Colligative Properties and Molar Mass Determination_RPT - Tagged

Clinical __________________ is defined as a quantitative relationship between dose and effect that provide a way to interpret the measurement of concentrations of drugs in biological fluids.

Procedure 1. A crime situation is presented to you. You need to solve the crime by using your senses and given information. 2. Fill in the investigation report correctly. CRIME SCENE A man is found dead in a vac ant lot near his work place. In the crime scene, the SO cO collected different pieces of evidence including two pieces of cloth tainted with unknown stains. The police are hoping that through these pieces of evidence they could find the culprit criminal. or Cloth A Cloth B Pieces of evidence Data and Result Crime: Date: Piece of collected evidence:_ OBSERVATIONS: Cloth A Cloth B Final Findings: Questions 1. Which of the cloth A and cloth B can be used as possible source of evidence in the crime? Why? 2. Which property of matter did you use in making your observation?

Could someone Please Help with these! No plagiarism Please! A tire inflated with air is an example of a ___________________________. Evidence - Explanation - A pellet of sodium (Na) sliced in two pieces is an example of a _____________________________. Evidence - Explanation -

TRUE OR FALSE 14. An open flame is the heat source for heating or evaporating flammable liquids. __________ 15. Most chemicals used in experiments can be discarded into the sink.

TRUE OR FALSE __________ 6. The bowl of the funnel for gravity filtration may be filled to the brim. __________ 7. Transfer liquids and solutions from a reagent bottle or beaker with the aid of a stirring rod. __________ 8. Never touch, taste, or smell a chemical unless specifically told to do so. __________ 9. If uncertain as to how to dispose of a chemical, dumping it into the sink followed by copious amount of water is a safe disposal procedure. __________ 10. A centrifuge machine should be balanced with an even number of centrifuge/test tubes, placed across the rotor from one another, with equal volumes of liquid.

board Instructions Please select the best answer for each of the questions. This test has a time limit of 2 hours.This test will save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Timed Test Multiple Attempts Not allowed. This test can only be taken once. Force Completion Once started, this test must be completed in one sitting. Do not leave the test before clicking Save and Submit This test does not allow backtracking. Changes to the answer after submission are prohibited. Your answers are saved automatically. Remaining Time: 1 hour, 34 minutes, 00 seconds. * Question Completion Status: A Moving to the next question prevents changes to this answer. Question 2 What is the pH of the solution which results from mixing 25 mL of 0.20 M CH3CO>H and 25 mL of 0.20 M NAOH? (K, for CH3CO>H = 1.8 x 10-b) OA 8.87 OB. 10.43 OC7.00 OD.9 02 OE 5.13 A Moving to the next question prevents changes to this answer. *- F11…

Individually weigh each of the nine nickels used in part 2b. Then calculate the average,average deviation, and standard deviation of the nine samples. The mass of a U. S. nickel,when minted, is 5.000 g. What is the percent error between your average and the U. S. Mintvalue? Pay close attention to your significant figures when doing these calculations.   Sample Mass (g)                                                         Average Mass ____________ gNo.1 _5.029 ______                         Average Deviation ____________ g2 _5.010 ______                          Standard Deviation ____________ g3 _4.983 ______                            Percent Error ____________ %4 _5.036 ______5 _4.989 ______6 _5.026 ______7 _5.028 ______8 _4.980 ______9 _4.952 ______   im having issues with average deviation and standard deviation

LIMIT TEST (IMPURITIES - BIOLOGICAL) Instructions: Note the color change of each of the samples by writing blue or pink accordingly. Then give inference whether the sample is contaminated or not contaminated upon observation. Answer the highlighted numbers.     BLANK  (Sterile distilled water) Reference Sugar Solution Sample A Sample B REPLICATE 1 BLUE BLUE PINK PINK REPLICATE 2 BLUE PINK BLUE PINK REPLICATE 3 BLUE PINK PINK PINK INFERENCE NOT CONTAMINATED CONTAMINATED 1 2   1. 2. 3. Which of the two samples is relatively clean of biological impurities? 4. Given the result in limit test as an analyst, what will be the final conclusion to this? Write whether rejected or accepted for each sample.  (see attached photo)

The highest chemical reactivity rating in the hazmat diamond means that the chemical is _____________.     flammable     explosive     gaseous     toxic

Multiple Choice Each of the numbered items or incomplete statements is followed by answers or by completions of the statement. Select the one lettered answer or completion that is best in each case. Write your answer before each number. 27.Quality control department maintain and store records that represent the history of batch from start to finish a. Quality Coordinating office b. Analytical Laboratory d. Material Inspection Section e. Biological Testing Laboratory C. Specification & Analyrtical Development section 28. Which of the following cannot be assay by direct titration with standard base? Citric acid in calamansi juice a. Magnesium hydroxide in Milk of Magnesia C. Acetic acid in vinegar b. d. Diluted phosphoric acid 29. This is used for quantitative preparation of a standard solution: a. Pipet C. Volumetric flask b. Graduated cylinder d. Buret

Please correct answer and don't use hand rating

adds-up to 100. You may use the periodic table previously provided, a calulator and clean scrap paper. Timed Test This test has a time limit of 2 hours.This test will save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Multiple Attempts Not allowed. This test can only be taken once. Force Once started, this test must be completed in one sitting. Do not leave the test before clicking Save and Submit. Completion Your answers are saved automatically. Remaining Time: 1 hour, 58 minutes, 38 seconds. * Question Completion Status: A Moving to another question will save this response. Question 4 A sodium chloride solution is 38% NaCl by mass and has a density of 1.12 g.ml, determine: The Molarity of the solution The molality of the solution The mole fraction of water A Moving to another question will save this response.

Please help with questions 2 & 3

HDPE and PS are both inert to bases and acids, which plastic would you rather chose to put 1 Liter of 6M HCl for general chemistry lab? Explain why.

Question 35

Number 15 please.

Routine Chemical Tests for Urine - Word Table Tools Decy Joy Garriel Table Design O Tell me what you want to do 2 Share File Home Insert Draw Design Layout References Mailings Review View Help Layout X Cut P Find Calibri (Body) 12 A A Aa v AaBbCcD AaBbCcDc AaBbCcDc AaBbC AaBbCcC AaBbC AaBbCcD EE Copy ab. Replace Paste BIU v abe X, x A v aly - A - I Normal No Spacing I No Spac. Heading 1 Heading 2 Heading 3 Heading 4 A Select Format Painter Clipboard Font Paragraph Styles Editing COLLEGE OF HEALTH SCIENCES RESULTS AND OBSERVA TIONS: PARTI: BENEDICTS TEST FOR REDUCING SUGARS 田 TUBE PATIENT COLOR RESULT and NO. Before: Blue-green OBSERVATION WHITE PRECIPITATE: 1 Normal Patient 1 After: Greenish brown 2 Normal Patient 2 Before: Blue LIGHT GREEN After: Green PRECIPITA TE: 3 WHILTE AND YELLOW Pathologic Patient 1 Before: Blue PRECIPITATE: After: Green BRICK RED Before: Blue-green After: Brick Red Pathologic Patient 2 PRECIPITATE: Generalization: Page 5 of 8 947 words English (Philippines) K…

What safety rules did Andrew break?

Please help me answer the following questions using the data I included. 1&2

How to convert 4.76pm to um? Showing the work. 4.76pm x___________m x_____________ um =________________um How to convert 25.0mL to cL? Showing the work.  25.0mL x______________ x ___________ = ______________cL