Domanda del libro di testo
The value of Ksp for Cd(OH)2 is 2.5 × 10-14. (a) What is the molar solubility of Cd(OH)2?
Ch.17 - Additional Aspects of Aqueous Equilibria
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
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
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testo
Brown 14th EditionCh.17 - Additional Aspects of Aqueous EquilibriaProblema 111a
Brown 14th EditionCh.17 - Additional Aspects of Aqueous EquilibriaProblema 111aCapitolo 17, Problema 111a
(a) A 0.1044-g sample of an unknown monoprotic acid requires 22.10 mL of 0.0500 M NaOH to reach the end point. What is the molar mass of the unknown?
Guida verificata passo dopo passo1
Identify that the problem involves a titration of a monoprotic acid with NaOH, where the acid reacts with NaOH in a 1:1 molar ratio.
Calculate the moles of NaOH used in the titration using the formula: \( \text{moles of NaOH} = \text{volume (L)} \times \text{molarity (M)} \).
Since the acid is monoprotic, the moles of acid will be equal to the moles of NaOH at the endpoint.
Use the mass of the acid sample and the moles of acid to calculate the molar mass of the acid using the formula: \( \text{molar mass} = \frac{\text{mass of acid (g)}}{\text{moles of acid}} \).
Ensure all units are consistent and check calculations for accuracy.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
3mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Monoprotic Acid
A monoprotic acid is an acid that can donate only one proton (H⁺ ion) per molecule during a chemical reaction. This characteristic is crucial for understanding acid-base reactions, as it determines the stoichiometry of the reaction with a base, such as sodium hydroxide (NaOH). In this case, the amount of NaOH used will directly relate to the amount of the monoprotic acid present in the sample.
Video consigliato:
Percorso guidato
01:03
Binary Acids
Molarity and Volume Relationship
Molarity (M) is a measure of concentration defined as the number of moles of solute per liter of solution. The relationship between molarity, volume, and moles is given by the equation: moles = molarity × volume. In this problem, the volume of NaOH used allows us to calculate the moles of NaOH, which equals the moles of the monoprotic acid at the equivalence point, enabling the determination of the acid's molar mass.
Video consigliato:
Percorso guidato
01:21Standard Molar Volume
Molar Mass Calculation
Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). To find the molar mass of the unknown acid, we use the formula: molar mass = mass of the sample (g) / moles of the acid. By calculating the moles of the acid from the moles of NaOH used, we can determine the molar mass, which is essential for identifying the unknown acid.
Video consigliato:
Percorso guidato
03:12Molar Mass Calculation Example
Pratica correlata
Domanda del libro di testo
(a) Write the net ionic equation for the reaction that occurs when a solution of hydrochloric acid (HCl) is mixed with a solution of sodium formate 1NaCHO22.
1573
views
Domanda del libro di testo
(b) As the acid is titrated, the pH of the solution after the addition of 11.05 mL of the base is 4.89. What is the Ka for the acid?
796
views
Domanda del libro di testo
What is the pH at 25 C of water saturated with CO2 at a partial pressure of 1.10 atm? The Henry's law constant for CO2 at 25 C is 3.1 * 10-2 mol>L@atm.
840
views
Domanda del libro di testo
The value of Ksp for Cd(OH)2 is 2.5 × 10–14. (b) The solubility of Cd(OH)2 can be increased through formation of the complex ion CdBr42- (Kf = 5 × 103). If solid Cd(OH)2 is added to a NaBr solution, what is the initial concentration of NaBr needed to increase the molar solubility of Cd(OH)2 to 1.0 × 10-3 mol/L?
406
views