Domanda del libro di testo
(a) How many milliliters of 0.120 M HCl are needed to completely neutralize 50.0 mL of 0.101 M Ba(OH)2 solution?
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Ch.4 - Reactions in Aqueous Solution
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
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Capitolo 4, Problema 82b
(b) How many milliliters of 0.125 M H2SO4 are needed to neutralize 0.200 g of NaOH?
Guida verificata passo dopo passo1
Step 1: Write the balanced chemical equation for the neutralization reaction between sulfuric acid (H2SO4) and sodium hydroxide (NaOH). The balanced equation is: \[ \text{H}_2\text{SO}_4 + 2\text{NaOH} \rightarrow \text{Na}_2\text{SO}_4 + 2\text{H}_2\text{O} \]
Step 2: Calculate the number of moles of NaOH. Use the formula: \[ \text{moles of NaOH} = \frac{\text{mass of NaOH (g)}}{\text{molar mass of NaOH (g/mol)}} \] The molar mass of NaOH is approximately 40.00 g/mol.
Step 3: Use the stoichiometry of the balanced equation to find the moles of H2SO4 needed. According to the equation, 1 mole of H2SO4 reacts with 2 moles of NaOH. Therefore, \[ \text{moles of H}_2\text{SO}_4 = \frac{\text{moles of NaOH}}{2} \]
Step 4: Calculate the volume of 0.125 M H2SO4 solution required to provide the moles of H2SO4 calculated in Step 3. Use the formula: \[ \text{Volume (L)} = \frac{\text{moles of H}_2\text{SO}_4}{\text{Molarity of H}_2\text{SO}_4} \]
Step 5: Convert the volume from liters to milliliters by multiplying by 1000, since 1 L = 1000 mL.
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Molarity
Molarity (M) is a measure of concentration defined as the number of moles of solute per liter of solution. It is crucial for stoichiometric calculations in chemistry, allowing us to relate the volume of a solution to the amount of substance it contains. In this question, the molarity of sulfuric acid (H2SO4) is given, which will be used to determine how much volume is needed to neutralize a specific mass of sodium hydroxide (NaOH).
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01:13
Molarity
Neutralization Reaction
A neutralization reaction occurs when an acid reacts with a base to produce water and a salt. In this case, sulfuric acid (H2SO4) will react with sodium hydroxide (NaOH) to form sodium sulfate (Na2SO4) and water. Understanding the stoichiometry of this reaction is essential to determine the exact amounts of reactants needed for complete neutralization.
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05:56Lewis Dot Structures: Neutral Compounds
Stoichiometry
Stoichiometry is the calculation of reactants and products in chemical reactions based on the balanced chemical equation. It allows us to convert between grams, moles, and volumes of substances involved in a reaction. In this problem, stoichiometry will be used to relate the mass of NaOH to the moles of H2SO4 required for neutralization, ultimately leading to the calculation of the volume of the acid solution needed.
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01:16Stoichiometry Concept
Pratica correlata
Domanda del libro di testo
(d) If 45.3 mL of a 0.108 M HCl solution is needed to neutralize a solution of KOH, how many grams of KOH must be present in the solution?
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Domanda del libro di testo
(c) If 25.8 mL of an AgNO3 solution is needed to precipitate all the Cl- ions in a 785-mg sample of KCl (forming AgCl), what is the molarity of the AgNO3 solution?
Domanda del libro di testo
(d) If 42.7 mL of 0.208 M HCl solution is needed to neutralize a solution of Ca(OH)2, how many grams of Ca(OH)2 must be in the solution?
Domanda del libro di testo
(c) If 55.8 mL of a BaCl2 solution is needed to precipitate all the sulfate ion in a 752-mg sample of Na2SO4, what is the molarity of the BaCl2 solution?
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