Exercise calculate the mean and standard deviation of the following set of analytical data. 15.67, 15.69, 14.89, 15.91, 16.01 average=15.634, Standard deviation=0.4503 average=15.634, Standard deviation=0.4403 average=15.436, Standard deviation=0.4403

Exercise calculate the mean and standard deviation of the following set of analytical data. 15.67, 15.69, 14.89, 15.91, 16.01 average=15.634, Standard deviation=0.4503 average=15.634, Standard deviation=0.4403 average=15.436, Standard deviation=0.4403

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter6: Random Errors In Chemical Analysis

Section: Chapter Questions

Problem 6.14QAP

See similar textbooks

Related questions

Q: Gaseous water and solid calcium oxide are produced by the decomposition of solid calcium hydroxide.…

Q: When 1690.0 joules of energy is added to a 140.0 gram piece of unknown substance, the temperature of…

A: When heat energy is given to a system its temperature increases. This is expressed as : Heat added =…

Q: Each capsule contains 850 mg of the drug. The number of capsules needed to provide 50 mg/kg/day for…

Q: What is the equilibrium constant (in atm to three decimal places) of HBr for the following reaction…

Q: Curved arrows are used to illustrate the flow of electrons. Follow the curved arrows and draw the…

Q: 9) Write Newman projections for the gauche and anti-conformations of 1,2- dibromoethane…

A: BrCH2CH2Br

Q: the rate of the reaction? Given the equation 2 Na(s) + 2 H₂O(1)→ 2 NaOH(aq) + H₂(g), which of the…

Q: , Sect. 1-2) t ot ot pt pt [References] A 19.9 g piece of silver was heated to 98.0 °C in boiling…

Q: Gaseous ethane CH3CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide…

Q: Ammonium sulfate is added to an unknown mixture of ions. A precipitate forms. The solution is…

A: To identify the cations present in giving mixture of ions.

Q: Explain the effect of two substituents in the ring on the reactions. Circle the major product:

A: Given effect of two substituents in the ring on the reactions Find major product

Q: 1 2 Assign configuration, give IUPAC name HO Br HO Assign configuration, draw a diastereomer win Br…

A: As per the student's request, I am solving question number-2 . For the absolute configuration we…

Q: A student wants to measure 15.00 ml of 6M HCI in the lab (very high ACID concentration) and is given…

A: According to the question we have, Hydrochloric acid with a very high acid concentration. The molar…

Q: A molecule with the molecular formula of C3H6O2 produces the IR spectrum shown below. Draw a…

A: IR spectroscopy is used to determine the functional group of a chemical compound.

Q: 3. This illustration shows the energy change during the following reaction: CH4(g) + 2 O₂(g) →…

A: Given that, CH4(g)+2O2(g)------->CO2(g)+2H2O(g) Energy changes during an exothermic reaction in…

Q: Calculate the standard enthalpy of formation for MgCO3(s). Use the standard enthalpy of formation…

A: The standard enthalpy of formation for MgCO3(s) is The given reactions are A.…

Q: 1. The bonds in order of increasing ionic character. Place the bond with least ionic character at…

A: Here it is given to arrange the different types of forces according to their strongness and weak…

Q: Consider the following reaction where Ke = 1.29x10-2 at 600 K: COCI₂ (9)CO (g) + Cl₂ (g) A reaction…

A: To check the answers, we need to calculate the value of Reaction quotient (QC) for given moles and…

Q: The formula H2O refers to Group of answer choices A) Two hydrogen molecules and one oxygen molecule.…

A: Water molecule is represented as H2O.

Q: 4. Consider the following 3 step reaction mechanism: Step 1 H₂ 2H fast Step 2 Step 3 H + HCO H + CO…

A: Recall the given reaction mechanism -Step 1 H2 ↔ 2 H fastStep 2…

Q: Ammonium phosphate NH43PO4 is an important ingredient in many fertilizers. It can be made by…

A: A balanced chemical equation contains an equal number of atoms of each elements on both sides of the…

Q: The synthesis given below for m-propylbenzene from benzene is incorrect. Propose a suitable…

A: In nitrobenzene , nitro group is deactivating group so it deactivates benzene ring and it not give…

Q: Based on your research and observations, classify ethanol, isopropanol, and tert-butanol then draw…

A: Here we have to classify the following given alcohols and to write their line angle structures.

Q: Starting with benzene, prepare this compound. H₂C OH OH

Q: One day in lab, while washing some glassware, your friend Elsa (an expert chemist) says this: "Metal…

Q: Calculate pH for a weak base/strong acid titration. Determine the pH during the titration of 35.9 mL…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: The absorbance of a mixture containing compounds A and B was to have an absorbance of 0.24 at 250 nm…

A: Given that, the absorbance of a mixture containing compounds A and B was to have an absorbance of…

Q: Name the alkene(s) with the molecular formula Cells that have a single methyl branch and that do not…

A: Given - Molecular formula of alkene = C6H12

Q: If a compound weighs 125 g and contains 2.5 mole, what is its molecular mass?

Q: A open-ended manometere was attached to a vessel containing argon. The difference in the mercury…

A: First convert the difference in height using conversion factor between cm and mm and then use…

Q: QUESTION 12 For the single displacement reaction below predict products, use charges to write the…

A: Balanced reaction can be written by considering possible oxidation state.

Q: lease answer fast! Cyclohexane (C6H12) undergoes a molecular rearrangement in the presence of AIC13…

A: Given Kc = 0.143 at 25°C C6H12 =0.200 M MCP=0.100 M,

Q: Consider a 0.250 M solution of KCl (molar mass= 74.55 g/mol) How many moles of KCI are in 168 ml of…

A: The moles of KCl in the solution is = 0.041 mol

Q: 0.8 0.6 0.4 3000 INFRARED SPECTRUM www 2000 Wavenumber (cm-1) (https://webbook.nist.gov/chemistry)…

A: In the given IR spectrum, the characteristics peak at 3050cm-1, 1620cm-1, 900cm-1 and 720cm-1. The…

Q: CrO2, Zn²+, Al³+ (8b) NH, Al(OH)3 CrO2-, Zn(NH3)4²* In step 8b of the "GREEN" flow chart NH3 is…

A: Qualitative analysis of captions in the sample involves solubility rules, some metal ions form…

Q: balanced chemical equation for the decomposition of CaCO3 on heating 2.balanced chemical equation…

Q: The reaction PC13(g) + Cl₂(g) = PC15(g) has AH = -87.9 kJ, AS° = -170 J/K, K = 3.32 x 10 at 298 K.…

Q: Are we able to completely separate pigments from each other using paper chromatography?

A: Paper chromatography separation of pigments

Q: In a gaseous NaBr particle, the internuclear distance is 2.95 x 10-10 m. Using the following data…

Q: At atom that has gained or lost electrons is called an ion. Group of answer choices True False

Q: Use standard enthalpies of formation from Table 7.2 to determine the enthalpy change at 25 °C for…

Q: 1. How many types of Carbon and Hydrogen atoms are in the following compound? # Chemically different…

A: In the given compound the carbonyl group is attached to the same types of alkyl groups. Hence both…

Q: Draw the structure of (E)-2-chloro-2-pentene.

Q: In 1993 the Minnesota Department of Health set a health risk limit for beryllium in groundwater of…

Q: 5. The product of the reaction below gives the IR spectrum shown. Although you are unfamiliar with…

A: IR spectroscopy is an important tool for the determination of the functional group in the compound.…

Q: 8.17 Name each of the following compounds: 7 a. CH₂CH₂CH₂OCH₂CH(CH3)2 b. CH₂OCH₂CH(CH3)2 C.…

A: As the guidelines of the Bartleby, we are supposed to answer the first three sub-parts and to get…

Q: 13. For the reaction A +2 B→ AB2, the following data were obtained: Run [A] (mol/L) [B] (mol/L) Rate…

Q: Calculate the volume of stock 1.25 g/L dye solution needed to prepare 100.00 mL of a 1.00 g/L dye…

Q: If KOH solution were used in Part B instead of Ba(OH), solution, then the chem A(OH)2 solution,…

A: Conductivity of a solution depends on the number of ions present in the solution. More the number…

Q: 8. Strontium-90 has a half-life of 28 days. ovn brs (a) A sample has a mass of 50 mg initially. Find…

Question

Exercise : calculate the mean and standard deviation of the following set of analytical
data.
15.67, 15.69, 14.89, 15.91, 16.01
average=15.634, Standard
deviation=0.4503
average=15.634, Standard
deviation=0.4403
average=15.436, Standard
deviation=0.4403

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 with 2 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

Please help. I don't understand (is it possible to show the steps and formulas...?) thank you! Question: Calculate the percentage error between the slope and the calculated value of P*V. Repeat for each value of P*V
What component of the sample causes an error in the analysis by increasing or decreasing the quantity being measured? Group of answer choices solvent analyte interference standard
Equation for Standard Curve of the concentration of CuSO4 is A815= 0.0101[CuSO4]-0.0017, R2=0.9994. what is the concentration in molarity of the unknown CuSO4 concentration and include standard deviation for the data below. Serial dilution were preformed. absorbance from stand curve is 815 Dilution Ratio Absorbance (nm) 1:2 1.7412 1:4 0.8569 1:8 0.4167 1:16 0.1958
Chemistry help solve part d to h. the standard deviation is 0.0043m and the mean is 0.1052m.
answer letter g
Hydrocarbons in the cab of an automobile were measured during trips on the New Jersey Turnpike and trips through the Lincoln Tunnel connecting New York and New Jersey. The total concentrations ( ± standard deviation) of m- and p-xylene wereTurnpike: 31.4 ± 27.0 μg/m3 (32 measurements)Tunnel: 54.9 ± 29.8 μg/m3 (32 measurements)Do these results different at the 95% confidence level?
Analysis of several plant-food preparations for potassium ion yielded the following data: Sample Percent K+ 1 3.90, 3.96, 4.16, 3.96 2 4.48, 4.65, 4.68, 4.42 Find the mean ; standard deviation variance and RSD for each sample.
Calculate the following. i) The slope (m) and the standard deviation of the slope. ii) The concentration of Na ( CA) in the unknown.
In thin-layer chromatography, what is the Rf value of a compound if the solute travels 2.9 cm and the solvent moves 4.5 cm after 5 minutes? Note: Express answers up to TWO decimal places.
Q5. Two methods were used to measure fluorescence lifetime of a dye. The average result for Method 1 is = 1.382 ns with a standard deviation of s1 = 0.039 and n1= 7. The average result for Method 2 is = 1.346 ns with a standard deviation of s2 = 0.015 and n2= 5. Is there a difference between the two methods at the 95% confidence level using F test?
Please don't give incorrect answer!!!
(a) During the analysis of water sample by argentometric titration, results obtained are as follows: Experiment1 2 3 4 Volume 15.5, 15.2 ,15.1 ,15.4 A)Calculate average deviation and relative average deviation for the given data. (b)Calculate the molecular weight of an unknown acid if 8.5 g of it is dissolved in 200.0 ml of water and requires 50.0 ml of 1.5 M sodium hydroxide for complete neutralization .