uncertainty. Name of author: Matthew Martin Date and time experiment was performed: 03/02/2011 12:00pm Course Name/Number: PHYS-171-DL1 Equipment and Material used: Pen and pencils Paper‚ plain and graph Computer and spreadsheet program No LabPaq supplies are required for this experiment. Data: The data table (Lab Manual‚ p. 55) that follows shows data taken in a free-fall experiment. Measurements were made of the distance of the fall (Y) at each of the four precisely measured times
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Experiment One: Laboratory Techniques and Measurements Objectives: 1. To apply basic knowledge regarding the measurement of mass‚ length‚ volume‚ temperature‚ and density 2. Learning to identify and use tools provided within the labpaq kit 3. Becoming familiar with common lab tools used in Chemistry Observations: While participating in experiment 1‚ I was able to become familiar with my new lab kit. I observed how to weigh and measure objects as well as record those findings in an organized
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temperature. Repeat the experiment using the BHT and the unknown substance. Pre-Lab Questions 1. a. 53.02 – 50.78 = 2.24 °C b. molar mass = __7.1 °C/m X 2.04 g (solute)__ 0.0248 kg (solvent) X 2.24 °C molar mass = 260. g 2. Colligative properties are physical properties of solutions that depend upon the number but not the kind of solute particles present. Data Melting Points Pure BHT | 68.8 °C | BHT + cetyl alcohol | 56.5 °C | BHT + unknown | 60.2 °C | Masses | BHT
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Chem Mr. Perry 25 January 2013 Molar Mass by Freezing Point Depression Conclusion: My Lab unsuccessfully found the molar mass of the unknown given to us in the lab. We were tasked with finding the molar mass of an unknown compound using the colligative property of Freezing Point Depression. The way we did this was first finding the temperature at which ice crystals form for just regular BHT. Luckily thanks to our TA we were given temperature probes so we could pinpoint exact temperatures. We found
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in constant motion and passes kinetic energy to colloidal particles by striking it from all sides. This results into zigzag movement of colloidal particles. This zigzag movement of colloidal particles is known as Brownian movement. Colligative Property Colligative properties depend upon the number of moles of solute present in given mass of solvent. It does not depend on nature of solute particles. Colloidal particles are not simple molecules‚ they are aggregations of molecules. Hence‚ all colloidal
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JEET SCIENCE ACADEMY CHOWK AZAM (LAYYAH) TIME 2.5 Hr CHEMISTRY 1st YEAR CH # 1‚2‚9‚10 Marks: 85 G.Super . 1 Name…………………………………………...... Objective ROLL NO. ………………………………. Q.NO.1. Encircle the correct answer? (1×17=17) 1. Atoms of which one of the follelement have independent existance: (A) Flourine (B) Krypton (C ) Oxygen (D) Nitrogen 2.18g glucose is dissolved
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Zn(NO3)2 into well A3 of the 24-well plate. 5. Place 10 drops of Iron (III) chloride‚ FeCl3 into well A4 of the 24-well plate. 6. Place 10 drops of Copper (II) sulfate‚ Cu SO4 into well A5 of the 24-well plate. 7. Take the metal solids from your LabPaq 8. Use your tweezers to pick up and carefully insert the piece of magnesium into the sodium sulfate. Record your observations. 9. Carefully insert a piece of zinc into the magnesium sulfate. Record your observations. 10. Carefully insert a piece
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dichotomous keys for classification. Procedure: To start the experiment with exercise 1‚ I gathered all of the needed supplies‚ both from around my house and from the lab paq CD. I then began exercise one by printing the images in Figure 5 from my labpaq. I then proceeded to cut out each shark. Next I carefully examined the drawing of shark specimen 1. After examining the shark I went to the Key to the Classification of Sharks by Family chart. There‚ I went through each question‚ answering yes or
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HSB INSTITUTE FOR HIGHER EDUCATION (for IX-XII ‚UG‚PG) ADD: CB 81 D DDA FLATS HARI NAGAR M: 9210846949/9717925135 HSB INSTITUTE FOR HIGHER EDUCATION ADD: CB 81 D DDA FLATS HARI NAGAR An ISO 9001:2008 Certified Institute (Indian Standard Organization(ISO) Certificate Number:2071-QMS-1071) Email id: hsbsolutions7@gmail.com website:www.hsbsolutions.jimdo.com Ph: 9210846949 / 9717925135 Physics: Chapter 2 Solutions Last 15 years questions with solutions Topic: Strength of Solution Q.1Discuss
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PHY 121 Syllabus Course Description Introduction to general physics for programs requiring a one-year‚ non-calculus based physics course. Includes mechanics and heat. IN is the integrated version of the course with the lecture and lab taught simultaneously. Performance Objectives Upon completion of the course‚ you will be able to: Use the meter-kilogram-second-ampere (MKSA) metric system of measurement in lab and in problem solving. Use specific mathematics skills (powers of 10
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