Lab Questions By Zackary Conte and Justin Dvorsak The first experiment with 1 M sucrose in the bag and distilled water in the beaker had almost exactly the same results. The masses were relatively the same the difference have could been from the amount of liquid that was placed inside of each of the bags. The second experiment with 5% Ovalbumin in the bag and 1 M sucrose in the beaker had almost exactly the same results. The masses were relatively the same the difference could have been from the
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References: Alberte‚ J.‚ Pitzer‚ T.‚ & Calero‚ K. (2012).General Biology I lab Manual. (2nded.) pp 49-61 Boivin M‚ Flourie B‚ Rizza RA et.al. (2002).Gastrointestinal and metabolic effects of amylase inhibition in diabetics. Gastroenterology. Minnesota Copeland‚ Robert Fried‚ G. H.‚ & Handemenos‚ G. I. (2003). Biochemestry
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pH 10 buffer solution. It took 1mL of the EDTA each time to make it become the bright blue color. Data Table: | |Initial EDTA volume |Final EDTA Volume |Volume of EDTA used | |Trial 1 |9 mL |8 mL |1 mL | |Trial2 |8 mL |7 mL |1 mL | |Trial 3 |7 mL |6 mL |1 mL | | |Average volume of EDTA used: |1 mL | Questions A. Based on the analysis of your local water‚ how could you classify its hardness? a. It was pretty soft. B. Approximately how much calcium would you ingest by drinking
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three times a day. Behavior: Friendly to other mammals within the tank. Hypothesis (4 Points) If we keep marine animals in captivity for over a year‚ then their health and behavior will be negatively impacted. Procedure (4 Points) 1. Set up area in both wild and captive areas for testing. 2. Choose the same marine mammal for both the wild and captive area to test. 3. Tag and assess health of the wild marine mammal. Asses the health of the captive mammal. 4. Monitor mammals for
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Kathryn Marchessault Physics Lab LR Tuesday 8-9:55 Due 02/26/15 Experiment #1 Free Fall Experiment Abstract In this experiment we studied the motion of an object in free fall‚ that is an object being dropped from a certain height to Earth’s surface. In this experiment we tested the idea that no matter what the size‚ shape‚ color‚ etc. of the object if it would still experience the same constant acceleration throughout its fall (short distance). The constant downward acceleration it experiences
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Calculations 1. Rounding Examples *0.1356 (4 significant figures) -> Round answer to 2 significant figures *0.1356 -> 0.14 *314.705 (6 significant figures) -> Round number to 4 significant figures. *314.705 -> 314.7 *0.0035771 (5 significant figures) -> Round to 3 significant figures. *0.0035771 -> 0.00358 *500‚000 (1 significant figure) -> Write this number to have 3 significant figures. *500‚000 - 5.00 x 10^5 *39.501 -> Round to 2 significant figures. *39‚501
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Practice problems Chapter 6 Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which one of the following is correct? A) ν ÷ λ = c B) ν = cλ 1) C) νλ = c D) λ = c ν E) ν + λ = c 2) The photoelectric effect is __________. A) a relativistic effect B) the ejection of electrons by a metal when struck with light of sufficient energy C) the darkening of photographic film when exposed to
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(Document Created by: RED) Example Unknown ● (1) I believe this solution to be Copper(II)Hydroxide because of the following reasons: ○ It has a pH value of 12 and burning it produces a bluegreen color. ○ It produced bubbles when mixed with Zn‚ Al and Fe which are all more reactive than copper. ● (2) I believe this solution to be Sodium Sulfate because of the following reasons: ○ Blah blah blah ○ Blah blah ○ blah blahhh Unknown 1 ● NaCl ○ ○ ○ ○ ○ Unknown 2 yellow flame
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to touch} and negative in the case of exothermic reactions {the test-tube becomes warm/hot to touch}. [pic] [pic] Endothermic Reaction Exothermic Reaction Data Collection: Table 1- Record of the amount taken and the temperature change of the reactants. | |Two substances taken |Amount taken in cm³ [± 0.5] OR g [± |Temperature before |Temperature after |Endothermic/Exothermic | |
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In the Lewis symbol for a fluorine atom‚ there are __________ paired and __________ unpaired electrons. A) 4‚ 2 B) 0‚ 5 C) 2‚ 5 D) 6‚ 1 E) 4‚1 2. Which of the following would have to gain two electrons in order to achieve a noble gas electron configuration? O Sr Na Se Br A) Sr B) Br C) Sr‚ O‚ Se D) Na E) O‚ Se 3. The electron configuration of the S2- ion is __________. A) [Ne]3s23p2 B) [Ne]3s23p6 C) [Kr]3s22p-6 D) [Ar]3s23p2 E) [Ar]3s23p6 4. The ion NO- has __________
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