1) Suppose you use your calibrated 25-mL pipet twice to deliver “50 mL" liquid, what is the actual total volume? What is the error in the final volume?

Q: A chromatographic procedure separates 2.0 mg of sample on a 4.6 i.d. x 150 mm column with a flow…

A: Column chromatography is a separation technique used for the separation and purification of…

Q: P*V (kPa*mL) pente (Ay/Ax) Volume (mL) 1/Pression (kPa^-1) Pression ( kPa ) 0.010343123 96.6826…

A: Percent error is the difference between the expected value and the actual value as compared to the…

Q: 2. Several standards were chromatographed, 0.5 1.0 2.0 Conc (ug/ml) Peak area 5.0 10.1 17.2 and the…

A: The graph is to be plot by taking concentration(μg/mL) in X-axis and peak area in Y-axis.

Q: A 5.00 (+0.01) ml Class A transfer pipet is used to transfer 5.00 mL of a 0.309 (20.003) M Cut stock…

A: In order to determine the concentration of the diluted solution, apply the dilution formula:…

Q: In an experiment to calibrate a 50 ml burette at 30 ⁰C, a student calculated the volume corrections…

A: Plot the graph. The graph shows a kind of linear variation of volume correction with increase in…

Q: A 5.00 (±0.01) mL5.00 (±0.01) mL Class A transfer pipet is used to transfer 5.00 mL5.00 mL of a…

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Q: 1. The tolerance of a Class A 50 mL transfer pipet is ±0.05 mL. A student uses an uncalibrated Class…

A: Uncertainty propagation can be calculated using respective formula depends on the addition or…

Q: Paper chromatography was used to separate the components of a food dye. The food dye separated into…

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Q: AA (mg/g) UV (ug/ml) Sample (ug/ml) Unknown Fe solution 1 Unknown Fe solution _2 0.322 8.136 0.318…

A: Mean, standard deviations, confidence limit are calculated using respective formulas. We can't use…

Q: Next, the student calibrates the pipet. The calibrated pipet delivers a mean volume of 24.995 mL…

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Q: Determine the percentage error and the concentration of the prepared NaOH given the following data.…

A: Given data - NNaOHtrue = 0.045N Weight of KHP = 0.2503g For trial -1Vf NaOH= 25mlVi NaOH = 0mlFor…

Q: onfused in this part why is the answer 0.0005666? Therefore, average error/ deviation = d1 + d2 +…

A: We need average absolute error or deviation to calculate the ppt, as the formula for error in ppt…

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: 3. Compare the volume delivered (with absolute error) in each of the following cases. a) Four…

A: #3: #(a): The uncalibrated volume of the pipet = (25.00 + 0.04) mL  Absolute error = +0.04 mL  Total…

Q: Question 11 Based on the Replicate Data below, find the Mean volume, Median Volume, Spread, and…

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Q: Part A: Basic Laboratory Operations Density of a Solid TRIAL 1 TRIAL 2 Mass of solid (g) 19.761 g…

A: Analytical techniques give importance to accuracy and precision. Errors can be personal or…

Q: 3 The density of iron is 7.86 m³ Part A C What is its density in pounds per cubic b 3 b inch (1-n) ?…

A: The objective of this question is to convert the density of iron from grams per cubic centimeter…

Q: Convert a speed of 221 mi/h to units of feet per minute.

A: Given, the speed = 221 mi / 1 h  We have to convert it in feet/minute. For this we have to know…

Q: A biosensor was developed to measure the concentration of aqueous arsenic. To determine the accuracy…

A: Confidence interval is used to measure the accuracy of the biosensor.The test is to determine the…

Q: The reproducibility of replicate measurements may be expressed by: 1. ORelative error 2. O Absolute…

A: Reproducibility may be referred as reliability or degree of stability as per data when repeated…

Q: One of the following is not one of the Minimization of errors. Internal standard method O الاختيارات…

A: Here we have to find which option is not correct I.e. one of them is not one of the minimization of…

Q: 3. When measuring 40 mL, the micropipette has a tolerance limit of ± 0.8 mL. What do the…

A: The micro pipette's tolerance limit of ±0.8 mL is an important measure that shows how well the…

Q: A set of samples from an abandoned industrial site detected a suspected groundwater contaminant at a…

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Q: The chromatogram shows the separation of components in an over-the-counter pain reliever. Calculate…

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Q: I The difference in standard deviations for the two instrumerntal methods is significant. II The…

A: F-test formula helps to perform statistical test. This test helps in finding that whether the two…

Q: Calculate the absolute and relative uncertainties for the total delivered volume. Trial Volume…

A: Given:  The total volume delivered = the sum of volume delivered in all seven trails Hence, Vtotal =…

Q: All the pre lab and post lab question must be answered please. So I mean all the questions not just…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Mission 2: Experiment- Tools and Techniques in Analytical Measurements Datasheet for 37 A-1: Using…

A: Mean = ? Median = ? Standard deviation = ? Relative standard deviation = ?…

Q: The tolerance of a Class A 100 mL transfer pipet is +0.08 mL. A student uses an uncalibrated Class A…

A: The Size of transfer pipet = 100 mL Tolerance transfer pipet is = ± 0.08 mLTotal transfer of…

Q: A technician determines the concentration of calcium in milk using two instrumental methods. If…

A: The F test, named after statistician Ronald Fisher, is a hypothesis test used to compare the…

Q: 2) What is the relative error in delivering a volume of 18.28 mL from a class A 25 mL buret?…

A: The objective of the question is to determine the relative error of the given measurement.

Q: 4.00 (±0.01) mL4.00 (±0.01) mL Class A transfer pipet is used to transfer 4.00 mL4.00 mL of a 0.300…

A: While diluting a solution, the dilution equation used is: M1V1 = M2V2

Q: A set of samples from an abandoned industrial site detected a suspected groundwater contaminant at a…

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Q: Identify the following errors as systematic or random. A thermometer is placed such that the bulb…

A: A systematic error is defined as an error that occurs when the same thing is changed predictably. In…

Q: To determine the organic material in a dried lake bed, the percent carbon by mass is measured at two…

A: By applying F-Test, we can figure out whether the standard deviations are significantly different or…

Q: Estimate S/N for the following data

A: To Calculate: S/N ratio of given data From the graph, the values obtained are: Blank 1 Blank 2…

Q: Repeat this process by adding 25 mL measured with a beaker, and 25 mL measured with a graduated…

A: Given data:To determine:Coefficient of Variance (CV) of the data

Q: 795 centigram borax was at 25 °C. After adding the sample, the graduated cylinder read at 35 ml, a…

A: Centigram  to gm =centigram/100 In the above question, 795 centigram =795/100 gm =7.95 gm =0.00795kg

Q: The concentration of caffeine in an energy soft drink was determined by standard addition using…

A: Given, mass of caffeine = 0.09850 g area of water =25.0 cm3