(a)
Interpretation:
The molar mass of adipic acid
Concept Introduction:
Molar mass refers to the mass of one mole of the compound. It is calculate by adding the mass of each atom of each element present in one molecule of a compound.
Answer to Problem 111AP
The molar mass of adipic acid
Explanation of Solution
Molar mass of adipic acid
Here,
Atomic mass of carbon = 12.01 g/mol.- Atomic mass of hydrogen = 1.008 g/mol.
- Atomic mass of oxygen = 15.99 g/mol.
(b)
Interpretation:
The molar mass of caffeine
Concept Introduction:
Molar mass refers to the mass of one mole of the compound. It is calculate by adding the mass of each atom of each element present in one molecule of a compound.
Answer to Problem 111AP
The molar mass of caffeine
Explanation of Solution
Molar mass of caffeine
Here,
- Atomic mass of carbon = 12.01 g/mol.
- Atomic mass of hydrogen = 1.008 g/mol.
- Atomic mass of nitrogen = 14 g/mol.
- Atomic mass of oxygen = 15.99 g/mol.
(c)
Interpretation:
The molar mass of eicosane
Concept Introduction:
Molar mass refers to the mass of one mole of the compound. It is calculate by adding the mass of each atom of each element present in one molecule of a compound.
Answer to Problem 111AP
The molar mass of eicosane
Explanation of Solution
Molar mass of eicosane
Here,
- Atomic mass of carbon = 12.01 g/mol.
- Atomic mass of hydrogen = 1.008 g/mol.
(d)
Interpretation:
The molar mass of cyclohexanol
Concept Introduction:
Molar mass refers to the mass of one mole of the compound. It is calculate by adding the mass of each atom of each element present in one molecule of a compound.
Answer to Problem 111AP
The molar mass of cyclohexanol
Explanation of Solution
Molar mass of cyclohexanol
Here,
- Atomic mass of carbon = 12.01 g/mol.
- Atomic mass of hydrogen = 1.008 g/mol.
- Atomic mass of oxygen = 15.99 g/mol.
(e)
Interpretation:
The molar mass of vinyl acetate
Concept Introduction:
Molar mass refers to the mass of one mole of the compound. It is calculate by adding the mass of each atom of each element present in one molecule of a compound.
Answer to Problem 111AP
The molar mass of vinyl acetate
Explanation of Solution
Molar mass of vinyl acetate
Here,
- Atomic mass of carbon = 12.01 g/mol.
- Atomic mass of hydrogen = 1.008 g/mol.
- Atomic mass of oxygen = 15.99 g/mol.
(f)
Interpretation:
The molar mass of dextrose
Concept Introduction:
Molar mass refers to the mass of one mole of the compound. It is calculated by adding the mass of each atom of each element present in one molecule of a compound.
Answer to Problem 111AP
The molar mass of dextrose
Explanation of Solution
Molar mass of dextrose
Here,
- Atomic mass of carbon = 12.01 g/mol.
- Atomic mass of hydrogen = 1.008 g/mol.
- Atomic mass of oxygen = 15.99 g/mol.
Want to see more full solutions like this?
Chapter 8 Solutions
Introductory Chemistry: A Foundation
- Two basic laws of chemistry are the law of conservation of mass and the law of constant composition. Which of these laws (if any) do the following statements illustrate? (a) Lavoisier found that when mercury(ll) oxide, HgO, decomposes, the total mass of mercury (Hg) and oxygen formed equals the mass of mercury(ll) oxide decomposed. (b) Analysis of the calcium carbonate found in the marble mined in Carrara, Italy, and in the stalactites of the Carlsbad Caverns in New Mexico gives the same value for the percentage of calcium in calcium carbonate. (c) Hydrogen occurs as a mixture of two isotopes, one of which is twice as heavy as the other.arrow_forwardIn Groups 4A-6A, there are several elements whose symbols begin with S. Name these elements, and for each one give its symbol, atomic number, group number, and period. Describe each as a metal, metalloid, or nonmetal.arrow_forwardConsider the following data for three binary compounds of hydrogen and nitrogen: %H (by Mass) %N (by Mass) I 17.75 82.25 II 12.58 87.42 III 2.34 97.66 When 1.00 L of each gaseous compound is decomposed to its elements, the following volumes of H2(g) and N2(g) are obtained: H2(L) N2(L) I 1.50 0.50 II 2.00 1.00 III 0.50 1.50 Use these data to determine the molecular formulas of compounds I, II, and III and to determine the relative values for the atomic masses of hydrogen and nitrogen.arrow_forward
- Each of the following statements is true, but Dalton might have had trouble explaining some of them with his atomic theory. Give explanations for the following statements. a. The space-filling models for ethyl alcohol and dimethyl These two compounds have the same composition by mass (52% carbon, 13% hydrogen, and 35% oxygen), yet the two have different melting points, boiling points, and solubilities in water. b. Burning wood leaves an ash that is only a small fraction of the mass of the original wood. c. Atoms can be broken down into smaller particles. d. One sample of lithium hydride is 87.4% lithium by mass, while another sample of lithium hydride is 74.9% lithium by mass. However, the two samples have the same chemical properties.arrow_forwardParacelsus, a sixteenth-century alchemist and healer, adopted as his slogan: The patients are your textbook, the sickbed is your study. Is this view consistent with using the scientific method?arrow_forwardA sample of cocaine, C17H21O4N, is diluted with sugar, C12H22O11. When a 1.00-mg sample of this mixture is burned, 1.00 mL of carbon dioxide (d=1.80g/L) is formed. What is the percentage of cocaine in this mixture?arrow_forward
- Solid copper(II) chloride forms a hydrate of formula CuCl2 ⋅ xH2O. A student heated a sample of hydrated copper(II) chloride, in order to determine the value of x. The following results were obtained: mass of crucible = 16.221 g mass of crucible and hydrated copper(II) chloride = 18.360 g mass of crucible and anhydrous copper(II) chloride = 17.917 g At. Mass: Cu 63.55 Cl 35.45 H 1.008 O 16.00 1. Calculate percentage of H2O (answer must have 4 sig. fig)arrow_forwardA student caried out this experiment and obtained the following data: Patm = 656.7 mm Hg Vinitial = 0.30 mL Mass of Alka-Seltzer sample = 0.123 g TH2O = 27.0°C Vfinal = 17.05 mL Determine the following: a. Calculate the number of moles of carbon dioxide present. b. Calculate the mass of NaHCO3 present in the sample. c. Calculate the mass % of NaHCO3 in the Alka-Seltzer.arrow_forwardBoron has two naturally occurring isotopes, ¹⁰B (19.9%)and ¹¹B (80.1%). Although the B₂ molecule does not existnaturally on Earth, it has been produced in the laboratory andbeen observed in stars. (a) How many different B₂ moleculesare possible? (b) What are the masses and percent abundancesof each?arrow_forward
- Cocaine (C₁₇H₂₁O₄N) is a natural substance found in cocaleaves, which have been used for centuries as a local anestheticand stimulant. Illegal cocaine arrives in the United States eitheras the pure compound or as the hydrochloride salt(C₁₇H₂₁O₄NHCl). At 25C, the salt is very soluble in water(2.50 kg/L), but cocaine is much less so (1.70 g/L). (a) Whatis the maximum amount (in g) of the salt that can dissolve in50.0 mL of water? (b) If the solution in part (a) is treated withNaOH, the salt is converted to cocaine. How much additionalwater (in L) is needed to dissolve it?arrow_forwardYou take three compounds, each consisting of two elements (X, Y, and/or Z), and decompose them to their respective ele- ments. To determine the relative masses of X, Y, and Z, you collect and weigh the elements, obtaining the following data: a. What are the assumptions needed to solve this problem? b. What are the relative masses of X, Y, and Z?c. What are the chemical formulas of the three compounds? d. If you decompose 21 g of compound XY, how much of each element is present? I am requesting to have this equation simplied for I am not sure where the 15 comes from in the equation. How can one find the chemical formulas? Where does the 4.2 and the 0.4 come from? Why are the mases of X and Y multiplied with 1/5?arrow_forwardSolid copper(II) chloride forms a hydrate of formula CuCl2 ⋅ xH2O. A student heated a sample of hydrated copper(II) chloride, in order to determine the value of x. The following results were obtained: mass of crucible = 16.221 g mass of crucible and hydrated copper(II) chloride = 18.360 g mass of crucible and anhydrous copper(II) chloride = 17.917 g At. Mass: Cu 63.55 Cl 35.45 H 1.008 O 16.00 1. Calculate percentage of anhydrous copper(II) chloride (answer must have 4 sig. fig)arrow_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher: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 Learning