experimental pH values starting at value 2 through value 10 (all even #’s) 3. Transferred 25 ml of the substrate B into the cuvette using the pipette. 4. Referring to the timer to determine when 1 minute has passed transferred 5 ml of enzyme B into the cuvette and quickly into the sample holder of the spectrophotometer. 5. Recorded the absorption value at the 1 minute mark 6. Started a new experiment by removing the cuvette from the spectrophotometer and clicking the “New Experiment” button to repeat and continue the steps for the remaining pH values
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AP Chemistry Period 1 Molecular Weight of a Condensable Vapor Lab Purpose: The purpose and objective of this lab was to find the molecular weight of a condensed vapor. Materials and Equipment: • Aluminum foil square (around 6cm on a side) • 125 mL flask • Barometer • 3 mL of unknown liquid • 200 mL graduated cylinder • 600 mL beaker • Pin • Balance (0.002g) • Bunsen Burner setup • Rubber band • Thermometer • Ceramic center wire gauze Procedure: 1. A 125 mL flask was obtained
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AP Physics Slinky Velocity Lab Group: Asaf Yankilevich‚ Lily Greenwald‚ Yaeli Eijkenaar‚ Michal Antonov 2/23/15 Materials ● Slinky ● Spring weight ● Force measurer ● Measuring Tape ● Timer Procedure 1. The first slinky’s mass was weighed‚ using a scale‚ and its tension was measured using a force measurer 2. The slinky was stretched to 4m. 3. The linear mass density was solved for‚ by dividing the mass by the length. 4. The theoretical velocity was solved for‚ using the equation
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AP Chemistry Kinetics Lab Abstract: The purpose of this lab is to learn how to write law expressions‚ determine orders by graphs‚ and calculate rate constants. By determining the number of drops of sodium hypochlorite necessary to make a diluted food dye change to colorless in less than three minutes helps calculate the absorbance which can then be analyzed to find the pseudo rate constant and eventually leading to the rate constant and the rate law. The results show that the m and n are both 1st
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BIOS251 Week 4 Lab Anatomy of the Skeletal System Exercise – Answer Key 1. What area of the long bone is covered with cartilage? (3 points) 2. What type of cartilage is articular cartilage? (3 points) 3. What area the epiphysis or diaphysis is made up of a thin layer of compact bone and a very thick layer of spongy bone? (3 points) 4. What area the epiphysis or diaphysis is made up of a thick layer of compact bone and a very thin layer of spongy bone.(3 points) 5. Identify the
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BioLab3 Lab Report 5 Enzymes Student Name: Cooper Lyon I. Enzyme Structure and Function EXERCISE 1 – Preparation of an enzyme activity standard At five minute intervals over the next fifteen minute period‚ record the color intensity of the solution of each test tube. Time (min) Tube S1 Potato Extract + Catechol Tube S2 Potato Extract + Water Tube S3 Catechol + Water 0 Shade of Yellow Clear/Milky Clear/Milky 5 Shade of Yellow Clear/Milky Clear/Milky 10 Orange Clear/Milky Clear/Milky 15
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. CHM130 Lab 5 The Atomic Mass of Beanium Name: A. Data Table : Insert your Data Table here with your sample calculations. You must show at least one sample calculation per procedure step. (16 points) Part I Data Table Sample Mass (mg) Number/Qty Average Mass (mg) Relative Abundance Relative Weight (mg) Kidneybeanium 18725mg 25 749mg 25/75=.33 749mg*.33=247.17mg Pintobeanium 11575mg 25 463mg 25/75=.33 463mg*.33=152.79mg Blackeyedpeaium 9900mg 25 396mg 25/75=.33 369mg*.33=130
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Lab 14 Worksheet (52 points) Exercise 14.1 1. How can you find out which port Windows Firewall opened up on NYC-CLb? (4 points) Exercise 14.1 step 18 Take a screen shot of the Add or Remove Snap-ins dialog box‚ showing the two Event Viewer instances you added‚ by using the Snipping tool. (4 points) Exercise 14.2 2. When using Remote Assistance‚ why might it be necessary to impose a time limit on the invitation? (5 points) Exercise 14.3 Exercise 14.3 step 15 Take a screen shot of
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Lab 5: Osmosis Purpose: The purpose of this lab is to familiarize you with osmosis and‚ specifically‚ what happens to cells when they are exposed to solutions of differing tonicities. Hypothesis: If we add higher concentrations of sugar to the dialysis tubing‚ then the net movement of coffee into the dialysis tubing will increase. Materials scale or balance 24" dialysis tubing 4 transfer pipets sugar scissors rubber bands four coffee cups - they need to be roughly the same size
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Lab 5: Ethernet LANS Exercise 5.1.1 The IEEE standards cover more than just Ethernet. The 802.3 standard actually builds upon the 802.1 network architecture standard from IEEE. Briefly define the 802.1 standard and what it provides. Use your textbook and the Internet to research your answer. A: The 802.1 standards provide LAN/MAN management. The 802.1 standards where created by the close of the 1970’s. Exercise 5.1.2 The 802.3 family of standards has the format 802.3x where x is a sequence of letters
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