Domanda del libro di testo
A 20.0-mL sample of 0.200 M HBr solution is titrated with 0.200 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added:
(c) 20.0 mL.
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Ch.17 - Additional Aspects of Aqueous Equilibria
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement177
- Ch.2 - Atoms, Molecules, and Ions231
- Ch.3 - Chemical Reactions and Reaction Stoichiometry216
- Ch.4 - Reactions in Aqueous Solution189
- Ch.5 - Thermochemistry175
- Ch.6 - Electronic Structure of Atoms168
- Ch.7 - Periodic Properties of the Elements150
- Ch.8 - Basic Concepts of Chemical Bonding177
- Ch.9 - Molecular Geometry and Bonding Theories200
- Ch.10 - Gases179
- Ch.11 - Liquids and Intermolecular Forces113
- Ch.12 - Solids and Modern Materials154
- Ch.13 - Properties of Solutions157
- Ch.14 - Chemical Kinetics199
- Ch.15 - Chemical Equilibrium128
- Ch.16 - Acid-Base Equilibria164
- Ch.17 - Additional Aspects of Aqueous Equilibria163
- Ch.18 - Chemistry of the Environment105
- Ch.19 - Chemical Thermodynamics164
- Ch.20 - Electrochemistry171
- Ch.21 - Nuclear Chemistry122
- Ch.22 - Chemistry of the Nonmetals82
- Ch.23 - Transition Metals and Coordination Chemistry79
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
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Brown 14th EditionCh.17 - Additional Aspects of Aqueous EquilibriaProblema 42b
Brown 14th EditionCh.17 - Additional Aspects of Aqueous EquilibriaProblema 42bCapitolo 17, Problema 42b
How many milliliters of 0.105 M HCl are needed to titrate each of the following solutions to the equivalence point: (b) 22.5 mL of 0.118 M NH3?
Guida verificata passo dopo passo1
Identify the balanced chemical equation for the reaction: \[ \text{NH}_3 + \text{HCl} \rightarrow \text{NH}_4\text{Cl} \].
Determine the moles of \( \text{NH}_3 \) present in the solution using the formula: \[ \text{moles of NH}_3 = M_1 \times V_1 \], where \( M_1 = 0.118 \text{ M} \) and \( V_1 = 22.5 \text{ mL} \) (convert \( V_1 \) to liters).
Since the reaction is a 1:1 molar ratio, the moles of \( \text{HCl} \) needed will be equal to the moles of \( \text{NH}_3 \).
Use the moles of \( \text{HCl} \) to find the volume of \( 0.105 \text{ M} \) \( \text{HCl} \) required: \[ V_2 = \frac{\text{moles of HCl}}{M_2} \], where \( M_2 = 0.105 \text{ M} \).
Convert the volume \( V_2 \) from liters to milliliters to find the final answer.
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Titration
Titration is a quantitative analytical technique used to determine the concentration of a solute in a solution. It involves the gradual addition of a titrant (a solution of known concentration) to a sample solution until the reaction reaches its equivalence point, where the amount of titrant equals the amount of substance in the sample. This process is often indicated by a color change or a pH change, depending on the type of titration.
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Percorso guidato
03:04
Acid-Base Titration
Molarity (M)
Molarity is a measure of concentration defined as the number of moles of solute per liter of solution. It is expressed in moles per liter (mol/L) and is crucial for calculations in titration, as it allows for the determination of how much of a reactant is needed to completely react with a given volume of another reactant. Understanding molarity is essential for accurately calculating the volumes required in titration experiments.
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Percorso guidato
00:53Molarity Concept
Neutralization Reaction
A neutralization reaction occurs when an acid reacts with a base to produce water and a salt. In the context of titration, the acid (HCl) and the base (NH3) react in a stoichiometric ratio, which is determined by their balanced chemical equation. For strong acids and weak bases, the equivalence point is reached when the number of moles of acid equals the number of moles of base, allowing for the calculation of the required volume of acid to achieve neutralization.
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05:56Lewis Dot Structures: Neutral Compounds
Pratica correlata
Domanda del libro di testo
How many milliliters of 0.105 M HCl are needed to titrate each of the following solutions to the equivalence point: (a) 45.0 mL of 0.0950 M NaOH? (c) 125.0 mL of a solution that contains 1.35 g of NaOH per liter?
Domanda del libro di testo
How many milliliters of 0.0850 M NaOH are required to titrate each of the following solutions to the equivalence point: (b) 35.0 mL of 0.0850 M CH3COOH?
Domanda del libro di testo
How many milliliters of 0.0850 M NaOH are required to titrate each of the following solutions to the equivalence point: (c) 50.0 mL of a solution that contains 1.85 g of HCl per liter?
1328
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Domanda del libro di testo
A 20.0-mL sample of 0.200 M HBr solution is titrated with 0.200 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added:
(a) 15.0 mL
(b) 19.9 mL.
115
views
Domanda del libro di testo
A 20.0-mL sample of 0.200 M HBr solution is titrated with 0.200 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added: (e) 35.0 mL.
1918
views