Daniel H. Perry Procedures of Measurement and Density of Sugar in Soda Introduction The main focus of this lab was to acquire a basic understanding of how to properly use measuring devices in order to determine properties of a liquid. These properties are volume‚ mass‚ and density. The following measurements were obtained in the lab: density of water‚ both density and concentration of aqueous sugar solutions‚ and density of various soft drinks with respect to sugar. Additional experience was
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the data from before created a graph. Using the graph‚ get the best-fit straight line to examine the relationship. Using the predicative model (the best-fit line) to determine the percent copper and zinc in pennies. Then accuracy the errors and error percentages. Precision the absolute deviation and the deviation percentages. Observation: Part 1: Pre-82 Pennies Weight 10 dry pre-82 pennies which get 30.29g‚ using 30ml initial volume measuring the volume of 10 pennies‚ record the data 3.0ml
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Determining the Percent Copper and Zinc in Pennies from Density Lab Report Procedure: For pre-1982 pennies- Mass 10 pennies‚ record data. Fill a 100mL graduated cylinder to 40mL or enough to fully submerge the pennies with water‚ record the volume in data table. Carefully place the pennies into the graduated cylinder‚ record the final volume of the water in data table. To find the volume of the pennies‚ subtract the final volume from the initial‚ record the data. Repeat this procedure twice more
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Detailed 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
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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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EXPERIMENT #1: SCIENTIFIC MEASUREMENT AND ERROR By: Date: 8/26/13 Objectives: The goals of the experiment are to learn how to use different types of scientific glassware and to understand the significance of precision and accuracy in scientific measurement. Procedure: No modifications were made during the experiment. Data: Data tables for the experiment are provided on attached sheet. Calculations: Table I - Table III – Table IV –
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lives even though we may not realize that chemistry is everywhere. This paper serves to examine the ways in which chemistry is relevant in everyday life and in society. It will also examine the difference between accuracy and precision and provide examples of when accuracy and precision are crucial in measurements and why society depends on these measurements to be accurate and precise ( Tam 2012). Chemistry in Society When we turn on the tap and fill a glass with water and drink it‚ we are benefitting
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But she’s adopted S- *goes to the corner and cries* *Dart Scene* C- y’all ready for a family game night? SA- I suppose it will help release tension‚ Heather you’re up for it C- It will help you with your precision and accuracy because you suck so bad (Explains precision and accuracy) *heather throws all three darts and misses* SA- Well you’re accurate at sucking but at least you’re precise
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survive. Accuracy and Precision relate to quality of measurement. Accuracy refers to how close the measurements are to the “true” value or accepted standard value or known value. Precision is how close measurements are to each other. Precision is a unit of measurement that is also referred to as the ability to reproduce the same results multiple times. Society is reliant on standard measurements when they buy goods and services. Society depends upon the accuracy and precision of measurements
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than those we actually measured. We need to round our answer off to reflect the same level of certainty in our answer as we had with the measures we made. Accurate or Precise? Precision refers to how close data are to each other Are the consistent with each other? Significant Figures indicate confidence/precision Accuracy refers to how close data are to an accepted value Error-difference between data point and accepted value % error-as part of accepted value International System of Units (SI) Base
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