An instrumental method was validated by running an analysis on a standard solution with a known concentration of 1.00 mM. Results from a series of trials are given below. Do the two methods agree or not? How confident are you? Replicate C/ mM 1 1.074 2 1.035 3 1.048 4 1.028 1.059 6 1.037

An instrumental method was validated by running an analysis on a standard solution with a known concentration of 1.00 mM. Results from a series of trials are given below. Do the two methods agree or not? How confident are you? Replicate C/ mM 1 1.074 2 1.035 3 1.048 4 1.028 1.059 6 1.037

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 12P

See similar textbooks

Related questions

Q: The standard addition method is used to analyze a sample of a river water for mercury. Solution A is…

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

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

Q: How many replicate measurements are needed to decrease the 95 and 99% confidence limits for the…

Q: The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10-5 so if a professor made 1825 mL of a…

A: In this question, we want to determine the mass of the SO42- ion in grams unit. You can see details…

Q: 100 ml boiled cooled and filtered water sample takes 9.6 ml of M/50 EDTA in titration. The…

A: The hardness degree can be calculated in term of CaCO3 equivalent asDegree of Hardness=Wt. of…

Q: A 10.00-g sample containing an analyte was transferred to a 250-mL volumetric flask and į diluted to…

A: Solution - According to the question - Given - In the spiked sample, the signal is due to 10 ml of…

Q: Table 1. Data on EDTA Standardization Weight of CaCO3 (g): 0.2003g Trial Volume of EDTA (mL)…

A: Each of Ca2+ is neutralised with 1 mol of EDTA. Also, No of moles = Mass / Molar mass

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: A 100.0-ml sample of boiler feed water, analyzed for hardness, required 36.8 ml of 0.0386 M EDTA to…

Q: A banned pesticide, DDT, is analyzed through gas chromatography. A DDT standard is diluted…

A: In analytical chemistry a calibration curve or standard curve, is plotted to determine the…

Q: A 100.0-ml sample of boiler feed water, analyzed for hardness, required 23.8 ml of 0.0146 M EDTA to…

Q: A second spectrophotometric method for the quantitative analysis of Pb2+ in blood yields an Ssamp of…

A: The value of sensitivity of the method for the analyte (kA) is calculated using sample signal…

Q: A compound X is to be determined by UV/Visible spectrophotometry. A calibration curve is constructed…

A: The light absorbed by the solution is known as absorbance.

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 scientist wishes to measure the concentration of methyl benzoate in a plant stream by gas…

A: We are given for peak A of methyl benzoate of 1.37 mg/ml gave an area of 301, and peak B of butyl…

Q: An analyst determines the Cl^- content of rain water with ion chromatography. The data for the…

A: There is a high probability that an analytical instrument will produce a signal noise whenever a…

Q: Consider the following method for the analysis of cocaine (MW 303.35) powder. "Dissolve about 600 mg…

A: Given the mass of cocaine powder weighed = 606.3 mg molarity of HClO3 used = 0.09978 M Volume of…

Q: A 0.1 M solution of acid was used to titrate 10 ml of 0.1 M solution of alkali and the following…

A: Given data :- 0.1 M solution of acid was used to titrate 10 ml of 0.1 M solution of alkali Volumes…

Q: The standard addition method is used to analyze a sample of a river water for mercury. Solution A is…

A: Given, Percent transmittance of solution A = 56 % Percent transmittance of solution B = 33 % Percent…

Q: The homogeneity of the chloride level in a water sample from a lake was tested by analyzing portions…

Q: nL of the unknown were pipetted into each of five 50.0-ml volumetric flasks. Various volumes of a…

Q: A 500. µl aliquot of a caffeine unknown is diluted to a total volume of 10.00 mL. A calibration…

A: The diluted solution has area = 3.07 mVcm Volume of diluted solution = 10 mL

Q: K QRSTU v Q2b: Serial Dilution (M,V=M,V2) Dilute aliquots of the previously made solution solution…

Q: 1. What is the MW of the analyte? 2. What is the meq of the analyte? 3. What will be the weight (in…

A: Since you have asked a question with multiple subparts we will answer the first three for you. To…

Q: A scientist wishes to measure the concentration of methyl benzoate in a plant stream by gas…

A: Case 1: Methyl benzoate is represented by A and Butyl benzoate is represented by B. Calculation of…

Q: A scientist wishes to measure the concentration of methyl benzoate in a plant stream by gas…

A: The given type of aanylysis called the Single Point Internal Standard method. Internal response…

Q: In the Analytical Chemistry laboratory, one of the B.Sc student Ms. Fatma wanted to analyze the…

A: Spectrophotometer

Q: I got a task in analytical chemistry to calibrate, standardize, verify and validate an analytical…

A: It is said that every location in the world is positioned differently in relation to magnetic…

Q: . The solubility of SrCO3 is 0.0011g per 100 mL at 20ºC. Calculate the Ksp value for this…

Q: The standard addition method is used to analyze a sample of a river water for mercury. Solution A is…

A: In the above question, mecury Determination have to perform in undiluted sample. Most common method…

Q: 25 ml of pickled brine was taken from an apple pickled with vinegar and diluted to 500 ml, 25 ml of…

A: The dilution law is shown below: N1V1 = N2V2 where; N1 = normality of unknown acid/base V1 = volume…

Q: Please provide a detailed solution for the following question You have constructed a standard curve…

Q: Caffeine eine benze, and aspartame content of mountain dew soda was determined using reverse phase…

A: Given: Concentration of standard Caffeine used = 0.70 mg/mL Concentration of standard Benzoate used…

Q: Which error will lead to negative deviation from the theoretical Keq? a. cuvette was filled to the…

A: Which error will lead to negative deviation from the theoretical Keq. Answer : Correct…

Q: Caffeine, benzoate, and aspartame content of mountain dew soda was determined using reverse phase…

A: Given: Concentration of standard Caffeine used = 0.70 mg/mL Concentration of standard Benzoate used…

Q: ▪ A pharmaceutical analyst needs to do quality control of a sodium furosemide solution. The max for…

A: Absorbance = Absorptivity coefficient × Concentration × Path length Path length = 1 cm Absorptivity…

Q: A solution containing 3.51 mM X (analyte) and 1.67 mM S (internal standard) gave peak areas of 3505…

A: Given : Solution containing 3.51 mM X(analyte) & 1.67 mM S(internal standard) gave…

Q: Consider the following method for the analysis of cocaine (MW 303.35) powder. "Dissolve about 600 mg…

A: For acid base titartion: Nacid x Vacid = Nbase x Vbase Since the given acid is monoprotic and there…

Q: Table 1. Room Temperature Raw Data Trial 1 Trial 2 Temperatue ("C) |21.5 °C |21.5 °C |Concentration…

A: During titration the solution of known molarity and volume taken in burette is called titrant. In…

Q: potassium hydrogen phthalate is a primary standard used to measure the concentration of NaOH…

A: Due to the buoyancy force by air, the mass of an object measured in the air is always appear to be…

Q: statement is correct?

A: In Analytical Chemistry, an internal standard is defined as a chemical substance that is added to…

Q: In the Analytical Chemistry laboratory, one of the B.Sc student Ms. Fatma wanted to analyze the…

A: (i) Given: Dilution factor is 10. The volume of solution B(diluted solution) is 250 mL.…

Q: der the peaks for pentafluorobenzene and benzene in the gas chromatogram shown here. The elution…

A: Given data: Elution time for unretained solute = 1.06 min Length of column = 30 m Diameter of column…

Q: Often the analyst will compare known quantities of analyte to unknown quantities of the material to…

A: Analytical chemistry is a branch of chemistry that deals with the separation and identification of…

Q: 2. Determining the Acid Content of Vinegar Trials A В C Volume of Vinegar used (ml) 25.00 diluted to…

Q: volume

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

Q: 3. Calculate the percent purity of compound X using D and E as recrystallization solvent. % purity =…

A: Given values : Option B is correct answer

Q: ASSAY Calibration solutions Calibration solutions of naproxen in the range 5 – 25 μg/mL were…

A: Solution- Data given- 12.3819 g were crushed to a fine powder, acetic acid (0.05 M)

Q: Standard Solutions for FENCS2* Ion Beer-Lambert Plot mL of 2.00 x 101 M Fe(NO,)3 in 0.10 M HNO, mL…

Question

100%

3. An instrumental method was validated by running an analysis on a standard solution with a known
concentration of 1.00 mM. Results from a series of trials are given below. Do the two methods agree
or not? How confident are you?
Replicate C/ mM
1
1.074
2
1.035
3
1.048
4
1.028
1.059
6
1.037

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

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Quality Assurance and Calibration Methods

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

Sample IdentificationCodeConcentration of M%TA=2-log(%T)Q50004.00 x 10-417.90.75Q50013.20 x 10-425.00.6Q50022.40 x 10-435.70.46Q50031.60 x 10-450.20.3Q50048.000 x 10-570.80.15SampleIdentificationCode%TA=2-log(%T)AMQ0210150143.70.359518560.360.000192Q0210150244.10.355561410.360.00018Q0210150343.80.358525890.360.00017Q0210150444.10.355561410.360.00018Q0210150543.80.358525890.360.00017What was their percent error?43%Does Batch 021015 meet legal requirements?No, because it is not between 2.85 * 10(4) and 3.15 * 10(4)Well #DropsBluedye1234567891012345678910Drops 9Distilled water876543210Concne 0.26tration0.52Test Tube #0.781.041.3Solutions3Concentration (M)2.082.32.6Concentration (ppm)1:1 dilution11.82Starting Dilution21.562:1 dilution0A.Zero standard0Was your calibration curve as linear as you expected?B.Did you experience any â€œdriftâ€ of the resistance readings?C.What is the equation of your best-fit line?D.What commercial drink did you analyze?E.Assuming…
Chemistry help solve part d to h. the standard deviation is 0.0043m and the mean is 0.1052m.
The following set of chloride on seperate all quots Of a pette pooled Serum obtaned from SMu chemistry lab here reporterd by (43) students : (03:106; (07 and 114 meqlL. analysis One value qppears suspect. Help these Students to determine if it can be ascribed to the acudental 95% Confidence level. error ot
I want a abstract of the hardness experiment and an explanation of the theory and objectives Thank you
Sheet 5 From the following data determine the following: Define outlier and then identify the outlier in the data. Determine if the outlier should be kept of discarded from the data. Trial 1 2 3 4 HCl (mL) 22.3 28.4 29.8 29.3 NaOH (mL) 35.2 35.1 34.9 35.0
7) The homogeneity of the chloride level in a water sample from a lake was tested by an analyst. Below are the concentration in parts per million (ppm) of Cl: 27.32, 27.22, 27.21, 27.24, 27.20 i. Determine the mean and median. ii. Calculate the confidence limit at 90%. iii. Identify a possible outlier and use the Q-test to determine whether it can be retained or rejected at 90% confidence level
If an instrument gives a response of 1240 for a standard containing 8 ppm of a substance, how much if this substance is in a sample that gives a response of 1705? Are any assumptions needed?
1-Calculate the distribution of 6 particles over two chambers? 2- Calculate the distribution of 8 particles over two chambers?
For EACH type of gravimetric analysis:Give actual applications of each analysis. Include the SPECIFIC methodology for each sample chosen.
C. Nickel in a sample was determined using a new procedure where six replicate samples resulted in a mean of 19.65% and a variance of 0.4524. Five replicate analyses where conducted using a standard procedure resulting in a mean of 19.24% and a variance of 0.105. If the pooled standard deviation was +0.546, is there a significant difference between the two methods?
4. A fat sample with combination of acids contain standard hydrochloric acid for blank and sample with 8mL and 5mL respectively. The normality of the standard hydrochloric acid is 0.93N and the weight of the sample is 3 grams. Calculate the saponification value.
Table 1: Standardization Data Trial 1 Trial 2 O145504 Mass of KHP 04536 Initial burette reading 0.05ML 12.3 ML Final burette reading 12.8 a6.omL Volume of base used ר.12 13.2 mL Data Analysis: KH Cg Hg Da (MOIAR MASS 2041ag) 1. Calculate the molarity of base for each trial. You must use dimensional analysis – show all unit conversions (hint: start with grams of KHP used). Review the balanced equation for KHP and NaOH you wrote in Expt 11 part 1. (204.29 TRIAI 1: 0.4550g. Average: Trial 2: Trial 1: with 1875 mL of your base (use the average