(Actual value – estimated value/actual value) x 100: Subtract estimated value from actual value. Then divide by the actual value and multiply the answer by 100 7. Repeat the previous 1-6 steps while performing an additional two trials to ensure accuracy. Record results 8. Determine the averages for the three previous trials 9. Results for the first measuring device (beaker) is noted in Table 1a 10. Repeat the previous steps 1-8 using different measuring devices (burette‚ measuring scale‚ graduated
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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. Use the density formula to calculate the density‚ and then calculate the accuracy and precision of your measurements. Mass 20 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
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cylinder INTRODUCTION The purpose of this experiment is to study the relationship of several types of volumetric glassware and the accuracy of measuring the volumes of liquids very precisely in quantitative laboratory work. The accuracy of the measurement the volumes is the degree of closeness of measurements of a quantity’s actual volumes while the precision of the volumes is the degree to which repeated measurements under unchanged conditions show the same results. Each of volumetric glassware
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Scientific Investigation Into The Manufacture Of paint Introduction: PPG Industries is a leader in its markets; is a streamlined‚ efficient manufacturer; and operates on the leading edge of new technologies and solutions. In this assignment I will be comparing the process of paint with the industry and in the laboratory. Process of paint In the industry Making paint involves mixing the pigment with resin‚ solvents‚ and other additives to form a paste. This is normally done as the first
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01.07 Accuracy and Precision: Balance Lab Worksheet Measurement * Measurement is an important skill used for data collection and data analysis. Careful attention to the accuracy and degree of uncertainty of each measuring device is necessary for proper data collection. Significant figures are used to record or report measurements accurately. * This laboratory activity will give you the opportunity to get more familiar with some of the basic measuring devices that are common in chemistry
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several ailments and surgeries are performed through the instructions communicated from one part of the world to other and with the help of robotic aids several critical surgeries are undertaken with minimal pain to the patient and with great precision and accuracy. Technology can also be used for negative purposes such as warfare leading to mass destruction and this should be avoided as all the developments which have taken shape
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‘Formality’ is very important‚ as academic writing is to inform the reader on a subject‚ it is not to be entertaining. Writing should be up to a formal standard‚ like broadsheet papers‚ textbooks and journals. As writing has to be a high standard‚ ‘Precision’ should also be considered. However this type of writing might be more relevant to scientific writing‚ giving facts and figures precisely. There is however a general rule that applies to all types of academic writing‚ which is objectivity. All academic
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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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01.07 Accuracy and Precision: Balance Lab Worksheet Calculations Show all of your work for each of the following calculations and be careful to follow significant figure rules in each calculation. 1. Part I: Density of Unknown Liquid 1. Calculate the mass of the liquid for each trial. (Subtract the mass of the empty graduated cylinder from the mass of the graduated cylinder with liquid.) Trial 1 36 - 25.5 = 10.5 Trial 2 36.5 - 25.5 = 11 Trial 3 36.9 - 25.5 = 11.4 2. Calculate the
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were found to be 100 and 1250 ng/ml respectively. Tamulosin Hydrochloride and Finasteride were found to be linear in the range of 0.3 to 10 µg/ml and 3.75 to 125 µg/ml respectively. The developed method was validated in terms of linearity‚ accuracy‚ precision‚ specificity‚ limit of detection‚ and limit of quantification as per ICH guidelines. System suitability parameters like number of theoretical plates (N)‚ peak asymmetry factor (As)‚ and resolution (Rs)‚ etc. were studied and it was found that
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