WHAT ARE THE SOURCES OF ERRORS IN DIFFERENTIAL COUNTING?

Q: "Analytical data are never more reliable than the sampling technique". Explain this statement.

A: Answer- Analytical data is a collection of data that is used to support decision making and/or…

Q: Dimensional Analysis Worksheet

A: →1 week =7 days     and 1 day =24hours→1g=106Mg  and 1g=103mg→1L=103mL→1 Km=103m→1…

Q: What is sampling in analytical chemistry?

A: Analytical chemistry is a branch of chemistry in which we analyze the sample by different…

Q: What is the most accurate volume that the graduations can measure in this instrument? Pinch and zoom…

A: Measuring cylinder (also known as graduated cylinder) is used to quantify a certain volume of liquid…

Q: 1) Perform the indicated mathematical operations. State the uncertainty of the final answer a…

A: Uncertainty is the measure of mathematical value which is deviated very little from measured value.

Q: (i) What is the difference among 1, 2, and 3?

A: The main difference is the substitution at the rightmost 5 membered ring. In compound 1 there is no…

Q: Read the meniscus with the uncertain error range (+/-). ml

A: According to the given image, the meniscus lies in between 5 mL - 6 mL.

Q: Read the length of the metal bar with the correct uncertainty error range (+/-). 5 10 15 20 cm

A: Length is measurement of anything from end to end.

Q: show calculation setups and answers for the following problem:  convert 15 nm into km

A: Given,15 nm.

Q: Please help me this question! Thank you! "What is the measuring range and accuracy (i.e. how many…

A: Micropipettes are precision instruments that are designed to transfer volumes in the microliter…

Q: The sum of 91.20 and 92.973 should be reported with—- digit(s) after the decimal point.

A: The numbers given are 91.20 and 92.973.

Q: Explain how detectors work in MS.

A: The role of detector is very crucial in mass spectrometry as it uses incident ion and help in…

Q: Transform nanometers into jules 520(nm) 630(nm)

A: We have to transfer nanometers into joules. 520 nm = 520×10-9 m 630 nm = 630×10-9

Q: What is the absolute error of the answer for the following operation? (8.12 +- 0.03)-(3.12+-0.02) =…

A: The operation given is, =>

Q: Repeatness is very important used to I a) Increase the error. b) Decrease the error. c) Minimize the…

A: Repeatness means to perform an experiment again and again.

Q: Give two examples of the offset errors

A: Offset error arises due to the initial point is not calibrated to zero.

Q: Memorize that 1mL=1cm3 Convert 2000mL to cm3 Use a conversion factor of 1cm3/1mL

A: If we are having,  1mL=1 cm3

Q: My available answer options for part B are: A) 5.88x10-1g B) 5.88x102g C) 1.18x100g D) 1.18x103g…

A: We need to select the correct option for the mass of oxygen

Q: 5. Perform the following calculations and report each answer with the correct number of significant…

A:

Q: 4 Br 1. 4 signals 2. 2 signals NH2 3. 5 signals

A: Given : We have to tell number of signal in C-13 NMR spectrum.

Q: Compute 9.3456 +2140.56-

A: Given values 9.3456+2140.56

Q: How are systematic method errors detected?

A: Systematic method error is a kind of systematic error. It will have a different calculated mean…

Q: or the straight line defined by the points ( 4,55) and (6,83), determine the slope (m) and…

A: When determining graphs in chemistry it is often provided with the points on the graph and we need…

Q: The number of significant figures in a measurement depends on the Choose... of the instrument used.…

A: Number of significant figure shows sensitivity of the measurement. Greater the number of significant…

Q: Convert inverse 500m to inverse micrometer

A: Meter can be changed to micrometer by taking the reciprocal of the quantity given in meters.

Q: What is the meaning of a confidence interval?

A: In chemistry there are many ways to check the deviation of experimental data from the accurate…

Q: "Precision" is the ___________ of a measurement a. probability b. repeatability c. variability…

A: Precision:The closeness of two or more calculated measurements regardless of the accuracy of those…

Q: Is the precision of your two trials within 5 %?. Support your answer with calculations

A: In order to analyze the precision of an experiment, we calculate the Percent relative standard…

Q: Simplify. <-59 X. X Write your answer with a positive exponent only.

A:

Q: ount 10Dq = 17600 cm' %3D

A: Dear student this question is related to crystal field splitting.

Q: What kind of mixture of substance has Distillation and Chromatography has?

A: There are different type of separation techniques or methods, which are used to separate the mixture…

Q: Evaluate 52.00 cm + 15.550 cm  report answer to the correct number of decimal places and include…

A: Significant figures are the number of digits in a measurement that grant the degree of accuracy of…

Q: Evaluate 52.00 cm + 15.550 cm %3D Report answer to the correct number of decimal places and include…

A: According to the rule of significant figures, the number of digits that must be present after the…

Q: In a particular trial, a student got a value for R of 0.071. Calculate the percent deviation of this…

A: In the particular trail the student got the value of R=0.071. The experimental Value of R = 0.071…

Q: 3. Calculate the average deviation of the densities and comment on the precision of the…

A: The question is based on the concept of analytical chemistry. we have to calculate average deviation…

Q: Suppose that you had calibrated the thermometer in your melting-point apparatus against a series of…

A: The total immersion thermometers are designed by manufacturers to get correct reading in case of the…

Q: A system will be error free if we remove all systematic error. A True B False

A: Given question is :  A system will be error free if we remove all systematic error.  Whether the…

Q: The measurements were recorded and then repeated six times for two different methods, each giving:…

A: Given: The sample mean, sample standard derivation ,and sample size 1st method are χ1¯ =42 , s1 =0.3…

Q: how can i round this Kc = qcalorimeter = 170.0cal = 36.95655217 cal/°C                 ∆T…

A:

Q: Explain why materials with very low density exhibit a greater degree of uncertainty in mass when…

A:

Q: If the mean value of certain set of eight measurements was 45.74, and standard deviation S=0.35.…

A:

Q: Find the mean and median of each of the following sets of data. Determine the deviation from the…

A: The following set is given: 0.0110, 0.0104, 0.0105 Mean of the given data: Mean is the average of a…

Q: Define the unit of variance?

A: Unit of variance  Variance is the average of the squared distances from each point to the mean.  the…

Q: The line described by a linear regression attempts to a. pass through as many points as possible.…

A: The regression line is used to study the relationship among two or more variables and observe the…

Q: level of uncertainty

A: LEVEL OF UNCERTAINITY

Q: Perform the indicated mathematical operations. State the uncertainty of the final answer as +…

A: It says that the answers should be written in terms of the least significant digits of teh given…

Q: Hi! I m working on a lab right now. I have three measurements, 1.057 .9442 .9629 and a mean…

A: When we do any lab work, then there are different measurements obtained by us for particular test or…