LAB 02: Measuring and Dispensing Liquids Introduction Pipetting is one of the most important and basic skills when it comes to experimental science. Good pipetting skills allow an individual to put trust in his or her results‚ prevent waste of materials‚ and assure reproducibility of results. In order to correctly pipette liquids‚ the volume range must be first determined. p1000 micropipettes have a volume range of 200 - 1000 uL‚ p200 micropipettes have a volume range of 20 - 200 uL‚ and p20 micropipettes
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you can see the US standard units measuring system and the metric system disagree with one another in this instance. This isn’t the only situation either. They clash with one another in many other situations world wide. That is why America should join the rest of the world and switch to using the metric system. America is in the minority when it comes to the metric system.
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INTRODUCTION Stock market is a market where the trading of company stock‚ both listed securities and unlisted takes place. It is different from stock exchange because it includes all the national stock exchanges of the country. Stock Exchanges are an organized marketplace‚ either corporation or mutual organization‚ where members of the organization gather to trade company stocks or other securities. The members may act either as agents for their customers‚ or as principals for their own accounts
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Mg atom is 24 g‚ find mass of 1 Mg atom. 2. Find mass of 1 molecule C2H6. (C=12‚ H=1) 3. Find mole of 6‚9 g Na. (Na=23) 4. Find mass of 0‚2 mol P4 . (P=31) 5. Find mole of 4‚48 liters O2 under normal conditions. 6. Find mass of Fe in the compound including 4‚8x1023 O atoms ;Fe3O4 . 7. 1. Find relation between number of molecules of given matters; 8. I. C2H2 that includes 2mol H atom 9. II. CH4 that includes N atoms (N is Avogadro number) 10. III. C3H4 that includes 1‚5 N C atoms 11. Find relation between
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1 mL = 1 cm3 Answers: a)0.5 b) 0.004 c) 8000 d) 0.009 e)0.002 f) 6000 g) 0.04 h) 0.012 i)0.0065 j) 7.02 k) 30 l) 603.5 m) 32 n) 0.038 Page 2 of 5 2. One cereal bar has a mass of 37 g. What is the mass of 6 cereal bars? Is that more than or less than 1kg? Explain your answer. 222 g less that halkf of a kg 3. Wanda needs to move 110 kg of rocks. She can carry l0 hg each trip. How many trips must she make? Explain your answer. 110 10 hg =1kg 4. Dr. O is
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UNIT CU1516.1 Care workers are involved in many daily tasks which involve service users. My responsibilities involve ensuring all tasks are carried out with regard to : * Company Policy‚ Procedure and guidelines * Health and Safety * Hygiene My work role. * Waking service users at appropriate times * Supervision of their morning routine such as washing‚ showering‚ using the toilet‚ brushing teeth and any other personal care activities such as shaving‚ hair care etc. *
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Exercise: 1) Convert the following: 3 m = ____300______ cm 83 m = _____83000000_____ μm 41‚692 m = ____.000041692______ mm 110 kilometers = _____110000_____ m = ____110000000________ mm 3.7 hectometers =____370_____ m =_____37000_______ cm 451‚000‚000 μm = ____.000451_____ m = ____.0000451_______ dam 2) Imagine a field is about 100 meters long. If you run a 5K race how many meters is it? Approximately how many “fields” does this equate to? 50 football fields 3) Measure the following objects.
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Mass Affecting Final Velocity Name: Anlin Pereira Class: 11C The lab was conducted on 24th September 2014 Teacher: Ms. Timlin Research question: How does the mass (grams) affect the final velocity (m/s) of the toy car on a one meter ramp? Aim: To carry out an investigation to prove that factors such as mass (grams) affects the final velocity (m/s) of an object as it travels a straight line and has a constant acceleration (m/s²). Hypothesis: It is predicted that the mass of the moving object
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The Molar Mass of a Volatile Liquid Adam Kozdrowicz Adam Li 11/05/12 Mr. McCready Purpose: The purpose of this procedure is to determine the molar mass of an unknown liquid‚ evaporate a sample of a liquid substance‚ and measure certain physical properties of the substance as it condenses. Procedure: 1. Obtain safety goggles. 2. Trim a piece of aluminum foil so that it covers the top of a small 13 x 100 mm test tube. Secure the foil with electrical tape. Make sure
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English‚ the Official Language in the U. S. Michele Hoard ENG 122 Instructor Nelly Aguilar March 7‚ 2011 English‚ the Official Language in the U. S. The researcher stated that English is now the official language in the United States. There are documents that discuss the importance of an official language in America‚ which supports this statement. In this research there are further details about English as the Official Language in the U. S. and how language can unite people in society
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