Domanda del libro di testo
Identify the stronger base in each of the following pairs.
Explain your reasoning.
(c) HS- or OH-
119
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Ch.16 - Aqueous Equilibria: Acids & Bases
McMurry8th EditionChemistryISBN: 9781292336145
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TOC.tableOfContents
- 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
Capitolo 16, Problema 76d
Calculate the H3O+ concentration to the correct number of significant figures for solutions with the following pH values. (d) 14.25
Guida verificata passo dopo passo1
Understand that pH is a measure of the acidity of a solution, defined as the negative logarithm (base 10) of the hydronium ion concentration: \( \text{pH} = -\log[\text{H}_3\text{O}^+] \).
To find the \([\text{H}_3\text{O}^+]\) concentration from a given pH, use the inverse of the logarithm function: \([\text{H}_3\text{O}^+] = 10^{-\text{pH}}\).
Substitute the given pH value into the equation: \([\text{H}_3\text{O}^+] = 10^{-14.25}\).
Calculate the power of 10 using the given pH value to find the \([\text{H}_3\text{O}^+]\) concentration.
Ensure that the final answer is expressed with the correct number of significant figures, which should match the number of decimal places in the given pH value.
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pH Scale
The pH scale measures the acidity or basicity of a solution, ranging from 0 to 14. A pH of 7 is considered neutral, while values below 7 indicate acidity and values above 7 indicate basicity. The scale is logarithmic, meaning each whole number change represents a tenfold change in hydrogen ion concentration.
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Percorso guidato
02:33
The pH Scale
Hydronium Ion Concentration
The concentration of hydronium ions (H3O+) in a solution is directly related to its pH. The formula to calculate H3O+ concentration from pH is [H3O+] = 10^(-pH). This relationship allows for the conversion of pH values into molarity of hydronium ions, which is essential for understanding the solution's acidity.
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Percorso guidato
06:25Hydronium Ion Concentration Example
Significant Figures
Significant figures are the digits in a number that contribute to its precision. When performing calculations, especially in chemistry, it is crucial to report results with the correct number of significant figures based on the precision of the measurements involved. This ensures that the reported concentration accurately reflects the reliability of the data.
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01:09Significant Figures Example
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