CHEMISTRY+CHEM...HYBRID ED.(LL)>CUSTOM<
9th Edition
ISBN: 9781305020788
Author: John C.Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: CENGAGE C
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter L.2, Problem 2RC
Two students were assigned to determine the mass of a sample of an unknown liquid. Student A used an ordinary laboratory balance that could determine mass to ±0.01 g. Student B used an analytical balance that could measure mass to ±0.1 mg. Each made four measurements, giving the following results:
Student A: 8.19 g, 8.22 g, 8.21 g, 8.25 g
Student B: 8.2210 g, 8.2210 g, 8.2209 g, 8.2210 g
2. Which student is more precise?
- (a) A
- (b) B
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
When natural light falls perpendicularly on a material A, it has a reflectivity of 0.813%. Indicate the value of the refractive index.
In piezoelectricity and piezoelectric ceramics, one of the following options is false:(A). Piezoelectricity allows an electrical signal to be transformed into a mechanical one.(B). PbZrO3 is a well-known piezoelectric ceramic.(C). Piezoelectricity and ferroelectricity in general have no relationship.(D). One of the applications of piezoelectricity is sonar.
(30 MARKS) Give the major product(s
) formed including relevant
stereochemistry or the complete
reaction conditions for the following
reactions. More than one step may be
required for each reaction arrow, in
which case the steps must be
numbered 1), 2) etc. (2 marks each
box) h)
i)
h)
OH
i)
HO
H3PO4, heat
2
Br
Chapter L Solutions
CHEMISTRY+CHEM...HYBRID ED.(LL)>CUSTOM<
Ch. L.1 - The distance between two carbon atoms in diamond...Ch. L.1 - Prob. 1RCCh. L.1 - Prob. 2RCCh. L.1 - Prob. 3RCCh. L.1 - Prob. 4RCCh. L.1 - 5. A circulated U.S. quarter has a mass of 5.59 g....Ch. L.1 - Prob. 6RCCh. L.1 - Prob. 7RCCh. L.2 - Two students measured the freezing point of a...Ch. L.2 - Prob. 1RC
Ch. L.2 - Two students were assigned to determine the mass...Ch. L.3 - Prob. 1CYUCh. L.3 - Prob. 1RCCh. L.3 - Prob. 2RCCh. L.3 - 3. What is the sum of 10.26 g and 0.063 g?
10.323...Ch. L.3 - Prob. 4RCCh. L.4 - The density of gold is 19,320 kg/m3. What is this...Ch. L.4 - 1. A lake has an area of 2.33 × 107 m2. What is...Ch. L.5 - What is the fuel density in units of kg/L?Ch. L.5 - What mass and what volume of fuel should have been...Ch. L.6 - A particular paint has a density of 0.914 g/cm3....Ch. L.6 - Prob. 1RCCh. L - Many laboratories use 25C as a standard...Ch. L - The temperature on the surface of the Sun is 5.5 ...Ch. L - Prob. 3PSCh. L - Make the following temperature conversions:Ch. L - A marathon distance race covers distance of 42.195...Ch. L - The average lead pencil, new and unused, is 19 cm...Ch. L - A standard U.S. postage stamp is 2.5 cm long and...Ch. L - A compact disc has a diameter of 11.8 cm. What is...Ch. L - A typical laboratory beaker has a volume of 250....Ch. L - Some soft drinks are sold in bottles with a volume...Ch. L - A book has a mass of 2.52 kg. What is this mass in...Ch. L - A new U.S. dime has a mass of 2.265 g. What is its...Ch. L - Ethylene glycol, C2H6O2, is an ingredient of...Ch. L - A piece of silver metal has a mass of 2.365 g. If...Ch. L - Prob. 15PSCh. L - Which occupies a larger volume, 600 g of water...Ch. L - You are on a diet that calls for eating no more...Ch. L - A 2-in. piece of chocolate cake with frosting...Ch. L - Prob. 19PSCh. L - Prob. 20PSCh. L - You and your lab partner are asked to determine...Ch. L - The accepted value of the melting point of...Ch. L - Prob. 23PSCh. L - Prob. 24PSCh. L - Prob. 25PSCh. L - Prob. 26PSCh. L - To determine the average mass of a popcorn kernel,...Ch. L - Use the following graph to answer the following...Ch. L - Use the graph below to answer the following...Ch. L - Solve the following equation for the unknown...Ch. L - Solve the following equation for the unknown...Ch. L - Solve the following equation for the unknown...Ch. L - Prob. 34PSCh. L - Molecular distances are usually given in...Ch. L - The separation between carbon atoms in diamond is...Ch. L - A red blood cell has a diameter of 7.5 m...Ch. L - The platinum-containing cancer drug cisplatin...Ch. L - Prob. 39GQCh. L - You need a cube of aluminum with a mass of 7.6 g....Ch. L - You have a 250.0-mL graduated cylinder containing...Ch. L - Prob. 42GQCh. L - The smallest repeating unit of a crystal of common...Ch. L - Diamond has a density of 3.513 g/cm3. The mass of...Ch. L - Prob. 45GQCh. L - The density of pure water at various temperatures...Ch. L - Prob. 47GQCh. L - The aluminum in a package containing 75 ft2 of...Ch. L - Fluoridation of city water supplies has been...Ch. L - About two centuries ago, Benjamin Franklin showed...Ch. L - Prob. 51GQCh. L - A 26-meter-tall statue of Buddha in Tibet is...Ch. L - At 25 C, the density of water is 0.997 g/cm3,...Ch. L - Suppose your bedroom is 18 ft long and 15 ft wide,...Ch. L - A spherical steel ball has a mass of 3.475 g and a...Ch. L - You are asked to identify an unknown liquid that...Ch. L - You have an irregularly shaped piece of an unknown...Ch. L - There are five hydrocarbon compounds (compounds of...Ch. L - Suppose you have a cylindrical glass tube with a...Ch. L - Copper: Copper has a density of 8.96 g/cm3 An...Ch. L - Copper: (a) Suppose you have a cube of copper...Ch. L - A sample of unknown metal is placed in a graduated...Ch. L - Iron pyrite is often called fool's gold because it...Ch. L - You can analyze for a copper compound in water...Ch. L - Prob. 67IL
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
- Nonearrow_forwardIndicate which option is false(A). Resistivity has a residual component and a thermal component.(B). In some materials resistivity increases with T and in others it decreases.(C). In insulating materials, resistivity is very low.arrow_forwardIn ceramic materials, in relation to polymorphism, the same substance crystallizes differently when external conditions vary. Is this correct?arrow_forward
- Indicate the type of bond that is considered to be a hydrogen bond.(A). Permanent dipole-dipole interaction between polar molecules.(B). Mixed ionic-covalent bond.(C). Principal interatomic bond(D). Van del Waals forces.arrow_forwardRetro aldol: NaOH H₂O H NaOH & d H₂O Harrow_forwardDraw the product of the reaction shown below. Ignore inorganic byproducts. H conc. HBr Drawing Qarrow_forward
- Calculate the atomic packing factor of diamond knowing that the number of Si atoms per cm3 is 2.66·1022 and that the atomic radii of silicon and oxygen are, respectively, 0.038 and 0.117 nm.arrow_forwardA pdf file of your hand drawn, stepwise mechanisms for the reactions. For each reaction in the assignment, you must write each mechanism three times (there are 10 reactions, so 30 mechanisms). (A) do the work on a tablet and save as a pdf., it is expected to write each mechanism out and NOT copy and paste the mechanism after writing it just once. Everything should be drawn out stepwise and every bond that is formed and broken in the process of the reaction, and is expected to see all relevant lone pair electrons and curved arrows. Aldol: NaOH HO H Δ NaOH Δarrow_forwardNonearrow_forward
- Draw structures corresponding to the following names and give IUPAC names for the following compounds: (8 Point) a) b) c) CH3 CH2CH3 CH3CHCH2CH2CH CH3 C=C H3C H H2C=C=CHCH3 d) CI e) (3E,5Z)-2,6-Dimethyl-1,3,5,7-octatetraene f) (Z)-4-bromo-3-methyl-3-penten-1-yne g) cis-1-Bromo-2-ethylcyclopentane h) (5R)-4,4,5-trichloro-3,3-dimethyldecanearrow_forwardNonearrow_forwardReview: Design a total total synthesis synthesis of the following compound using methyloxacyclopropane and any other necessary reagents.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage Learning
Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning
Principles of Modern Chemistry
Chemistry
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Chemistry: Principles and Practice
Chemistry
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
General Chemistry - Standalone book (MindTap Cour...
Chemistry
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Cengage Learning
Measurement and Significant Figures; Author: Professor Dave Explains;https://www.youtube.com/watch?v=Gn97hpEkTiM;License: Standard YouTube License, CC-BY
Trigonometry: Radians & Degrees (Section 3.2); Author: Math TV with Professor V;https://www.youtube.com/watch?v=U5a9e1J_V1Y;License: Standard YouTube License, CC-BY