Domanda del libro di testo
(b) What volume of HCl is needed to neutralize 2.87 g of Mg(OH)2?
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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 82a
(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?
Guida verificata passo dopo passo1
Step 1: Write down the balanced chemical equation for the reaction. In this case, the reaction is between hydrochloric acid (HCl) and barium hydroxide (Ba(OH)2). The balanced equation is: 2HCl + Ba(OH)2 -> BaCl2 + 2H2O
Step 2: Calculate the moles of Ba(OH)2 in the solution using the formula: moles = volume (in liters) x molarity. In this case, the volume of Ba(OH)2 solution is 50.0 mL or 0.050 L and the molarity is 0.101 M.
Step 3: From the balanced chemical equation, we can see that the stoichiometric ratio between HCl and Ba(OH)2 is 2:1. This means that for every mole of Ba(OH)2, we need 2 moles of HCl to neutralize it. So, multiply the moles of Ba(OH)2 by 2 to get the moles of HCl needed.
Step 4: Now, calculate the volume of HCl solution needed using the formula: volume (in liters) = moles / molarity. In this case, the molarity of HCl is 0.120 M. Convert the volume from liters to milliliters by multiplying by 1000.
Step 5: The result is the volume of 0.120 M HCl needed to completely neutralize the 50.0 mL of 0.101 M Ba(OH)2 solution.
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Neutralization Reaction
A neutralization reaction occurs when an acid reacts with a base to produce water and a salt. In this case, hydrochloric acid (HCl) reacts with barium hydroxide (Ba(OH)2). The balanced chemical equation helps determine the stoichiometric relationships between the reactants, which is essential for calculating the volumes needed for complete neutralization.
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05:56
Lewis Dot Structures: Neutral Compounds
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). In this question, the molarity of HCl and Ba(OH)2 solutions is crucial for determining how much of each solution is required for the reaction, as it allows for the conversion between volume and the amount of substance.
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00:53Molarity Concept
Stoichiometry
Stoichiometry involves the calculation of reactants and products in chemical reactions based on the balanced equation. It allows us to determine the proportions of substances consumed and produced. In this scenario, stoichiometry is used to relate the moles of HCl needed to neutralize the moles of Ba(OH)2 present in the solution, facilitating the calculation of the required volume of HCl.
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01:16Stoichiometry Concept
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