
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 1, Problem 70E
One metal object is a cube with edges of 3.00 cm and a mass of 140.4 g. A second metal object is a sphere with a radius of 1.42 cm and a mass of 61.6 g. Are these objects made of the same or different metals? Assume the calculated densities are accurate to ±1.00%.
Expert Solution & Answer

Trending nowThis is a popular solution!

Students have asked these similar questions
eks.com/aleksogi/x/sl.exe/1o_u-IgNslkr7j8P3jH-IQs_pBanHhvTCeeBZbufuBYTI0Hz7m7D3ZS17Hd6m-HIl6n52njJN-TXdQA2X9yID-1SWQJTgnjARg30
111
States of Matter
Understanding conceptual components of the enthalpy of solution
0/5
Ge
A small amount of acetonitrile (CH, CN) is dissolved in a large amount of water. Imagine separating this process into the four stages sketched below. (These
sketches show only a portion of the substances, so you can see the density and distribution of atoms and molecules in them.)
CH,CN
H₂O
B
88
C
Use these sketches to answer the questions in the table below.
The enthalpy of solution AH is negative
soln
when CH3CN dissolves in water. Use this
information to list the stages in order of increasing
enthalpy.
Would heat be absorbed or released if the system
moved from Stage C to D?
What force would oppose or favor the system
moving from Stage C to D? Check all that apply.
1
absorbed
O released
neither absorbed nor released.
none
O ionic bonding force
covalent bonding force…
In a system with an anodic overpotential, the variation of ŋ as a function of
the current density:
1. at low fields is linear 2. at higher fields, it follows Tafel's law
Find the range of current densities for which the overpotential has the same
value as when calculated for cases 1 and 2 (maximum relative difference of
5% with respect to the behavior for higher fields). To which overpotential
range does this correspond?
Data: 10 = 1.5 mA cm², T = 300°C, ẞ = 0.64, R = 8.314 J K 1 mol¹ and F = 96485
C mol-1.
Indicate 10.6 with only one significant figure.
Chapter 1 Solutions
Chemistry
Ch. 1 - Define and explain the differences between the...Ch. 1 - Is the scientific method suitable for solving...Ch. 1 - Which of the following statements could be tested...Ch. 1 - For each of the following pieces of glassware,...Ch. 1 - A student performed an analysis of a sample for...Ch. 1 - Compare and contrast the multiplication/division...Ch. 1 - Explain how density can be used as a conversion...Ch. 1 - On which temperature scale (F, C. or K) docs 1...Ch. 1 - Distinguish between physical changes and chemical...Ch. 1 - Why is the separation of mixtures into pure or...
Ch. 1 - a. There are 365 days per year, 24 hours per day,...Ch. 1 - Prob. 2ALQCh. 1 - When a marble is dropped into a beaker of water,...Ch. 1 - Prob. 4ALQCh. 1 - You may have noticed that when water boils, you...Ch. 1 - If you place a glass rod over a burning candle,...Ch. 1 - Which characteristics of a solid, a liquid, and a...Ch. 1 - Sketch a magnified view (showing atoms/molecules)...Ch. 1 - Paracelsus, a sixteenth-century alchemist and...Ch. 1 - What is wrong with the following statement? "The...Ch. 1 - Why is it incorrect to say that the results of a...Ch. 1 - You have a 1.0-cm3 sample of lead and a 1.0-cm3...Ch. 1 - Consider the addition of 15.4 to 28. What would a...Ch. 1 - Consider multiplying 26.2 by 16.43. What would a...Ch. 1 - True or false? For mathematical operation...Ch. 1 - Is there a difference between a homogeneous...Ch. 1 - The difference between a law and a theory is the...Ch. 1 - The scientific method is a dynamic process. What...Ch. 1 - Explain the fundamental steps of the scientific...Ch. 1 - Prob. 22QCh. 1 - A measurement is a quantitative observation...Ch. 1 - To determine the volume of a cube, a student...Ch. 1 - What are significant figures? Show how to indicate...Ch. 1 - A cold front moves through and the temperature...Ch. 1 - In a multiple-step calculation, is it better to...Ch. 1 - Is the density of a gaseous substance larger or...Ch. 1 - Give four examples illustrating each of the...Ch. 1 - Which of the following are exact numbers? a. There...Ch. 1 - Indicate the number of significant figures in each...Ch. 1 - How many significant figures are there in each of...Ch. 1 - How many significant figures are in each of the...Ch. 1 - Round off each of the following numbers to the...Ch. 1 - Use exponential notation to express the number...Ch. 1 - You have liquid in each graduated cylinder shown:...Ch. 1 - The beakers shown below have different precisions....Ch. 1 - Evaluate each of the following, and write the...Ch. 1 - Perform the following mathematical operations, and...Ch. 1 - Perform the following mathematical operations, and...Ch. 1 - Perform the following mathematical operations, and...Ch. 1 - Perform each of the following conversions. a. 8.43...Ch. 1 - a. How many kilograms are in 1 teragram? b. How...Ch. 1 - Perform the following unit conversions. a....Ch. 1 - Perform the following unit conversions. a. 908 oz...Ch. 1 - Use the following exact conversion factors to...Ch. 1 - Although the preferred SI unit of area is the...Ch. 1 - Precious metals and gems are measured in troy...Ch. 1 - Apothecaries (druggists) use the following set of...Ch. 1 - For a pharmacist dispensing pills or capsules, it...Ch. 1 - A children's pain relief elixir contains 80. mg...Ch. 1 - Science fiction often uses nautical analogies to...Ch. 1 - The world record for the hundred meter dash is...Ch. 1 - You are driving 65 mi/h and take your eyes off the...Ch. 1 - You pass a road sign saying New York 112 km. If...Ch. 1 - The dosage for an antibiotic is prescribed at 8.0...Ch. 1 - In recent years, there has been a large push for...Ch. 1 - Prob. 59ECh. 1 - Carbon monoxide (CO) detectors sound an alarm when...Ch. 1 - Convert the following Fahrenheit temperatures to...Ch. 1 - A thermometer gives a reading of 96.1F 0.2F. What...Ch. 1 - Convert the following Celsius temperatures to...Ch. 1 - Convert the following Kelvin temperatures to...Ch. 1 - At what temperature is the temperature in degrees...Ch. 1 - The average daytime temperatures on the earth and...Ch. 1 - Use the figure below to answer the following...Ch. 1 - Ethylene glycol is the main component in...Ch. 1 - A material will float on the surface of a liquid...Ch. 1 - One metal object is a cube with edges of 3.00 cm...Ch. 1 - A star is estimated to have a mass of 2 1036 kg....Ch. 1 - A rectangular block has dimensions 2.9 cm 3.5 cm ...Ch. 1 - Diamonds are measured in carats, and 1 carat =...Ch. 1 - At room temperature the element bromine, Br2, is a...Ch. 1 - A sample containing 33.42 g of metal pellets is...Ch. 1 - The density of pure silver is 10.5 g/cm3 at 20C....Ch. 1 - In e-ach of the following pairs, which has the...Ch. 1 - a. Calculate the mass of ethanol in 1.50 qt of...Ch. 1 - In each of the following pairs, which has the...Ch. 1 - Using Table 1.5, calculate the volume of 25.0 g of...Ch. 1 - The density of osmium (the densest metal) is 22.57...Ch. 1 - A copper wire (density = 8.96 g/cm3) has a...Ch. 1 - Match each description below with the following...Ch. 1 - Define the following terms: solid, liquid, gas,...Ch. 1 - What is the difference between homogeneous and...Ch. 1 - Classify the following mixtures as homogeneous or...Ch. 1 - Classify each of the following as a mixture or a...Ch. 1 - Suppose a teaspoon of magnesium filings and a...Ch. 1 - If a piece of hard, white blackboard chalk is...Ch. 1 - During a very cold winter, the temperature may...Ch. 1 - Classify the following as physical or chemical...Ch. 1 - The properties of a mixture are typically averages...Ch. 1 - Two spherical objects have the same mass. One...Ch. 1 - A 194-g sample of caffeine (C8H10N4O2) contains...Ch. 1 - Lipitor, a pharmaceutical drug that has been shown...Ch. 1 - In Shakespeares Richard III, the First Murderer...Ch. 1 - Prob. 97AECh. 1 - In the opening scenes of the movie Raiders of the...Ch. 1 - Prob. 99AECh. 1 - The active ingredient of aspirin tablets is...Ch. 1 - This year, like many past years, you begin to feel...Ch. 1 - Which of the following are chemical changes? Which...Ch. 1 - A person with high cholesterol has 250 mg of...Ch. 1 - Prob. 104AECh. 1 - A column of liquid is found to expand linearly on...Ch. 1 - A 25.00-g sample of a solid is placed in a...Ch. 1 - For each of the following, decide which block is...Ch. 1 - According to the Official Rules of Baseball, a...Ch. 1 - The density of an irregularly shaped object was...Ch. 1 - The chemist in Example 1.14 did some further...Ch. 1 - The longest river in the world is the Nile River...Ch. 1 - Secretariat is known as the horse with the fastest...Ch. 1 - The hottest temperature recorded in the United...Ch. 1 - Prob. 114CWPCh. 1 - Which of the following statements is(are) true? a....Ch. 1 - Which of the following describes a chemical...Ch. 1 - A rule of thumb in designing experiments is to...Ch. 1 - Draw a picture showing the markings (graduations)...Ch. 1 - Many times errors are expressed in terms of...Ch. 1 - A person weighed 15 pennies on a balance and...Ch. 1 - On October 21, 1982, the Bureau of the Mint...Ch. 1 - As part of a science project, you study traffic...Ch. 1 - Sterling silver is a solid solution of silver and...Ch. 1 - Make molecular-level (microscopic) drawings for...Ch. 1 - Confronted with the box shown in the diagram, you...
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
- If I have 10 data points for variables x and y, when I represent y versus x I obtain a line with the equation y = mx + b. Is the slope m equal to dy/dx?arrow_forwardThe data for the potential difference of a battery and its temperature are given in the table. Calculate the entropy change in J mol-1 K-1 (indicate the formulas used).Data: F = 96485 C mol-1arrow_forwardIn a cell, the change in entropy (AS) can be calculated from the slope of the E° vs 1/T graph. The slope is equal to -AS/R, where R is the gas constant. Is this correct?arrow_forward
- Using the Arrhenius equation, it is possible to establish the relationship between the rate constant (k) of a chemical reaction and the temperature (T), in Kelvin (K), the universal gas constant (R), the pre-exponential factor (A) and the activation energy (Ea). This equation is widely applied in studies of chemical kinetics, and is also widely used to determine the activation energy of reactions. In this context, the following graph shows the variation of the rate constant with the inverse of the absolute temperature, for a given chemical reaction that obeys the Arrhenius equation. Based on the analysis of this graph and the concepts acquired about the kinetics of chemical reactions, analyze the following statements: I. The activation energy (Ea) varies with the temperature of the system. II. The activation energy (Ea) varies with the concentration of the reactants. III. The rate constant (K) varies proportionally with temperature. IV. The value of the…arrow_forwardIn an electrolytic cell, indicate the formula that relates E0 to the temperature T.arrow_forward-- 14:33 A Candidate Identification docs.google.com 11. Compound A can transform into compound B through an organic reaction. From the structures below, mark the correct one: HO A تھے۔ די HO B ○ A) Compounds A and B are isomers. B) Both have the same number of chiral carbons. C) Compound A underwent an addition reaction of Cl2 and H2O to form compound B. D) Compound A underwent a substitution reaction forming the intermediate chlorohydrin to obtain compound B. E) Compound A underwent an addition reaction of Cl2 forming the chloronium ion and then added methanol to obtain compound B. 60arrow_forward
- -- 14:40 A Candidate Identification docs.google.com 13. The compound 1-bromo-hex-2-ene reacts with methanol to form two products. About this reaction, mark the correct statement: OCH3 CH3OH Br OCH3 + + HBr A B A) The two products formed will have the same percentage of formation. B) Product B will be formed by SN1 substitution reaction with the formation of an allylic carbocation. C) Product A will be formed by SN1 substitution reaction with the formation of a more stable carbocation than product B. D) Product A will be formed by an SN2 substitution reaction occurring in two stages, the first with slow kinetics and the second with fast kinetics. E) The two compounds were obtained by addition reaction, with compound B having the highest percentage of formation. 57arrow_forward-- ☑ 14:30 A Candidate Identification docs.google.com 10. Amoxicillin (figure X) is one of the most widely used antibiotics in the penicillin family. The discovery and synthesis of these antibiotics in the 20th century made the treatment of infections that were previously fatal routine. About amoxicillin, mark the correct one: HO NH2 H S -N. HO Figura X. Amoxicilina A) It has the organic functions amide, ester, phenol and amine. B) It has four chiral carbons and 8 stereoisomers. C) The substitution of the aromatic ring is of the ortho-meta type. D) If amoxicillin reacts with an alcohol it can form an ester. E) The structure has two tertiary amides. 62arrow_forwardThe environmental police of a Brazilian state received a report of contamination of a river by inorganic arsenic, due to the excessive use of pesticides on a plantation on the riverbanks. Arsenic (As) is extremely toxic in its many forms and oxidation states. In nature, especially in groundwater, it is found in the form of arsenate (AsO ₄ ³ ⁻ ), which can be electrochemically reduced to As ⁰ and collected at the cathode of a coulometric cell. In this case, Potentiostatic Coulometry (at 25°C) was performed in an alkaline medium (pH = 7.5 throughout the analysis) to quantify the species. What potential (E) should have been selected/applied to perform the analysis, considering that this is an exhaustive electrolysis technique (until 99.99% of all AsO ₄ ³ ⁻ has been reduced to As ⁰ at the electrode, or n( final) = 0.01% n( initial )) and that the concentration of AsO ₄ ³ ⁻ found in the initial sample was 0.15 mmol/L ? Data: AsO ₄ 3 ⁻ (aq) + 2 H ₂ O ( l ) + 2 e ⁻ → A s O ₂ ⁻ ( a…arrow_forward
- -- 14:17 15. Water-soluble proteins are denatured when there is a change in the pH of the environment in which they are found. This occurs due to the protonation and deprotonation of functional groups present in their structure. Choose the option that indicates the chemical bonds modified by pH in the protein represented in the following figure. E CH2 C-OH CH2 H₂C H₁C CH CH3 CH3 CH CH₂-S-S-CH₂- 910 H B -CH2-CH2-CH2-CH₂-NH3* −0—C—CH₂- ○ A) A, C e D. • В) Вес ○ C) DeE ○ D) B, De E ○ E) A, B e C 68arrow_forwardSuppose sodium sulfate has been gradually added to 100 mL of a solution containing calcium ions and strontium ions, both at 0.15 mol/L. Indicate the alternative that presents the percentage of strontium ions that will have precipitated when the calcium sulfate begins to precipitate. Data: Kps of calcium sulfate: 2.4x10 ⁻ ⁵; Kps of strontium sulfate: 3.2x10 ⁻ ⁷ A) 20,2 % B) 36,6 % C) 62,9 % D) 87,5 % E) 98.7%arrow_forward14:43 A Candidate Identification docs.google.com 14. The following diagrams represent hypothetical membrane structures with their components numbered from 1 to 6. Based on the figures and your knowledge of biological membranes, select the correct alternative. | 3 5 || 人 2 500000 6 A) Structures 1, 3, 5, 2 and 4 are present in a constantly fluid arrangement that allows the selectivity of the movement ○ of molecules. Structure 4, present integrally or peripherally, is responsible for this selection, while the quantity of 6 regulates the fluidity. B) The membranes isolate the cell from the environment, but allow the passage of water-soluble molecules thanks to the presence of 2 and 3. The membrane in scheme is more fluid than that in 55arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningGeneral 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
- Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningLiving By Chemistry: First Edition TextbookChemistryISBN:9781559539418Author:Angelica StacyPublisher:MAC HIGHER

Chemistry: Principles and Practice
Chemistry
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Cengage Learning

Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
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

Chemistry & Chemical Reactivity
Chemistry
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning

Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning

Living By Chemistry: First Edition Textbook
Chemistry
ISBN:9781559539418
Author:Angelica Stacy
Publisher:MAC HIGHER
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