Chem 25 lab test
[DOCX File]Experiment 4: Colorimetric Determination of Protein ...
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In this lab, you will test the operating protein concentration range of the BCA assay by generating a standard curve using known concentrations of BSA. You will assess your data for its linearity, perform a linear regression, and use your trendline to determine the concentration of two unknown protein samples.
[DOC File]ANALYSIS OF IRON IN FOODS - Purdue
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Prepare the following solutions in five test tubes. Thoroughly mix each with a stirring rod. Test Tube 0.001 M Fe(NO3)3 (mL) H2O (mL) Concentration (mM/L) 1 0 20 mL . 0.1 M HCl 0.00 2 5 15 0.25 3 10 10 0.50 4 15 5 0.75 5 20 0 1.00 Add 2.5 mL of 0.1 M KSCN to each test tube. Mix well. A red color should result from the formation of the FeSCN2+ ion.
HOUSTON COMMUNITY COLLEGE-NORTHWEST
CHEM 1412: GENERAL CHEMISTRY II. ... tests may be given prior to the start of the lab. These tests will be short and worth only one-two points. The pre lab test points will be included in the lab report grade. You must be present to take the pre lab test. ... Lab Exam: 25 points D (60-69%) =300-349 total points. Home Work: 25 Points F (0-59% ...
[DOC File]Iodoform Test - University of Minnesota
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Iodoform Test. Complete procedure is given here: 1. Put 4 drops of unknown into a test tube. 2. Add to this 0.5mL distilled water. 3. Add 0.25mL 6M NaOH and 0.25 mL of water. 4. Add 5 drops of KI3 solution (already made for you) 5. Note observations at beginning and after 10 min. 6. Do not collect precipitate *Yellow cloudy bottom layer ...
[DOC File]DETERMINATION OF THE Ksp OF Ag2CrO4
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You will use three solutions in this lab. Read the labels before you pour from the bottles. 0.25 M sodium nitrate—This promotes the growth of large silver chromate crystals. 4.00 mM silver nitrate in 0.25 M sodium nitrate —Silver is a photosensitive ion. 2.40 mM potassium chromate—Chromium is a toxic heavy metal. Important Terms
[DOC File]CHEM 102 - KFUPM
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CHEM 102 . Lecture and Lab Schedule . Chemistry by Zumdahl (6th Edition) Week Reading Assignment Homework Lab. Chapter Section(s) 1 12 ... Lab Test 21 1,2,3 14,16,26,32,36, 4,5 40,50,54 15 6,7 ... Prelaboratory Assignment --10 points ii. Experiment Report Sheet --65 points iii. Final Lab Exam --25 points (10 for a written test & 15 for an ...
[DOC File]Quiz/test – Stoichiometry
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Test – Stoichiometry Name_____ Joey Shmoe, a devious student, stole 66.6 grams of magnesium from the chem lab to watch people writhe in pain from retina …
[DOC File]Lab 10 - Updates
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Rinse out the test tubes. Repeat Steps 1-4 three times substituting first 1 M sodium carbonate, then 0.25 M ammonium oxalate and finally 1 M potassium chromate (plus 1 ml of 1 M acetic acid) for the 1 M sulfuric acid in step 1. Compare results and determine the order of the metals. Observations: Key: P = precipitate formed S = no precipitate formed
Test #1 – 9th grade Physical Science
Statement of the reason for doing the lab. Your prediction as to the outcome of the experiment. Answer all questions that have been handed out or written on the board. Makes a statement of the relationship between the variables after the experiment. Identify Questions 25 - 37 as True or False. The meter is greater than the length of 10 centimeters
[DOC File]AP Chemistry Unit:
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b. Lab 24 Determination of the Ka of an acid using a half-titration process. c. Lab 25 (using the Chemistry Lab book with Computers, by Vernier. These labs incorporate technology into the data collection and graphing. The student identifies all the regions of titration curves of …
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