
Concept explainers
(a)
Interpretation: The rainstorm which dropped the most rain needs to be determined on the basis of given data:
Strom number | Height | Volume (cm3) |
1 | 1 cm | 2.5 |
2 | 2.5 cm | 6.3 |
3 | 0.5 cm | 1.1 |
4 | 8 cm | 20.0 |
5 | 5 cm | 12.5 |
Concept Introduction: The dimensional analysis is the method to convert one unit to another with the help of convertor factor.
The conversion factor represents the relation between two units and is used to convert one to another. Both Inch and centimeter are units of length and can be converted into each other whereas cm3 is the unit of volume.
(a)

Answer to Problem 7E
Storm 4 dropped most of rain because the volume is maximum in storm 4. Thus, volume and height are used to determine the storm with most rain.
Explanation of Solution
Given:
Strom number | Height | Volume (cm3) |
1 | 1 cm | 2.5 |
2 | 2.5 cm | 6.3 |
3 | 0.5 cm | 1.1 |
4 | 8 cm | 20.0 |
5 | 5 cm | 12.5 |
According to given data the storm number 4 dropped most of rain. This is because volume is highest in storm 4 that is 20.0 cm3.
(b)
Interpretation: The pattern in the rainstorm needs to be determined with below data.
Strom number | Height | Volume (cm3) |
1 | 1 cm | 2.5 |
2 | 2.5 cm | 6.3 |
3 | 0.5 cm | 1.1 |
4 | 8 cm | 20.0 |
5 | 5 cm | 12.5 |
Concept Introduction: The dimensional analysis is the method to convert one unit to another with the help of convertor factor.
The conversion factor represents the relation between two units and is used to convert one to another. Both Inch and centimeter are units of length and can be converted into each other whereas cm3 is the unit of volume.
(b)

Answer to Problem 7E
The volume of rain increases from storm 1 to storm 5 therefore it is an increasing pattern.
Explanation of Solution
Given:
Strom number | Height | Volume (cm3) |
1 | 1 cm | 2.5 |
2 | 2.5 cm | 6.3 |
3 | 0.5 cm | 1.1 |
4 | 8 cm | 20.0 |
5 | 5 cm | 12.5 |
According to given data the volume of rain and height increase from storm 1 to 5. Therefore it exhibits the increasing pattern.
(c)
Interpretation: The graph between height and volume that show the proportionality of height with volume needs to be drawn.
Strom number | Height | Volume (cm3) |
1 | 1 cm | 2.5 |
2 | 2.5 cm | 6.3 |
3 | 0.5 cm | 1.1 |
4 | 8 cm | 20.0 |
5 | 5 cm | 12.5 |
Concept Introduction: The dimensional analysis is the method to convert one unit to another with the help of convertor factor.
The conversion factor represents the relation between two units and is used to convert one to another. Both Inch and centimeter are units of length and can be converted into each other whereas cm3 is the unit of volume.
(c)

Answer to Problem 7E
Explanation of Solution
Given:
Strom number | Height | Volume (cm3) |
1 | 1 cm | 2.5 |
2 | 2.5 cm | 6.3 |
3 | 0.5 cm | 1.1 |
4 | 8 cm | 20.0 |
5 | 5 cm | 12.5 |
According to given data the graph between height and volume is as given below;
The straight line in curve reflects that with increase in height, the volume of rain increase. Thus height is directly proportional to volume of rain.
(d)
Interpretation: The reason for all the data points to not lie exactly on a straight line needs to be explained.
Storm number | Height | Volume (cm3) |
1 | 0.5 cm | 1.1 |
2 | 1 cm | 2.5 |
3 | 2.5 cm | 6.3 |
4 | 5 cm | 12.5 |
5 | 8 cm | 20.0 |
Concept Introduction: The dimensional analysis is the method to convert one unit to another with the help of convertor factor.
The conversion factor represents the relation between two units and is used to convert one to another. Both Inch and centimeter are units of length and can be converted into each other whereas cm3 is the unit of volume.
(d)

Answer to Problem 7E
In the given graph, all the data points do not all lie exactly on a straight line because with the height is not increasing in exact proportion of volume of rain fall.
Explanation of Solution
According to given data the graph between height and volume is as given below;
Strom number | Height | Volume (cm3) |
1 | 0.5 cm | 1.1 |
2 | 1 cm | 2.5 |
3 | 2.5 cm | 6.3 |
4 | 5 cm | 12.5 |
5 | 8 cm | 20.0 |
In the given graph, all the data points do not all lie exactly on a straight line because with the height is not increasing in exact proportion of volume of rain fall.
(e)
Interpretation: The volume of rainfall at 6.0 cm height needs to be determined.
Storm number | Height | Volume (cm3) |
1 | 0.5 cm | 1.1 |
2 | 1 cm | 2.5 |
3 | 2.5 cm | 6.3 |
4 | 5 cm | 12.5 |
5 | 8 cm | 20.0 |
Concept Introduction: The dimensional analysis is the method to convert one unit to another with the help of convertor factor.
The conversion factor represents the relation between two units and is used to convert one to another. Both Inch and centimeter are units of length and can be converted into each other whereas cm3 is the unit of volume.
(e)

Answer to Problem 7E
At 6.0 height = 15.0 cm3 volume
Explanation of Solution
According to given data the graph between height and volume is as given below;
In the platted graph, at height 6.0 cm, the volume of rain fall is 15.0 cm3.
Chapter U3 Solutions
Living By Chemistry: First Edition Textbook
Additional Science Textbook Solutions
Organic Chemistry (8th Edition)
Microbiology: An Introduction
Campbell Biology: Concepts & Connections (9th Edition)
Microbiology: An Introduction
Campbell Essential Biology with Physiology (5th Edition)
Human Anatomy & Physiology (2nd Edition)
- Help me understand this by showing step by step solution.arrow_forwardscratch paper, and the integrated rate table provided in class. our scratch work for this test. Content attribution 3/40 FEEDBACK QUESTION 3 - 4 POINTS Complete the equation that relates the rate of consumption of H+ and the rate of formation of Br2 for the given reaction. 5Br (aq) + BrO3 (aq) + 6H (aq) →3Br2(aq) + 3H2O(l) • Your answers should be whole numbers or fractions without any decimal places. Provide your answer below: Search 尚 5 fn 40 * 00 99+ 2 9 144 a [arrow_forward(a) Write down the structure of EDTA molecule and show the complex structure with Pb2+ . (b) When do you need to perform back titration? (c) Ni2+ can be analyzed by a back titration using standard Zn2+ at pH 5.5 with xylenol orange indicator. A solution containing 25.00 mL of Ni2+ in dilute HCl is treated with 25.00 mL of 0.05283 M Na2EDTA. The solution is neutralized with NaOH, and the pH is adjusted to 5.5 with acetate buffer. The solution turns yellow when a few drops of indicator are added. Titration with 0.02299 M Zn2+ requires 17.61 mL to reach the red end point. What is the molarity of Ni2+ in the unknown?arrow_forward
- A compound has the molecular formula CH40, and shows a strong IR absorption at 2850-3150 cm. The following signals appear in the 'H NMR spectrum: 1.4 ppm (triplet, 6H), 4.0 ppm (quartet, 4H), 6.8 ppm (broad singlet, 4H). Which of the following structures is consistent with these data? Select the single best answer. OCH CH₂ x OCH2CH3 CH₂OCH3 OH CH₂OCH OH CH, OCH₁ CH₂OCH, CH₂OCH HO OH ° CH₂OCH3arrow_forwardpredict the major product while showing me the intermidiate products from each reagent/reagent grouparrow_forwardWhy is it desirable in the method of standard addition to add a small volume of concentrated standard rather than a large volume of dilute standard? An unknown sample of Cu2+ gave an absorbance of 0.262 in an atomic absorption analysis. Then 1.00 mL of solution containing 100.0 ppm (= µg/mL) Cu2+ was mixed with 95.0 mL of unknown, and the mixture was diluted to 100.0 mL in a volumetric flask. The absorbance of the new solution was 0.500. Calculate the concentration of copper ion in the sample.arrow_forward
- What is the relation between the standard deviation and the precision of a procedure? What is the relation between standard deviation and accuracy? The percentage of an additive in gasoline was measured six times with the following results: 0.13, 0.12, 0.16, 0.17, 0.20, 0.11%. Find the 90% and 99% confidence intervals for the percentage of the additive.arrow_forwardIf you measure a quantity four times and the standard deviation is 1.0% of the average, can you be 90% confident that the true value is within 1.2% of the measured average?arrow_forwardWrite down three most common errors in thermogravimetric analysis. Identify them as systematic or random errors and discuss how you can minimize the errors for better results.arrow_forward
- a) A favorable entropy change occurs when ΔS is positive. Does the order of the system increase or decrease when ΔS is positive? (b) A favorable enthalpy change occurs when ΔH is negative. Does the system absorb heat or give off heat when ΔH is negative? (c) Write the relation between ΔG, ΔH, and ΔS. Use the results of parts (a) and (b) to state whether ΔG must be positive or negative for a spontaneous change. For the reaction, ΔG is 59.0 kJ/mol at 298.15 K. Find the value of K for the reaction.arrow_forwardA sample of hydrated magnesium sulfate (MgSO4⋅xH2O) is analyzed using thermogravimetric analysis (TGA). The sample weighs 2.50 g initially and is heated in a controlled atmosphere. As the temperature increases, the water of hydration is released in two stages: (a) The first mass loss of 0.72 g occurs at 150°C, corresponding to the loss of a certain number of water molecules. (b) The second mass loss of 0.90 g occurs at 250°C, corresponding to the loss of the remaining water molecules. The residue is identified as anhydrous magnesium sulfate (MgSO4) Questions: (i) Determine the value of x (the total number of water molecules in MgSO4⋅xH2O) (ii) Calculate the percentage of water in the original sample. Write down the applications of TGA.arrow_forwardThe solubility product of iron(III) hydroxide (Fe(OH)3) is 6.3×10−38. If 50 mL of a 0.001 M FeCl3 solution is mixed with 50 mL of a 0.005 M NaOH solution, will Fe(OH)3 precipitate? Show all step-by-step calculations. To evaluate the equilibrium constant, we must express concentrations of solutes in mol/L, gases in bars, and omit solids, liquids, and solvents. Explain why.arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY





