Domanda del libro di testo
What is the mass/volume percent concentration of the following solutions?
a. 0.078 mol KCl in 75 mL of solution
b. 0.044 mol sucrose (C12H22O11) in 380 mL of solution
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Ch.9 Solutions
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187
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TOC.tableOfContents
- Ch.1 Matter and Measurements27
- Ch.2 Atoms and the Periodic Table20
- Ch.3 Ionic Compounds8
- Ch.4 Molecular Compounds23
- Ch.5 Classification & Balancing of Chemical Reactions12
- Ch.6 Chemical Reactions: Mole and Mass Relationships28
- Ch.7 Chemical Reactions: Energy, Rate and Equilibrium64
- Ch.8 Gases, Liquids and Solids24
- Ch.9 Solutions52
- Ch.10 Acids and Bases25
- Ch.11 Nuclear Chemistry22
- Ch.12 Introduction to Organic Chemistry: Alkanes57
- Ch.13 Alkenes, Alkynes, and Aromatic Compounds47
- Ch.14 Some Compounds with Oxygen, Sulfur, or a Halogen50
- Ch.15 Aldehydes and Ketones45
- Ch.16 Amines42
- Ch.17 Carboxylic Acids and Their Derivatives57
- Ch.18 Amino Acids and Proteins82
- Ch.19 Enzymes and Vitamins63
- Ch.20 Carbohydrates44
- Ch.21 The Generation of Biochemical Energy65
- Ch.22 Carbohydrate Metabolism45
- Ch.23 Lipids42
- Ch.24 Lipid Metabolism33
- Ch.25 Protein and Amino Acid Metabolism24
- Ch.26 Nucleic Acids and Protein Synthesis45
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187Non è quello che usi tu?Cambia libro di testo
Capitolo 9, Problema 43
How is volume/volume percent concentration defined and for what types of solutions is it typically used?
Guida verificata passo dopo passo1
Volume/volume percent concentration (v/v %) is defined as the ratio of the volume of the solute to the total volume of the solution, multiplied by 100 to express it as a percentage.
The formula for volume/volume percent concentration is: .
This type of concentration is typically used for solutions where both the solute and the solvent are liquids, such as in alcoholic beverages or liquid cleaning products.
To calculate v/v %, measure the volume of the solute and the total volume of the solution using the same units (e.g., milliliters or liters).
Finally, substitute the measured values into the formula and multiply by 100 to express the concentration as a percentage.
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Volume/Volume Percent Concentration
Volume/volume percent concentration (v/v%) is a way to express the concentration of a solution, indicating the volume of solute present in 100 milliliters of solution. It is calculated by dividing the volume of the solute by the total volume of the solution and multiplying by 100. This measurement is particularly useful for solutions where both solute and solvent are liquids, allowing for a straightforward comparison of their volumes.
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Percorso guidato
00:52
Percent Concentrations Concept 1
Types of Solutions
Volume/volume percent concentration is typically used for liquid-liquid solutions, such as alcoholic beverages or chemical mixtures, where both components are in liquid form. This method of concentration is less applicable for solid or gas solutes, as it does not accurately reflect their contributions to the total volume of the solution. Understanding the types of solutions helps in selecting the appropriate concentration measurement.
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01:39Solutions
Applications in Chemistry
In chemistry, volume/volume percent concentration is crucial for preparing solutions with precise concentrations for experiments, ensuring consistency and reproducibility. It is commonly used in laboratory settings, pharmaceuticals, and industrial applications where accurate mixing of liquids is essential. Familiarity with this concept aids in understanding solution behavior and reactivity in various chemical processes.
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04:09The Ideal Gas Law Applications
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The solubility of NH3 gas in water at an NH₃ pressure of 760.0 mmHg and 25°C is 51.8 g/100 mL and 27.0 g/100 mL at 50°C.
a.What is the solubility of NH3 if its partial pressure is reduced to 225.0 mmHg?
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Domanda del libro di testo
The solubility of CO2 gas in water is 0.15 g/100 mL at a CO2 pressure of 760 mmHg.
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A dilute aqueous solution of boric acid, H3BO3 is often used as an eyewash. How would you prepare 500.0 mL of a 0.50% (m/v) boric acid solution?
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Domanda del libro di testo
How many moles of each substance are needed to prepare the following solutions?
a. 50.0 mL of 8.0% (m/v) KCl (MW = 74.55 g/mol)
b. 200.0 mL of 7.5% (m/v) acetic acid (MW = 60.05 g/mol)
967
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Domanda del libro di testo
The solubility of NH3 gas in water at an NH3 pressure of 760.0 mmHg and 25°C is 51.8 g/100 mL and 27.0 g/100 mL at 50°C.
b. How many moles of NH3 would be released from 1.0 L of a saturated NH3 solution if the temperature was increased from 25 to 50 °C?
1759
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