GEN COMBO CHEMISTRY: ATOMS FIRST; ALEKS 360 2S ACCESS CARD CHEMISTRY:ATOMS FIRST
3rd Edition
ISBN: 9781260020229
Author: Julia Burdge
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 8.4, Problem 8.8WE
Aspirin, acetylsalicylic acid (C9H8O4), is the most commonly used pain reliever in the world. It is produced by the reaction of salicylic acid (C7H6O3) and acetic anhydride (C4H6O3) according to the following equation.
In a certain aspirin synthesis, 104.8 g of salicylic acid and 110.9 g of acetic anhydride are combined. Calculate the percent yield of the reaction if 105.6 g of aspirin are produced.
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In the video, we looked at the absorbance of a certain substance and how it varies
depending on what wavelength of light we are looking at. Below is a similar scan of a
different substance. What color BEST describes how this substance will appear?
Absorbance (AU)
Violet
Blue
Green
Orange
1.2
1.0-
0.8-
0.6-
0.4-
0.2
0.0
450
500
550
600
650
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violet
indigo
blue
green
yellow orange
red
Red
O Cannot tell from this information
In the above graph, what causes -450 nm wavelength of light to have a higher
absorbance than light with a -550 nm wavelength? Check all that are true.
The distance the light travels is different
The different data points are for different substances
The concentration is different at different times in the experiment
Epsilon (molar absortivity) is different at different wavelengths
5. a. Data were collected for Trial 1 to determine the molar mass of a nonvolatile solid solute when dissolved in cyclo-
hexane. Complete the table for the analysis (See Report Sheet). Record calculated values with the correct number
of significant figures.
B. Freezing Point of Cyclohexane plus
Calculation Zone
Unknown Solute
2. Mass of cyclohexane (g)
10.14
Part C.4
3. Mass of added solute (g)
0.255
C. Calculations
1. k; for cyclohexane (°C⚫ kg/mol)
20.0
2. Freezing point change, AT, (°C)
3.04
Part C.6
3. Mass of cyclohexane in solution (kg)
4. Moles of solute, total (mol)
Show calculation.
5. Mass of solute in solution, total (g)
6. Molar mass of solute (g/mol)
Show calculation.
Chapter 8 Solutions
GEN COMBO CHEMISTRY: ATOMS FIRST; ALEKS 360 2S ACCESS CARD CHEMISTRY:ATOMS FIRST
Ch. 8.1 - Write and balance the chemical equation for the...Ch. 8.1 - Write and balance the chemical equation that...Ch. 8.1 - Prob. 1PPBCh. 8.1 - Prob. 1PPCCh. 8.1 - Butyric acid (also known as butanoic acid,...Ch. 8.1 - Another compound found in milk fat that appears to...Ch. 8.1 - Prob. 2PPBCh. 8.1 - Prob. 2PPCCh. 8.1 - Prob. 8.3WECh. 8.1 - Prob. 3PPA
Ch. 8.1 - Using the chemical species A2, B, and AB, write a...Ch. 8.1 - Prob. 3PPCCh. 8.1 - Prob. 8.1.1SRCh. 8.1 - Prob. 8.1.2SRCh. 8.1 - Prob. 8.1.3SRCh. 8.1 - Prob. 8.1.4SRCh. 8.1 - Prob. 8.1.5SRCh. 8.2 - Combustion of a 5.50-g sample of benzene produces...Ch. 8.2 - The combustion of a 28.1-g sample of ascorbic acid...Ch. 8.2 - Prob. 4PPBCh. 8.2 - Prob. 4PPCCh. 8.2 - Prob. 8.2.1SRCh. 8.2 - Prob. 8.2.2SRCh. 8.2 - Prob. 8.2.3SRCh. 8.3 - Prob. 8.5WECh. 8.3 - Nitrogen and hydrogen react to form ammonia...Ch. 8.3 - Prob. 5PPBCh. 8.3 - Prob. 5PPCCh. 8.3 - Prob. 8.6WECh. 8.3 - Calculate the mass of water produced by the...Ch. 8.3 - Prob. 6PPBCh. 8.3 - The models here represent the reaction of nitrogen...Ch. 8.3 - Prob. 8.3.1SRCh. 8.3 - What mass of lithium nitride is produced when 75.0...Ch. 8.3 - Prob. 8.3.3SRCh. 8.3 - Determine the stoichiometric amount (in grams) of...Ch. 8.4 - Alka-Seltzer tablets contain aspirin, sodium...Ch. 8.4 - Ammonia is produced by the reaction of nitrogen...Ch. 8.4 - Prob. 7PPBCh. 8.4 - The diagrams show a reaction mixture before and...Ch. 8.4 - Aspirin, acetylsalicylic acid (C9H8O4), is the...Ch. 8.4 - Diethyl ether is produced from ethanol according...Ch. 8.4 - What mass of ether will be produced if 207 g of...Ch. 8.4 - The diagrams show a mixture of reactants and the...Ch. 8.4 - How many moles of NH3 can be produced by the...Ch. 8.4 - Prob. 8.4.2SRCh. 8.4 - What is the percent yield for a process in which...Ch. 8.4 - Prob. 8.4.4SRCh. 8.4 - Reactants A (red) and B (blue) combine to form a...Ch. 8 - Calculate the mass of water produced in the...Ch. 8 - Calcium phosphide (Ca3P2) and water react to form...Ch. 8 - Prob. 8.3KSPCh. 8 - Prob. 8.4KSPCh. 8 - Prob. 8.1QPCh. 8 - Prob. 8.2QPCh. 8 - Why must a chemical equation he balanced? What law...Ch. 8 - Write an unbalanced equation to represent each of...Ch. 8 - Prob. 8.5QPCh. 8 - Prob. 8.6QPCh. 8 - For each of the following unbalanced chemical...Ch. 8 - Prob. 8.8QPCh. 8 - Balance the following equations using the method...Ch. 8 - Which of the following equations best represents...Ch. 8 - Prob. 8.11QPCh. 8 - Determine whether each of the following equations...Ch. 8 - Prob. 8.13QPCh. 8 - Prob. 8.14QPCh. 8 - Prob. 8.15QPCh. 8 - Prob. 8.16QPCh. 8 - Prob. 8.17QPCh. 8 - Prob. 8.18QPCh. 8 - Prob. 8.19QPCh. 8 - Prob. 8.20QPCh. 8 - Prob. 8.21QPCh. 8 - Prob. 8.22QPCh. 8 - Prob. 8.23QPCh. 8 - On what law is stoichiometry based? Why is it...Ch. 8 - Prob. 8.25QPCh. 8 - Prob. 8.26QPCh. 8 - Prob. 8.27QPCh. 8 - Prob. 8.28QPCh. 8 - Prob. 8.29QPCh. 8 - Prob. 8.30QPCh. 8 - Prob. 8.31QPCh. 8 - Prob. 8.32QPCh. 8 - Prob. 8.33QPCh. 8 - When copper(II) sulfate pentahydrate (CuSO4 5H2O)...Ch. 8 - For many years, the extraction of gold from other...Ch. 8 - Prob. 8.36QPCh. 8 - Nitrous oxide (N2O) is also called laughing gas....Ch. 8 - Prob. 8.38QPCh. 8 - Prob. 8.39QPCh. 8 - Prob. 8.1VCCh. 8 - Prob. 8.2VCCh. 8 - Prob. 8.3VCCh. 8 - Prob. 8.4VCCh. 8 - Prob. 8.40QPCh. 8 - Prob. 8.41QPCh. 8 - Why is the theoretical yield of a reaction...Ch. 8 - Why is the actual yield of a reaction almost...Ch. 8 - Prob. 8.44QPCh. 8 - Prob. 8.45QPCh. 8 - Reactants A (red) and B (blue) combine in the...Ch. 8 - Prob. 8.47QPCh. 8 - Prob. 8.48QPCh. 8 - Prob. 8.49QPCh. 8 - Propane (C3H8) is a minor component of natural gas...Ch. 8 - Prob. 8.51QPCh. 8 - Prob. 8.52QPCh. 8 - Prob. 8.53QPCh. 8 - Prob. 8.54QPCh. 8 - Prob. 8.55QPCh. 8 - Prob. 8.56QPCh. 8 - Disulfur dichloride (S2Cl2) is used in the...Ch. 8 - Prob. 8.58QPCh. 8 - Prob. 8.59QPCh. 8 - Prob. 8.60QPCh. 8 - Prob. 8.61QPCh. 8 - Prob. 8.62QPCh. 8 - Prob. 8.63QPCh. 8 - Prob. 8.64QPCh. 8 - Prob. 8.65QPCh. 8 - Industrially, nitric acid is produced by the...Ch. 8 - Prob. 8.67QPCh. 8 - Prob. 8.68QPCh. 8 - Prob. 8.69QPCh. 8 - Prob. 8.70QPCh. 8 - Prob. 8.71QPCh. 8 - Prob. 8.72QPCh. 8 - Prob. 8.73QPCh. 8 - Prob. 8.74QPCh. 8 - Prob. 8.75QPCh. 8 - Prob. 8.76QPCh. 8 - Prob. 8.77QPCh. 8 - Prob. 8.78QPCh. 8 - Prob. 8.79QPCh. 8 - The combustion of a 5.50-g sample of oxalic acid...Ch. 8 - Prob. 8.81QPCh. 8 - Prob. 8.82QPCh. 8 - Prob. 8.83QPCh. 8 - Prob. 8.84QPCh. 8 - Prob. 8.85QPCh. 8 - Prob. 8.86QPCh. 8 - Potash is any potassium mineral that is used for...Ch. 8 - A 21.496-g sample of magnesium is burned in air to...Ch. 8 - Prob. 8.89QPCh. 8 - Prob. 8.90QPCh. 8 - Prob. 8.91QPCh. 8 - Prob. 8.92QPCh. 8 - Prob. 8.93QPCh. 8 - Prob. 8.94QPCh. 8 - Prob. 8.95QPCh. 8 - Prob. 8.96QPCh. 8 - Prob. 8.97QPCh. 8 - Prob. 8.98QPCh. 8 - A compound X contains 63.3 percent manganese (Mn)...
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