Answered: Titration of an oxalate sample gave the…

Titration of an oxalate sample gave the following percentages: 15.07 % , 15.58 % , and 15.42 % . Calculate the average. Calculate the standard deviation.

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter2: Basic Statistical Analysis With Excel

Section: Chapter Questions

Problem 4P

See similar textbooks

Related questions

Q: Find the standard deviation (if the mass of KHP in three experimental solutions are 0.467,0.48, and…

Q: The same chloride analysis but using a new method for which the standard deviation was not known,…

Q: Chemistry Given the following spectrophotometric data, what is the concentration of the sample?…

Q: (3) In a titration, the % analyte is computed from the following equation: Vol (titrant) x M…

Q: The concentration of chloride in seawater can be determined by a flow injection analysis. The…

A: To find concentration of Cl- in the sample at an absorbance of 0.443.

Q: Calculate the mean and standard deviation for the following set of analytical results: 34.65,…

A: Please find your solution below : Mean is calculated by taking the sum of all the values of data and…

Q: Analysis of several plant-food preparations for potassium ion yielded the following data: Sample…

A: As per our company guidelines we are supposed to answer the first question only as it is a lengthy…

Q: A new method for the determination of anthracene in crude oil is in the developmental phase.…

Q: Consider the data result in determining the presence of copper has a mean value of 50 mg and…

A: We need to find out the standard deviation ( σ ). Standard deviation is related with the…

Q: Why chromatography is an important tool for analysis of organic compounds?

A: Chromatography is the most useful technique for identification or separation of different compounds…

Q: Chemist Angelica Benjamin Mai Jesus Measurements 35.6 ppt 35.2 ppt 36.2 ppt 31.7 ppt 37.4 ppt…

A: Precision is defined as the closeness of the measurements to each other. More the closeness of data…

Q: Give the standard deviation of these three molaritys. 0.0366 0.0373 0.0370

A: Standard deviation: Standard deviation tell about the variability(error) in data set. If standard…

Q: he most convenient way of expressing the random error, regardless of the concentration or weight of…

A: The most convenient way of expressing the random error, regardless of the concentration or weight of…

Q: A solution of Ba (OH), was standardized against 0.1208 g of primary-standard-grade benzoic acid,…

A: Given 0.1208 g of benzoic acid, volume of base = 43.94g We have to find molar concentration of base…

Q: A volume of 250 ml of a 0.05 M solution of a reagent of formula weight (relative molecular mass) 40…

Q: A method for the detection of morphine is used to generate a calibration curve in which the assay…

A: The explanation is given below-

Q: Analysis of a blood sample for inorganic phosphate gives (4.5, 4.20, 3.6, 4.17, 3.88) mg% phosphate.…

Q: The ratio of the number of atoms of the isotopes 69Ga and 71Ga in eight samples from different…

Q: Calculate the standard deviation of the data below. 2.4 ppm, 2.1 ppm, 2.1 ppm, 2.3 ppm, 1.5 ppm

A: Standard deviation:The standard deviation is a measure of the variation in a given set of data. A…

Q: Estimate the absolute standard deviation (or uncertainty) for the results of the following…

A: a. y = 2.998(±0.002) - 3.98 (±0.15) + 9.035 (±0.002) = 8.0531 where 'u' is the Absolute standard…

Q: What are the differences between systematic and random errors and how do they effect accuracy and…

A: As per the Bartleby guidelines, an expert is allowed to answer one question at a time. Please repost…

Q: You are developing a procedure for determining traces of copper materials using a wet digestion…

Q: The concentration of chloride in seawater can be determined by a flow injection analysis. The…

A: We are given Cl- concentration and absorbance data for calibration standards. We have to find Cl-…

Q: A titration was carried out to determine the volume of base needed to neutralize an acid. Five runs…

A: The neutralization reaction or the acid-base reaction is often employed as the basis for determining…

Q: Analysis of Percent Organic Matter of * a soil sample was conducted and the data are shown below.…

Q: where the uncertainties are all standard deviations for infinite -sized samples. How will you report…

A: P = (4.75 +- 0.03) - (0.1198 +- 0.0008)(15.00 +-0.04)(14.01)*(100) / (750.0 +- 0.3) = (4.75 +- 0.03)…

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

Q: Replicate water samples are analyzed for water hardness with the following results: 102.2, 102.8,…

A: Data measurements:

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: In analytical chemistry, when and why do we do representative sampling?

A: Representative sample is defined as the small portion of the overall sample to determine the…

Q: Calculate the standard deviation and % error using the following data table if the theoretical…

Q: Use a spreadsheet to calculate the mean and standard deviation of the data set. 54.99, 54.40, 54.60,…

A: Given - expected values are 54.99, 54.40, 54.60, 54.63, 54.36

Q: Analysis of plant-food preparation for K ion yielded the following data; A: 7.40 % ; B: 7.50 %: C:…

A: Given: The data for K+ ion yield of plant-food preparation: A: 7.40%; B: 7.50%; C: 7.55% We have to…

Q: 8) Two different analytical methods are compared for determining Ca. The following are two sets of…

Q: A sample is analyzed five times by the same method to give the following results: 4.54, 4.89, 5.23,…

A: We have to calculate standard deviations and relative standard deviations.

Q: Calculate the standard deviation of the four trials below. Trial 1: 49.59 grams Trial 2: 51.25…

A: X X^2 49.59 2459.1681 51.25 2626.5625 49.78 2478.0484 50.19…

Q: replicate determination of the lead content of a blood sample (0.752, 0.756, 0.752, 0.751 and 0.760…

Q: 1. A student performed this experiment and obtained the following concentration values: 0.02813 M,…

A: As per our guidelines we can only solve first question. Please resubmit other questions as next…

Q: Determination of hardness by complaxo matric method ( EDTA method).

A: Hardness of water is because of calcium and magnesium salts that are dissolved in water. It can be…

Q: Mean [KIO3] (based on titration) = 0.02451 mol L-1 Standard deviation in the mean [KIO3] mol L-1…

A: [KIO3] mol L-1 (χi - μ) (χi - μ)2 0.02459 0.00008 6.4 * 10-9 0.02462 0.00011 1.21 * 10-8…

Q: Since this standard deviation value is close to the ϭ value, the iron concentration of 18.5 µg Fe/mL…

Q: The protein concentration of a protein isolate was determined using the Bradford assay. Five…

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: volume

A: ✓The relative standard deviation is widely used in analytical chemistry to express the precision and…

Q: standard deviation of concentration (g/mL)

A: Given information: X= cesium iodide

Q: Given the data obtained from the voltmeter ranking of metals, calculate the standard deviation for…

A: Given: The given data is:

Q: As part of an analytical chemistry laboratory course, a student measured the Ca2+ content in two…

A: Given Data: Method City-Supplied Drinking Water Well-Supplied Drinking Water FAAS 57.57±0.68…

Q: Calculate the standard deviation of the following results: 20,19,18,10,15,14

Q: A standard curve for glucose analysis was prepared.The slope (m) was found to be 1.341 while the…

A: Given: Slope(m) = 1.341 y-intercept = -0.333 Absorbance (y) = 0.151

Question

Titration of an oxalate sample gave the following percentages: 15.07 % , 15.58 % , and 15.42 % .

Calculate the average.

Calculate the standard deviation.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Trending now

This is a popular solution!

Step by step

Solved in 5 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Molarity trail 1 0.0366 trail 2 0.0373 trail 3 0.0370 Calculate the standard deviation. Calculate the Relative Standard deviation of molarity to 3 sig figs.
The ratio of the number of atoms of the isotopes 69Ga and 71Ga in eight samples from different sources was measured in an effort to understand differences in reported values of the atomic mass of gallium: Sample 69Ga/71Ga Sample 69Ga/71Ga1 1.526 60 5 1.528 942 1.529 74 6 1.528 043 1.525 92 7 1.526 854 1.527 31 8 1.527 93 Find the (a) mean, (b) standard deviation, (c) variance, and (d) stan-dard deviation of the mean. (e) Write the mean and standard deviation together with an appropriate number of significant digits
A method for the detection of morphine is used to generate a calibration curve in which the assay response (y) is plotted versus morphine concentration (x, in mg/L). This gives a straight line with a slope (m) of 0.241 and a y-intercept (b) of 0.011, where y = mx + b. The slope of this line has a standard deviation of ±0.007, and the standard deviation of the intercept is ±0.006. If the sample from an athlete gives a response of 0.506 ± 0.013 in this method, what is the concentration of morphine in the sample and estimated precision of this concentration?
Give the standard deviation of these three molaritys. 0.0366 0.0373 0.0370
Find the standard deviation (if the mass of KHP in three experimental solutions are 0.467,0.48, and 0.48 and the volume of NaOH IN THE exp are 22,29,24 respectively in order to the masses of KHP ) the average molarity of NaOH in each experiment = 5.30x 10^-4 + 4.137x10^-4 + 5.0x10^-4 divided by 3 = 4.81x10^-4 ).
A solution is prepared by weighing 5.0000 g of cesium iodide into a 100-mL volumetric flask. The balance used has a precision of 0.2 mg reported as a standard deviation, and the volumetric flask could be filled with a precision of 0.15mL also reported as a standard deviation. What is the estimated standard deviation of concentration (g/mL)?
The density of kerosene is 0.810 g/mL and was measured using a hydrometer with a standard deviation of ±0.015. Calculate the volume and propagate the error if the mass of the kerosene is 1.67 g.
A volumetric calcium analysis on samples of the blood serum of a patient believed to be suffering from a hyperparathyroid condition produced the following data: mmol Ca/L = 3.10, 3.08, 3.28, 3.15, 3.26, 3.12, 3.14, 3.18, 3.25, 3.11, 2.95. Calculate: Mean Standard deviation Coefficient of variation What is the 95% confidence interval for the mean of the data, assuming no prior information about the precision of the analysis? Apply the Q test to the following data sets to determine whether the outlying result should be retained or rejected at the 95% confidence level. ( work on the first measurements according to your case)
For the determination of iron in used jet engine oil, 30 analyzes with 3 repetitions each were made by atomic absorption method and the standard deviation was found s=2.4 µg Fe/mL. Since this standard deviation value is close to the ϭ value, the iron concentration of 18.5 µg Fe/mL(a) by a single analysis,(b) as the average of the two analyzes,(c) Calculate the 80% and 95% confidence intervals if found as the mean of four analyses.
6 A new method for the determination ofanthracene in crude oil is in the developmental phase. Preliminary results using the new method give a standard deviation of 3 ppm when 5 replicates are used. The ‘traditional’ method gives a standard deviation of 7 ppm when 4 replicates are used. Is there a significant difference in the standard deviations for these methods at 95% CL?
Trial Mass (g) 1 48.8839 2 49.0099 3 49.1121 4 48.9342 5 49.0338 6 48.7798 Calculate mean and standard deviation in the correct number of sigfigs
Calculate the mean and sample standard deviation for the following data: 90.0, 90.0, 85.0, 83.0, 80.0, 78.0, 77.0, 75.0, 70.0. Group of answer choices 79.8 ±± 5.83 79.8 ±± 6.23 80.9 ±± 6.75 80.9 ±± 6.37