Skip to main content
Ch.9 - Thermochemistry: Chemical Energy
McMurry - Chemistry 8th Edition
McMurry8th EditionChemistryISBN: 9781292336145Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoMcMurry 8th EditionCh.9 - Thermochemistry: Chemical EnergyProblema 153d
Capitolo 9, Problema 153d

(d) What is the molarity of the KOH solution prepared in part (c), and how many milliliters of 0.554 M H2SO4 are required to neutralize it?

Guida verificata passo dopo passo
1
insert step 1: Determine the moles of KOH in the solution prepared in part (c). Use the formula: moles = mass (g) / molar mass (g/mol).
insert step 2: Calculate the molarity of the KOH solution. Molarity (M) is defined as moles of solute per liter of solution. Use the formula: M = moles of KOH / volume of solution in liters.
insert step 3: Write the balanced chemical equation for the neutralization reaction between KOH and H2SO4: 2 KOH + H2SO4 -> K2SO4 + 2 H2O.
insert step 4: Use stoichiometry to determine the moles of H2SO4 required to neutralize the moles of KOH. From the balanced equation, 1 mole of H2SO4 reacts with 2 moles of KOH.
insert step 5: Calculate the volume of 0.554 M H2SO4 needed to provide the required moles of H2SO4. Use the formula: volume (L) = moles of H2SO4 / molarity of H2SO4, and convert the volume from liters to milliliters.

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:
11m

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Molarity

Molarity is a measure of concentration defined as the number of moles of solute per liter of solution. It is expressed in units of moles per liter (M). Understanding molarity is essential for calculating how much of a substance is present in a solution, which is crucial for stoichiometric calculations in chemical reactions.
Video consigliato:
Percorso guidato
01:13
Molarity

Neutralization Reaction

A neutralization reaction occurs when an acid reacts with a base to produce water and a salt. In this context, sulfuric acid (H2SO4) will react with potassium hydroxide (KOH). The stoichiometry of the reaction, which involves the balanced equation, is important for determining the volumes and concentrations needed for complete neutralization.
Video consigliato:
Percorso guidato
05:56
Lewis Dot Structures: Neutral Compounds

Stoichiometry

Stoichiometry is the calculation of reactants and products in chemical reactions based on the balanced chemical equation. It allows chemists to predict how much of each substance is needed or produced in a reaction. In this case, stoichiometry will help determine the volume of H2SO4 required to neutralize the KOH solution by using the molarity and the mole ratio from the balanced equation.
Video consigliato:
Percorso guidato
01:16
Stoichiometry Concept
Pratica correlata
Domanda del libro di testo

Reaction of gaseous fluorine with compound X yields a single product Y, whose mass percent composition is 61.7% F and 38.3% Cl. (a) What is a probable molecular formula for product Y, and what is a probable formula for X?

504
views
Domanda del libro di testo

(b) Use the data in Appendix B to calculate ΔH° for the reaction of potassium metal with water.

1136
views
Domanda del libro di testo

(c) Assume that a chunk of potassium weighing 7.55 g is dropped into 400.0 g of water at 25.0 °C. What is the final temperature of the water if all the heat released is used to warm the water?

390
views
Domanda del libro di testo
Hydrazine, a component of rocket fuel, undergoes combus- tion to yield N2 and H2O: N2H41l2 + O21g2 S N21g2 + 2 H2O1l2 (b) Use the following information to set up a Hess's law cycle, and then calculate ΔH° for the combustion reac- tion. You will need to use fractional coefficients for some equations. 2 NH31g2 + 3 N2O1g2 S 4 N21g2 + 3 H2O1l2 ΔH° = - 1011.2 kJ N2O1g2 + 3 H21g2 S N2H41l2 + H2O1l2 ΔH° = - 317.2 kJ 4 NH31g2 + O21g2 S 2 N2H41l2 + 2 H2O1l2 ΔH° = - 286.0 kJ H2O1l2 ΔH°f = - 285.8 kJ>mol
857
views
Domanda del libro di testo

(a) Write a balanced equation for the reaction of potassium metal with water.

1361
views
Domanda del libro di testo
Reaction of gaseous fluorine with compound X yields a sin- gle product Y, whose mass percent composition is 61.7% F and 38.3% Cl. (c) Calculate ΔH° for the synthesis of Y using the following information: 2 CIF1g2 + O21g2 S Cl2O1g2 + OF21g2 ΔH° = + 205.4 kJ 2 CIF31l2 + 2 O21g2 S Cl2O1g2 + 3 OF21g2 ΔH° = + 532.8 kJ OF21g2 ΔH°f = + 24.5 kJ>mol
424
views