What is the percentage of error in a measurement when the experimental value is 3.80g and the true value is 3.92g

Q: A student uses a balance with a stated uncertainty of #0.002 g to weigh a quantity of a reagent by…

A: Empty beaker weight = 40.301 g Beaker + Reagent weight = 40.689 g

Q: Standard deviation is an indication of the... a. precision of one measurement b. accuracy of one…

A: Standard deviation:a number which is used to inform how measurements for a group are spread out from…

Q: Random error is error associated with the precision limits of the measuring device; it causes some…

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Q: measurement uncertainty”. Among the instruments

A: in this question analytical balance , serological pipette and graduated cylinder is the highest…

Q: What is the uncertainty of a measurement using a milligram balance?

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Q: conversion factor

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Q: A student estimated that the volume of a cruicable was 28.6 mL. When the volume was accurately…

A: To check the % error , the given formula is -

Q: Express the following measured values using absolute error using appropriate significant figures: a.…

A: In the given question we have to calculate the absolute error of given molarity , volume in litre…

Q: determine the precision of each measurement. 23.9m 14050ft 5.0 x 10^4s

A: The word Precision is defined by how closely a measurement matches the same measurement when…

Q: Which is NOT a quantitative measurement of a pencil?A. lengthB. massC. colorD. diameter

A: The one that is not quantitative measurement in pencil has to be given.

Q: C. 10 mL Pipet Calculated density of water (g/mL) Trial Volume of water (mL) Mass of water (g) 9.205…

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Q: The relative error for the following data below is: 39.83, 39.61, 39.25, 39.68 (the true accepted…

A: Measurement:39.83,39.61,39.25,39.68True value:40.00

Q: Which of these measurements was made with the most precise measuring device: 8.1956 m, 8.20 m, or…

A: Precision is a state to which a process or instrument will give exact values repeatedly or we can…

Q: e the percentage error in the measurement of the students.

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Q: Determine the precision of the graduated cylinders, and get the volume with the right significant…

A: Significant figures are the digits of numbers that are the accurate and more reliable value of data.…

Q: Convert the measuring units as indicated. 1. 10560 ft = mi 2. 21120 ft = mi 3. 8800 yd mi %3D

A: 1 mile (mi) = 5280 feet (ft) 1 mile (mi) = 1760 yard (yd)

Q: Express the following measured values using absolute error using appropriate significant figures: a.…

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Q: What is the uncertainty in a measurement of 0.39 mm?

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Q: Distinguish between accuracy andprecision and their representations:error and deviation

A: The standard deviation (SD) measures the amount of variability, or dispersion, from the individual…

Q: Explain the difference between: d. absolute and relative error e. population mean and sample mean…

A: Explain the difference between: d. absolute and relative error e. population mean and sample mean f.…

Q: The theoretical density of metal is 2.70g/ cm cube. The experimental density a student found in the…

A: We have to calculate the percentage error.

Q: For a set of 4 measurements, the precision of the data is calculated by: a. Standard deviation b.…

A: For a set of 4 measurements the precision of the data is calculated by

Q: If a beaker is weighed on a plus or minus 0.01 gram precision balance to be 152.63g and the beaker…

A: Given : Weight of beaker = 152.63 g Precision of beaker weight = 0.01 g Weight of beaker with test…

Q: Compare and contrast the following: (a) error and uncertainty, and (b) random error and systematic…

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Q: What is the measurement for the double-sided thermometer?

A: In the double sided thermometer shown one side presented as F(left side) is the temperature in…

Q: The relative error for the following data below is: 39.63, 39.61, 39.05, 39.08 (the true accepted…

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Q: . . is the difference between the value of a quantity as measured and the accepted value of the same…

A: In the given question we have to define the define error and relative Error. Error is the difference…

Q: You decide that it is too tedious to kneel or adjust your eye level when trying to read the volume…

A: Random error causes one measurement  to differ slightly from the next. it comes from unpredictable…

Q: A conversion factor is a fraction with one unit on top and a different unit on the bottom. True…

A: Answer Conversion of Fractions means to change the…

Q: 6. Define accuracy. Give the equation used to determine the accuracy of a measurement. 7. Define…

A: Answer:  Accuracy- It can be defined as the closeness of a measurement value to the true value. The…

Q: A method of analysis yields masses of gold that are lower by 0.40 mg. Calculate the percent relative…

A: The percentage relative error is percentage discrepancy in finding out the exact value of a…

Q: Which of the following is NOT true about constant weighing in the experiment? It involves a cycle of…

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Q: A class of chemistry students measured the density of an unknown liquid. If the correct density of…

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Q: llowing calculations. Round each result so that it contains only significant digits. The mbers in…

A: Solution -

Q: The scatter of replicate measurements may be expressed by: 1. OAccuracy 2. OStandard deviation 3. O…

A: Replicate measurement means same experiment is repeated multiple times. Now scatter data means we…

Q: A student calibrated a 10-mL graduated cylinder using water and determined a density of 0.9981 g/mL…

A: Percent error is defined as the absolute value of the difference between the experimental value and…

Q: A student measures the length of an object and obtains 3.65 cm. If thr true value (as reported by…

A: Given, Measured value = 3.65 cm True value = 3.75 cm

Q: Given a measurement of 21.43 mL, describe the error associated with this value.  Does it have more…

A: The error in measurement means that the variation between the values of the measured value and…

Q: If the denisty of Platnuim is 19.32 g/cm3 what could the dimnesions of a cube be that weighted 1.00…

A: Here given that, The density of platinum (d) = 19.32 g/cm3  And the mass of the cube (W) = 1.0 kg =…

Q: 16. Soru .is a quantitative measure of the reproducibility of experimental measurements A) Accuracy…

A: In the above question,  we have to define the precision which means how reproducible your reading or…

Q: Standard Deviation (mg CaC03/L water sample)

A: The standard deviation in the values of hardness (in mg CaCO3/L water sample) is to be determined.…

Q: The relative error for the following data below is: 39.63, 39.61, 39.05, 39.08 (the true accepted…

A: Given, The true accepted value , xt= 40.0 Data(s) given = 39.63 , 39.61, 39.05 , 39.08

Q: 1. Approximately, what is the percent uncertainty in the measurement 3.70 + 0.25m? 2. Convert 1.57m…

A: 3.70+/-0.25m this the range is from 3.70-0.25 to 3.70+0.25 i.e. 3.45 to 3.95 respectively the…

Q: An analyst weighs the same tablet three times on a well calibrated analytical balance and obtains…

A: Environmental changes, such as in temperature or humidity. Exposure to harsh conditions, such as…

Q: A loss of 0.4 mL of Zinc occurs in the course of an analysis to determine that element. Calculate…

A: Given that in an experiment involving Zn there is a loss of 0.4 mg of Zn. We need to calculate the…

Q: Correct! Now, determine the uncertainty value for the measurement. 7.48 ± A mL 7 SUBMIT UNCERTAINTY…

A: Uncertainty is the half of the smallest possible measurment that can be made with that glassware.

Q: What is the fraction used to determine the uncertainty in a measurement?

A: For determining the uncertainty in measurement in terms of fraction  we will consider an example…

Q: analytical balance b. top-loading balance c. serological pipette d. graduated cylinder e. burette f.…

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Q: The mass of a compound is taken 5 times with the following results: 26.6mg, 26.3mg, 26.2mg, 26.4mg,…

A: First, the mean of the given result is determined.

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.