Practice Problem 2.2ANALYTICAL CHEMISTRY1. A chemist working in a hospital clinical laboratory obtained the following values foruric acid in blood serum: 4.63, 4.58, 4.72, 4.21, 4.67 and 4.65 %. (a) Use the 95%confidence level to test any dubious values. What value should be reported as the b)mean? c) sd? d) CV?2. Quantitative analysis student Analytical analyzed an ore sample for its lead contentand obtained a mean of 4.75% Pb for five measurements. If the certified true value is4.50%, what is the (a) percent error? (b) percent accuracy?3. Identify the data set with the highest (a) precision and (b) accuracy.Data setMeanPercent ErrorCertified truevalueStandarddeviation10.5000.4440.0411.001.330.25350.0045.200.041100.099.13.22COLLEGE OF SCIENCENM423Click to add notesP

Since you have posted multiple questions, the answer for first question is given below. Kindly…

1. A chemist working in a hospital clinical laboratory obtained the following values for uric acid in blood serum: 4.63, 4.58, 4.72, 4.21, 4.67 and 4.65 %. (a) Use the 95% confidence level to test any dubious values. What value should be reported as the b) mean? c) sd? d) CV?

1. A chemist working in a hospital clinical laboratory obtained the following values for uric acid in blood serum: 4.63, 4.58, 4.72, 4.21, 4.67 and 4.65 %. (a) Use the 95% confidence level to test any dubious values. What value should be reported as the b) mean? c) sd? d) CV?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: a. Write the bondline structure of the osazone produced by glucose. b. Identify two monosaccharides…

Q: 1. What are [H3O+], [OH-], and pOH in a solution with a pH of 8.59 at 25 oC? Full Solution 2. The…

A: Since we know that, At 25°C , pH +pOH = 14 pH = - log10[H3O+] pOH = -log10[OH-]

Q: Which of the Lewis structures shown below has a -2 formal charge on nitrogen? [61] [63] [689] A O…

Q: reaction is most likely to be spontaneous when during the course of a reaction: the energy…

A: For the reaction to be spontaneous, ∆G should be negative. ∆G = ∆H - T∆S

Q: CH 3 7. Circle the one more stable structure in each of the following pairs of molecules or ions:…

A: 7. a. tertiary carbocation is more stable than secondary carbocation. b. Trans olefin is more stable…

Q: Find the pH of 0.15 M HClO and 0.25 M NaClO. Ka of acid at 25 C is 3.98 x 10^-8

A: Given data The concentration of HClO, [HClO] = 0.15 M The concentration of NaClO, [NaClO] = 0.25 M…

Q: 73. C✓ 73. Provide the final product of the following reaction. OMe heat + Me₂NOMe ? OH Me OMe NMe…

A: Eschenamoser-Claisen Rearrangement: Claisen rearrangement reaction employing allylic alcohols and…

Q: 6. Draw the products formed upon Hofmann Elimination of the two isomeric amines below. (Excess CH3-I…

A: Detail mechanistic pathway is given below

Q: What Characteristics of Potassium minerals makes them suitable to be used as fertilizers

A: 1) Potassium is needed to complete many essential functions in plants, such as synthesizing proteins…

Q: Thermal changes are the focus of he quantity of energy released or absorbed is determined by…

A: A is the correct answer Thermochemistry - The branch of Physical Chemistry that deals with the study…

Q: Ⓒ Draw the structure of the compound whose sper spectroscopy data provided, сонго 2.6 ppm, 1H!…

A: NMR spectroscopy is a very important tool for the determination of the structure of the organic…

Q: Write the K, expressions of a hypothetical p

A: Acid = H4A It dissociated as, H4A(aq.) <----> H+(aq.) + H3A-(aq.) Ka1 = [H+][H3A-]/[H4A]…

Q: What is the principle involved on how a simple distillation can isolate the eugenol from cloves

A: A question based on analytical separation that is to be accomplished.

Q: Identify the data set with the highest (a) precision and (b) accuracy. Data set Certified true Mean…

A: Accuracy refers to closeness of mean value of data set to the actual value. Precision refers to…

Q: 22.50 mL of the Fe²+ solution required 12.50 mL of 0.255 M K₂Cr₂O, to reach the end point. Calculate…

Q: A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas…

Q: 6) For N₂ and N₂*, a) b) c) d) Construct a MO diagram. State the magnetic property Calculate the…

A: Given,

Q: The complex [Ti(H₂O)6]³+ appears to be red in aqueous solution. Which statement is true regarding…

Q: If a 3m^3 of gas initially at STP is placed under a pressure of 2 atm the temperature of the gas…

Q: a) Calculate the concentration of a 31.9 mL Ba(OH)2 solution given that it required 30.2 mL of 0.224…

A: Given-> Volume of Ba(OH)2 = 31.9 ml Volume of acetic acid = 30.2 ml Molarity of acetic acid =…

Q: Predict the sign of ΔSsys (positive or negative) if a gas is converted to solid and decrease in…

A: when a gas is converted to solid and there is decrease in number of particles,

Q: A spherical-shaped balloon 18 meters in diameter is filled with helium to a pressure of 108 kPa, 28…

A: Given that - Diameter of balloon filled with helium gas = 18 meters Pressure = 108 kPa = 108/101…

Q: What is the mass concentration (in g L–1 to two decimal places) of copper(II) hydroxide in a…

Q: CHOICES: A. If both statements are true B. If the 1st statement is false and the 2nd is true C.…

A: In exothermic reactions compounds created from their elements have negative Hf. Negative enthalpies…

Q: Predict the products of the following reactions: [PtCl4]2- + NO2- → (a) (a) + NH3 → (b)…

Q: Substance S (J/mol-K) H2(g) 130.6 O2(g) 205.0 H2O(g) 188.7

Q: iv) NGÔM, HO Heat

A: Note : Retro aldol followed by intramolecular aldol condensation. (For mechanism, see below).

Q: 2. The Second Law of Thermodynamics The entropy of a material is represented by the equation Sgas =…

Q: 3) For C₂ molecule: a) b) Construct a MO diagram. State the HOMO and LUMO. Calculate the bond order.

A: Since you have posted questions with multiple sub-parts as per guidelines we will solve only the…

Q: um with the coffee ter at 62.7 °C. J qunknown fic heat capacity of aterial? ?] J/g °C

A: Mass = 58.0 g Initial Temperature = 111.0 °c Final Temperature = 62.7 °c Q = -7550 J

Q: 3. In the reaction Fe₂O3 + CO 2Fe + 3CO2, fifteen grams of Fe₂O3 was allowed to react with CO. How…

Q: Be sure to answer all parts. Complete the reactions to show the synthesis of the following compound…

A: Detail mechanistic pathway is given below to carry out the following conversion

Q: What is the physical significance of the pressure drop? Why is it needed to be determined

A: The higher the pressure drop in the line, the greater the amount of energy consumed to maintain the…

Q: Calculate Kp for the following reaction: * PC13(g) + Cl₂(g) → PC1,(g) K₂ = 1.67 (at 500. K) O 3.07 x…

Q: iven AH = +90.7 kJ/mol and AS = +221.0 J/mol K, determine AG for the reaction CH,OH(g) → CO(g) + 2…

A: Here we are required to find the Gibbs free energy for the given reaction at 250C

Q: A piece of heated metal is added to a styrofoam cup filled with water. What is the heat change…

Q: Consider the corrosion of copper at 30°C using the overall reaction: Cu(s) + 0.5 O2(g) + 2 H3O+(aq)…

Q: 5) Sketch the MO and calculate the bond order for molecule: a) H₂+ 0₂² b)

Q: For given pair of compounds, identify which compound is the stronger base, and explain your choice:…

A: Electron pair donar is called Lewis base.. Electron pair acceptor is called Lewis acid...

Q: (s) CsXeF,(s) - 79. Iron Production Iron is obtained commercially by the reaction of hematite (Fe,O)…

A: Mass = Mole number × Molar mass

Q: 1) What are the two ways of preparing buffer solutions?

A: Buffer solution: A buffer solution is an aqueous solution consisting of a mixture of a weak acid…

Q: What is the major product of the following reaction? В12, но OH Br OA В с A Br В 'Br с Br B -Br D E…

A: Organic chemistry is branch of chemistry in which organic reactant react to form organic products.

Q: calculate the standard free energy change KJ for the reaction: Cr³+ (aq) + Fe2+ (aq) Cr2+ (aq) +…

Q: What is the fluoride ion selective electrode made of?

A: fluoride ion selective electrode contains a silver/silver chloride(Ag/AgCl)reference

Q: If a chemical reaction has a negative AH and a positive AS, then a. it will be spontaneous at low…

Q: Evaluate the following commutators d @[4] (a) x, dx d (b) x, [x [*] dy d (c) dx - x₂ d dx + x

Q: 5.) Calculate the energy of separation of Ir (2) and √ (3), (1, 2) and (2, 2), I (1,1,2) and I…

Q: . Whenever something happens, enthalpy offers a quantitative estimate of how much energy is pread…

A: Thermodynamics is the relationship between heat, work, energy and temperatur. In thermodynamics,…

Q: 30 mL of 0.25 mol L' HNO3(aq) is placed in a flask and titrated with 0.25 mol L NaOH(aq) solution.…

A: Given, HNO3 solution Concentration of HNO3 solution = 0.25 mol L-1 Volume of HNO3 solution = 30 mL =…

Q: Choose correct letter of the answer. 1. Column/s used for normal phase chromatography- a.ODS b.…

A: 1.(c) silica,alumina In normal-phase chromatography, the sample components are retained on the…

Question

Practice Problem 2.2
ANALYTICAL CHEMISTRY
1. A chemist working in a hospital clinical laboratory obtained the following values for
uric acid in blood serum: 4.63, 4.58, 4.72, 4.21, 4.67 and 4.65 %. (a) Use the 95%
confidence level to test any dubious values. What value should be reported as the b)
mean? c) sd? d) CV?
2. Quantitative analysis student Analytical analyzed an ore sample for its lead content
and obtained a mean of 4.75% Pb for five measurements. If the certified true value is
4.50%, what is the (a) percent error? (b) percent accuracy?
3. Identify the data set with the highest (a) precision and (b) accuracy.
Data set
Mean
Percent Error
Certified true
value
Standard
deviation
1
0.500
0.444
0.041
1.00
1.33
0.253
50.00
45.20
0.041
100.0
99.1
3.22
COLLEGE OF SCIENCE
NM4
2
3
Click to add notes
P

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 3 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

Answer only in 3 sig figs.
practice problem 1b)
Please write the answer clearly with the state of matter following the compound.
Please give a clear handwritten answer..and please give all sub parts answer...
alculate E° and K 2F2(g) + H2O = F2O(g) + 2H+ + 2F- Question options: E° = 0.722 V K = 7 x 1048 E° = 0.943 V K = 4 x 1026 E° = 0.522 V K = 5 x 1034 E° = 0.514 V K = 3 x 1062
Answer 3 and 5 with explanation
Answer tjis
Give a clear handwritten answer with explanation....give handwritten answer with explanation...give answer both sub parts
Answer to a Is 69.46 kJ/mol Answer to b is -166.3 kj/mol
Give a clear handwritten answer with explanation of sub parts
Give a clear handwritten answer with explanation..please give answer sub parts...
answer is 0.72. how is it arrived at? please show detailed steps and calculation.