Domanda del libro di testo
Write balanced complete ionic and net ionic equations for each acid–base reaction. a. HI(aq) + RbOH(aq) →
1345
views
Ch.5 - Introduction to Solutions and Aqueous Solutions
Tro5th EditionChemistry: A Molecular ApproachISBN: 9780134874371
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch.1 - Matter, Measurement & Problem Solving117
- Ch.2 - Atoms & Elements106
- Ch.3 - Molecules and Compounds128
- Ch.4 - Chemical Reactions and Chemical Quantities56
- Ch.5 - Introduction to Solutions and Aqueous Solutions84
- Ch.6 - Gases112
- Ch.7 - Thermochemistry96
- Ch.8 - The Quantum-Mechanical Model of the Atom60
- Ch.9 - Periodic Properties of the Elements86
- Ch.10 - Chemical Bonding I: The Lewis Model91
- Ch.11 - Chemical Bonding II: Molecular Shapes, VSEPR & MO Theory85
- Ch.12 - Liquids, Solids & Intermolecular Forces51
- Ch.13 - Solids & Modern Materials48
- Ch.14 - Solutions93
- Ch.15 - Chemical Kinetics114
- Ch.16 - Chemical Equilibrium68
- Ch.17 - Acids and Bases137
- Ch.18 - Aqueous Ionic Equilibrium154
- Ch.19 - Free Energy & Thermodynamics91
- Ch.20 - Electrochemistry105
- Ch.21 - Radioactivity & Nuclear Chemistry74
- Ch.22 - Organic Chemistry141
Tro5th EditionChemistry: A Molecular ApproachISBN: 9780134874371Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testo
Tro 5th EditionCh.5 - Introduction to Solutions and Aqueous SolutionsProblema 58
Tro 5th EditionCh.5 - Introduction to Solutions and Aqueous SolutionsProblema 58Capitolo 5, Problema 58
A 30.00-mL sample of an unknown H3PO4 solution is titrated with a 0.100 M NaOH solution. The equivalence point is reached when 26.38 mL of NaOH solution is added. What is the concentration of the unknown H3PO4 solution? The neutralization reaction is H3PO4(aq) + 3 NaOH(aq) → 3 H2O(l) + Na3PO4(aq)
Guida verificata passo dopo passo1
Determine the total moles of NaOH used in the titration. Use the formula: moles = concentration (M) imes volume (L). Convert the volume of NaOH from mL to L by dividing by 1000.
From the balanced chemical equation, H3PO4(aq) + 3 NaOH(aq) → 3 H2O(l) + Na3PO4(aq), note that 1 mole of H3PO4 reacts with 3 moles of NaOH. Calculate the moles of H3PO4 by dividing the moles of NaOH by 3.
Calculate the concentration of the H3PO4 solution. Use the formula: concentration (M) = moles of solute / volume of solution (L). Convert the volume of the H3PO4 solution from mL to L by dividing by 1000.
Ensure the units are consistent when performing the calculations to avoid any errors in the final concentration.
Check your calculations for any possible arithmetic errors to ensure the accuracy of the concentration of the H3PO4 solution.
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:
4mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
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 until the reaction reaches its equivalence point, where the amount of titrant equals the amount of substance in the sample. This method is commonly used in acid-base reactions to find the concentration of an unknown acid or base.
Video consigliato:
Percorso guidato
03:04
Acid-Base Titration
Stoichiometry
Stoichiometry is the calculation of reactants and products in chemical reactions based on the balanced chemical equation. It allows chemists to determine the relationships between the quantities of substances involved in a reaction. In this case, the stoichiometry of the reaction between phosphoric acid (H3PO4) and sodium hydroxide (NaOH) indicates that one mole of H3PO4 reacts with three moles of NaOH, which is crucial for calculating the concentration of the unknown solution.
Video consigliato:
Percorso guidato
01:16Stoichiometry Concept
Molarity
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 (M). In this titration problem, the molarity of the NaOH solution is given, and by using the volume of NaOH added at the equivalence point, one can calculate the moles of NaOH used, which can then be related back to the moles of H3PO4 to find its concentration.
Video consigliato:
Percorso guidato
01:13Molarity
Pratica correlata
Domanda del libro di testo
Complete and balance each gas-evolution equation. c. HBr(aq) + Na2S(aq) →
515
views
Domanda del libro di testo
Write balanced complete ionic and net ionic equations for each acid–base reaction.
b. HCHO2(aq) + NaOH(aq) →
c. HC2H3O2(aq) + LiOH(aq) →
991
views
Domanda del libro di testo
A 25.00-mL sample of an unknown HClO4 solution requires titration with 22.62 mL of 0.2000 M NaOH to reach the equivalence point. What is the concentration of the unknown HClO4 solution? The neutralization reaction is HClO4(aq) + NaOH(aq) → H2O(l) + NaClO4(aq)
2380
views
1
rank
1
comments
Domanda del libro di testo
Complete and balance each gas-evolution equation. a. HNO3(aq) + Na2SO3(aq) →
1007
views
Domanda del libro di testo
Complete and balance each gas-evolution equation. b. NH4I(aq) + NaOH(aq) →
759
views