves was written by Josefina Lopez‚ it depicted the hard ships of immigrant female workers and the power and strength of women working together as one. About a decade later a movie was made. However the movie Real Women Have Curves still shows the same struggles these women in the play face and also shows how strong women working together can be. The key differences
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Determination. Determination is firmness of purpose; resoluteness also known as a quality that makes you continue trying to do or achieve something that is difficult. In so many stories you see so many people and characters being determined. But especially in the Panyee Football Club movie by TMB Brand‚ the boys learn that through hard work and determination you can achieve anything. Even though the villagers made fun of the boys the boys were determined. The boys ended up forming their own team
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wants to use Excel to determine the appropriate cutoff points for her grading curve. Generally‚ she wants to set the cutoff points so that the following distribution of grades is observed in the student body: F 5% D 10% C 35% B 35% A 15% Professor Reynolds has five possible grading curves. For example‚ in Grading Curve 1‚ she will assign As to test scores from 80 to 100. She wants you to evaluate each grading curve scenario and determine which one results in a distribution of grades closest
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