Introductory Chemistry: A Foundation
9th Edition
ISBN: 9781337399425
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 4.7, Problem 4.4SC
Exercise 4.4 Give the symbol for the phosphorus atom (Z = 15) that contains 17 neutrons.
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 4 Solutions
Introductory Chemistry: A Foundation
Ch. 4.4 - Exercise 4.1 Write the formula for each of the...Ch. 4.5 - The average diameter of an atom ¡s1.31010 m. What...Ch. 4.5 - You have learned about three different models of...Ch. 4.7 - Exercise 4.2 Give the number of protons, neutrons,...Ch. 4.7 - Exercise 4.3 Give the number of protons, neutrons,...Ch. 4.7 - Exercise 4.4 Give the symbol for the phosphorus...Ch. 4.8 - Exercise 4.5 Give the symbol and atomic number for...Ch. 4.11 - Thomson and Rutherford helped to show that atoms...Ch. 4.11 - Prob. 4.6SCCh. 4 - Knowing the number of protons in the atom of a...
Ch. 4 - The average mass of a carbon atom is 12.011....Ch. 4 - Prob. 3ALQCh. 4 - Prob. 4ALQCh. 4 - The vitamin niacin (nicotinic acid,C6H5NO2 ) can...Ch. 4 - One of the best indications of a useful theory is...Ch. 4 - Prob. 7ALQCh. 4 - How does Dalton’s atomic theory account for the...Ch. 4 - Prob. 9ALQCh. 4 - These questions concern the work of J. J. Thomson:...Ch. 4 - Heat is applied to an ice cube until only steam is...Ch. 4 - What makes a carbon atom different from a nitrogen...Ch. 4 - Hundreds of years ago, alchemists tried to turn...Ch. 4 - Chlorine has two prominent isotopes,37Cl and35Cl ....Ch. 4 - Prob. 15ALQCh. 4 - Prob. 16ALQCh. 4 - Rutherford was surprised when some of theparticles...Ch. 4 - It is good practice to actively read the textbook...Ch. 4 - Why is the term “sodium chloride molecule”...Ch. 4 - Both atomic elements and molecular elements exist....Ch. 4 - Now that you have gone through Chapter 4, go back...Ch. 4 - Write the formula for each of the following...Ch. 4 - Prob. 23ALQCh. 4 - What were the four fundamental substances...Ch. 4 - Prob. 2QAPCh. 4 - Prob. 3QAPCh. 4 - Prob. 4QAPCh. 4 - What are the live most abundant elements (by mass)...Ch. 4 - Read the “Chemistry in Focus” segment Trace...Ch. 4 - Prob. 7QAPCh. 4 - The symbols for most elements are based on the...Ch. 4 - Find the symbol in Column 2 for each name in...Ch. 4 - Prob. 10QAPCh. 4 - Use the periodic table shown in Fig. 4.9 to find...Ch. 4 - Prob. 12QAPCh. 4 - Prob. 13QAPCh. 4 - Prob. 14QAPCh. 4 - A given compound always contains the same...Ch. 4 - Correct each of the following misstatements from...Ch. 4 - Prob. 17QAPCh. 4 - A given compound always contains the same relative...Ch. 4 - Based on the following word descriptions, write...Ch. 4 - Based on the following word descriptions, write...Ch. 4 - Scientists J. J. Thomson and William Thomson (Lord...Ch. 4 - True or false? Rutherford’s bombardment...Ch. 4 - Where are neutrons found in an atom? Are neutrons...Ch. 4 - What are the positively charged particles found in...Ch. 4 - Do the proton and the neutron have exactly the...Ch. 4 - The proton and the (electron/neutron) have almost...Ch. 4 - An average atomic nucleus has a diameter of about...Ch. 4 - Which particles in an atom are most responsible...Ch. 4 - Prob. 29QAPCh. 4 - True or false? The mass number of a nucleus...Ch. 4 - For an isolated atom, why do we expect the number...Ch. 4 - Why do we not necessarily expect the number of...Ch. 4 - Dalton’s original atomic theory proposed that all...Ch. 4 - Prob. 34QAPCh. 4 - For each of the following elements, use the...Ch. 4 - Prob. 36QAPCh. 4 - Write the atomic symbol(ZAX) for each of the...Ch. 4 - Write the atomic symbol(ZAX) for each of the...Ch. 4 - How many protons and neutrons are contained in the...Ch. 4 - Read the Chemistry in Focus” segment “Whair”Do You...Ch. 4 - Read the “Chemistry in Focus” segmentIsotope...Ch. 4 - Complete the following table. Name Symbol Atomic...Ch. 4 - True or false? The elements are arranged in the...Ch. 4 - Prob. 44QAPCh. 4 - List the characteristic physical properties that...Ch. 4 - Where are the metallic elements found on the...Ch. 4 - Prob. 47QAPCh. 4 - List five nonmetallic elements that exist as...Ch. 4 - Under ordinary conditions, only a few pure...Ch. 4 - The elements that lie close to the “stair-step”...Ch. 4 - Prob. 51QAPCh. 4 - Without looking at your textbook or the periodic...Ch. 4 - Prob. 53QAPCh. 4 - Prob. 54QAPCh. 4 - Most substances are composed of _________ rather...Ch. 4 - Prob. 56QAPCh. 4 - Prob. 57QAPCh. 4 - Prob. 58QAPCh. 4 - Molecules of nitrogen gas and oxygen gas are said...Ch. 4 - Give three examples of gaseous elements that exist...Ch. 4 - Prob. 61QAPCh. 4 - If sodium chloride (table salt) is melted and then...Ch. 4 - Prob. 63QAPCh. 4 - The two most common elemental forms of carbon are...Ch. 4 - An isolated atom has a net charge of ________ .Ch. 4 - Prob. 66QAPCh. 4 - A simple ion with a 3+ charge (for example, A13+)...Ch. 4 - An ion that has two more electrons outside the...Ch. 4 - Prob. 69QAPCh. 4 - Prob. 70QAPCh. 4 - Prob. 71QAPCh. 4 - True or false?N3 andP3 contain a different number...Ch. 4 - How many electrons are present in each of the...Ch. 4 - Prob. 74QAPCh. 4 - For the following processes that show the...Ch. 4 - For the following ions, indicate whether electrons...Ch. 4 - For each of the following atomic numbers, use the...Ch. 4 - On the basis of the element’s location in the...Ch. 4 - List some properties of a substance that would...Ch. 4 - Prob. 80QAPCh. 4 - Prob. 81QAPCh. 4 - Prob. 82QAPCh. 4 - For each of the following positive ions, use the...Ch. 4 - For each of the following negative ions, use the...Ch. 4 - Prob. 85APCh. 4 - Prob. 86APCh. 4 - Prob. 87APCh. 4 - Prob. 88APCh. 4 - Which of the following is(are) true regardingand...Ch. 4 - Which subatomic particles contribute most to the...Ch. 4 - Is it possible for the same Iwo elements to form...Ch. 4 - Carbohydrates, a class of compounds containing the...Ch. 4 - Prob. 93APCh. 4 - How many protons and neutrons are contained in the...Ch. 4 - Though the common isotope of aluminum has a mass...Ch. 4 - Prob. 96APCh. 4 - Prob. 97APCh. 4 - Prob. 98APCh. 4 - Prob. 99APCh. 4 - Prob. 100APCh. 4 - Prob. 101APCh. 4 - A metal ion with a 2+ charge contains 34 neutrons...Ch. 4 - Prob. 103APCh. 4 - Write the simplest formula for each of the...Ch. 4 - Prob. 105APCh. 4 - Write the atomic symbol(ZAX) for each of the...Ch. 4 - How many protons and neutrons are contained in the...Ch. 4 - Prob. 108APCh. 4 - Prob. 109APCh. 4 - Prob. 110APCh. 4 - Prob. 111CPCh. 4 - Prob. 112CPCh. 4 - Complete the following table. Number of Protons...Ch. 4 - Prob. 114CPCh. 4 - Using the periodic table, complete the following...Ch. 4 - Prob. 116CPCh. 4 - Which of the following is(are) correct? a.40Ca2+...
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
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
Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher: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
Introductory Chemistry: A Foundation
Chemistry
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Cengage Learning
General, Organic, and Biological Chemistry
Chemistry
ISBN:9781285853918
Author:H. Stephen Stoker
Publisher:Cengage Learning
Mass Spectrometry; Author: Professor Dave Explains;https://www.youtube.com/watch?v=hSirWciIvSg;License: Standard YouTube License, CC-BY