Textbook Question
A 0.944 M solution of glucose, C6H12O6, in water has a density of 1.0624 g/mL at 20 °C. What is the concentration of this solution in the following units? (b) Mass percent
Ch.13 - Solutions & Their Properties
McMurry8th EditionChemistryISBN: 9781292336145
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Table of contents
- Ch.1 - Chemical Tools: Experimentation & Measurement170
- Ch.2 - Atoms, Molecules & Ions160
- Ch.3 - Mass Relationships in Chemical Reactions169
- Ch.4 - Reactions in Aqueous Solution199
- Ch.5 - Periodicity & Electronic Structure of Atoms102
- Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory92
- Ch.7 - Covalent Bonding and Electron-Dot Structures61
- Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure59
- Ch.9 - Thermochemistry: Chemical Energy122
- Ch.10 - Gases: Their Properties & Behavior155
- Ch.11 - Liquids & Phase Changes54
- Ch.12 - Solids and Solid-State Materials73
- Ch.13 - Solutions & Their Properties120
- Ch.14 - Chemical Kinetics98
- Ch.15 - Chemical Equilibrium125
- Ch.16 - Aqueous Equilibria: Acids & Bases110
- Ch.17 - Applications of Aqueous Equilibria147
- Ch.18 - Thermodynamics: Entropy, Free Energy & Equilibrium86
- Ch.19 - Electrochemistry154
- Ch.20 - Nuclear Chemistry96
- Ch.21 - Transition Elements and Coordination Chemistry156
- Ch.22 - The Main Group Elements187
- Ch.23 - Organic and Biological Chemistry51
Chapter 13, Problem 80
Look at the solubility graph in Figure 13.7, and estimate which member of each of the following pairs has the higher molar solubility at the given temperature.(b) CH3CO2Na or glucose at 20 °C
Verified step by step guidance1
Identify the solubility values for CH3CO2Na and glucose at 20 °C from the solubility graph.
Note that the solubility graph provided does not include data for CH3CO2Na or glucose directly.
Understand that CH3CO2Na (sodium acetate) is an ionic compound and generally has higher solubility in water compared to glucose, which is a molecular compound.
Research or recall typical solubility values for CH3CO2Na and glucose at 20 °C. Sodium acetate typically has a solubility of around 119 g/100 mL, while glucose has a solubility of around 91 g/100 mL at 20 °C.
Compare the solubility values: CH3CO2Na has a higher molar solubility than glucose at 20 °C.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Molar Solubility
Molar solubility refers to the maximum amount of solute that can dissolve in a given volume of solvent at a specific temperature, expressed in moles per liter. It is a crucial concept in understanding how different substances behave in solution and is influenced by factors such as temperature and the nature of the solute and solvent.
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Molar Solubility Example
Solubility Graphs
Solubility graphs visually represent the solubility of various substances in a solvent, typically water, as a function of temperature. Each curve on the graph indicates how the solubility of a specific solute changes with temperature, allowing for easy comparison between different solutes at a given temperature.
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Comparative Analysis
Comparative analysis involves evaluating two or more substances to determine which has a higher or lower property—in this case, molar solubility. By examining the solubility graph, one can estimate the solubility of CH3CO2Na and glucose at 20 °C, facilitating a clear understanding of their relative solubility in water.
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Related Practice
Textbook Question
A 0.944 M solution of glucose, C6H12O6, in water has a density of 1.0624 g/mL at 20 °C. What is the concentration of this solution in the following units? (c) Molality
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Textbook Question
Lactose, C12H22O11, is a naturally occurring sugar found in mammalian milk. A 0.335 M solution of lactose in water has a density of 1.0432 g/L at 20 °C. What is the concentra- tion of this solution in the following units?(b) Mass percent
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Textbook Question
Fish generally need an O2 concentration in water of at least 4 mg/L for survival. What partial pressure of oxygen above the water in atmospheres at 0 °C is needed to obtain this concentration? The solubility of O2 in water at 0 °C and 1 atm partial pressure is 2.21 * 10-3 mol>L.
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