The precision of an experiment is best described by O the % error O the true value O the % deviation O the average value

Q: a student makes 6 replicate readings and wants to calculate 95% confidence interval. which t value…

A: Find the mean (average) of the 6 readings.Calculate the standard deviation of the 6 readings.

Q: Chapter 7 Rate of chemical reactions Section 7.1 Investigating the rate of chemical reactions…

A: The chemical reaction between marble chips (CaCO3) and HCl is represented as follows: CaCO3+2HCl →…

Q: A measurement of the mass of a specimen was determined to be 4.203 +- 0.001 g. What is fractional…

A:

Q: Accuracy and precision are two important factors to consider when taking data measurements and they…

A: Accuracy and precision are two important factors to consider when taking data measurements and they…

Q: An electrochemical cell consists of a left compartment with a zinc electrode ih contact WILH…

A:

Q: Which of the following sentence is correct: O Gross errors result from carelessness and the…

A: The given options describe different types of errors like gross error, random error etc., and…

Q: Explain the difference between random error and systematic error.

A: A mistaken result or false result obtained in an experiment or study is termed as error. Error is…

Q: Give two examples of the Instrumental Error (one of the classification of systematic error). Please…

A: Instrumental errror is a type of error that occurs due to the poor calibration or inaccuracy of…

Q: Give two examples of the Scale Factor Error (one of the types of systematic error).

A: We need to give two examples of scale factor error.

Q: A student performed the same experiment as you. The following data was recorded in their lab…

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Q: A certain data set has low accuracy, but high precision. Which of the following statements about…

A: There is very little random and systematic error. Because random error causes one measurement to…

Q: QUESTION 57 Which of the following procedures can help fix systematic error? I) Averaging over more…

A: The objective is to determine the correct fixing measures with respect to systemeic errors.…

Q: Give an example from which the difference of Accuracy and Precision is described and explain why it…

A: Accuracy is the degree of closeness of measurements to the true value or reference value Precision…

Q: 3) For the results, discuss the significance of the following in terms of accuracy or precision: a)…

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Q: A student determined that the density of a sample of tin is 8.00 g/mL, when the actual density of…

A: The approximation error in some data is the discrepancy between an actual value and expected or…

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

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Q: Which of the following errors are determinate errors? Personal errors. O Method errors. O Random…

A: Determinate errors are those errors that can be identified and corrected. They include personal…

Q: 1. A student wanted to find the density of an object of unknown composition with a volume of 5.50…

A: Density, d = m (g)V (cm3) m = mass and V = Volume Percentage uncertainties: Volume:  % uncertainity…

Q: SISAI s performed three tim dents for the mass of 361g, and 0.2341g. T mass of silver is 0.52

A: Gravimetric analysis  quantitative  chemical analysis and steps involved in this method is  1.…

Q: The following statements are correct regarding errors except: O Detection of systematic method error…

A: There is one incoorect statement in the given 5 statements . We have to tell that incorrect…

Q: 4-The density of water at 4°Cs known to be 1.00 g/ml kim experimentally found the density of water…

A: Given the density of water at 4 degree centigrade is 1.00g/ml. Experimental density of water is…

Q: Systematic error causes the mean of a data set to differ from the accepted value. True…

A: The objective of measurement can be qualitative or quantitative. Every measurement has an inherent…

Q: 1000 Incorrect! But, you can still earn a point by determining the uncertainty value for the correct…

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Q: A student's percent error for the density of gold was 14% under the accepted value of 19.3 g ml-¹.…

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Q: In a certain population, body weights are normally distributed with a mean of 152 pounds and a…

A: To find people must be surveyed if we want to estimate the percentage:

Q: ing statements is true of the detection limit of an instrument?

A: The first question is based on antiquity, so instead of solving it, solve the second question with…

Q: The accuracy of an experiment is best described by O the % deviation O the average value O the %…

A:

Q: Which of the following sentence is correct: O Random errors cause outliers O Random error affects…

A: Errors are the deviation from the correct value.  Errors can be of different types, like random…

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.

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.