would account for any discrepancies in the weight of different graduated cylinders. 4. a) In Part B‚ you are instructed to deliver “about 2 mL” of water from a buret “with a precision of 0.01 mL.” Which of the following quoted volumes is/are consistent with these instructions? 1.87 mL it follows instructions for precision‚ but not necessarily for accuracy 1.999 mL this does not use the number of significant digits we are supposed to use (3 sd would be 1.99 mL) 2.03 mL it
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Lesson Plan in Mathematics IV I.Objectives At the end of the lesson‚ the students should be able to: 1. Identify linear equation in two variables. 2. Solve and graph linear equation in two linear variables 3..Present solutions with accuracy and precision in ones work. II.Subject matt... Premium763 Words4 Pages Detailed Lesson Plan A DETAILED DEMOSTRATION LESSON PLAN IN SCIENCE AND HEALTH V I. OBJECTIVES At the end of the lesson‚ the pupils should be able to: a. Identify ways by which solar energy
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1. What is changing in the toothbrush category? Assess Colgate Palmolive’s competitive position. Toothbrush manufacturers have poured millions of dollars and hours‚ to marry form and function in oral health care products that enable their users to brush frequently‚ comfortably‚ and above all‚ properly. Along the way‚ they have built the U.S. oral care market into a $2.9 billion industry‚ changed the brushing habits of millions and turned the lowly toothbrush into a trendy lifestyle accessory. As
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Experiment 1 (week 2) The purpose of this experiment is to become familiar with the precision and accuracy of scientific glassware. I figured the smaller the glassware the more accurate the measurements would be. Which when we were preforming the experiment proved my theory. As the glassware got smaller the easier it was to get the accurate amount of water into the glassware. We went from a big flask to a small beaker to an even smaller pipette. We used a scale to get the appropriate weight
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to ’tare’ when taking the mass of your sample? Be specific. Answer: Tare is used to reset a balance to zero in order to get only the weight of a sample‚ not of a sample and container (Yee‚ n.d.‚ Weighing…). It is important because accuracy and precision are both very important when measuring. The tare feature makes the measurement more accurate. It also allows just the substance to be measured without the substance having to be put directly on the balance. (c) (2 pts) What is the difference between
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not the US should continue their use of drones in warfare. The use of drones in warfare should continue to be used by the US because they have multiple advantages. One of the reasons why drones are a huge benefit for the US is because of their precision and accuracy. An article that is in favor of the US continuing their use of drones in warfare states‚ “... since the United States began conducting drone strikes abroad following the Sep. 11‚ 2001 attacks‚
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2011). Precision is how close the measured standards are to each other (Math is fun‚ 2011). Society depends on accuracy and precision in everyday life. These two relationships are often substituted freely‚ but both have crucial differences. Businesses entail both accurate and precise measurements to stay in business. Accuracy states that something is constant with an identified rate‚ whereas precision is the volume of detail something delivers. Society depends on accuracy and precision in many
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phenylisothiocyanate in presence of a base to yield phenylthiourea derivative. This derivative showed maximum absorbance at 240 nm. Beer’s law is obeyed in the concentration range of 5-25 µg/ml. The method was validated in terms of linearity‚ precision (relative standard deviation 1.1%)‚ accuracy and specificity. The proposed method is the only method available for spectrophotometric determination of the drug. It is simple‚ precise‚ accurate‚ sensitive and reproducible and can be used for the
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6429 Ω (from the graph) ΔS = |S1 - S2| / 2 = | (-0.4714 - (-0.6429)) | / 2 = 0.08580 Ω (cor. to 4 sig. fig) _THE INTERNAL RESISTANCE OF THE BATTERY ± Δ INTERNAL RESISTANCE OF THE BATTERY = 0.5223 Ω ± 0.08580 Ω_ (COR. TO 4 SIG. FIG) Percentage precision = (1.000 - 0.08580 /0.5223) x 100% = 83.57% (cor. to 4 sig. fig) _THE EMF OF THE BATTERY_ Uncertainty for intercept vertical axis From the graph above (Voltage against Current) Intercept vertical axis of the best-fit line = 1.2969 V (from the
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uncertainty gives the reader an idea of the precision and accuracy of your measurements. Use the following method for finding the uncertainty associated with any measuring device used in lab. First‚ find the least count‚ or the smallest printed increment‚ of the measuring device. On the meter sticks‚ the least count is 1 mm. On the double pan balances‚ the least count is 0.1 g. On the small graduated cylinders‚ the least count is 25 ml. If you are using the full precision of the instrument‚ you are probably
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