Whether methoxide ion is a better nucleophile in C H 3 O H or in DMSO has to be explained. Concept Introduction: Aprotic solvent are polar solvent molecules which do not have hydrogen bonded to oxygen to nitrogen. The stronger base is always a better nucleophile in an aprotic solvent. When the negatively charged species is placed in aprotic solvent, the solvent molecules arrange themselves with their partially positively charged hydrogens pointing towards the negatively charged species. The interaction between the ion and the dipole of the protic solvent is called an ion-dipole interaction

Question

Identifying the major species in weak acid or weak base equilibria Your answer is incorrect. • Row 2: Your answer is incorrect. • Row 3: Your answer is incorrect. • Row 6: Your answer is incorrect. 0/5 The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself. Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the formulas of the species that will act as neither acids nor bases in the 'other' row. You will find it useful to keep in mind that HF is a weak acid. acids: HF 0.1 mol of NaOH is added to 1.0 L of a 0.7M HF solution. bases: 0.13 mol of HCl is added to 1.0 L of a solution that is 1.0M in both HF and KF. Exponent other: F acids: HF bases: F other: K 1 0,0,... ? 000 18 Ar

Answer 1

Question

Chapter 9, Problem 79P

Interpretation Introduction

Interpretation:

Whether methoxide ion is a better nucleophile in CH3OH or in DMSO has to be explained.

Concept Introduction:

Aprotic solvent are polar solvent molecules which do not have hydrogen bonded to oxygen to nitrogen.

The stronger base is always a better nucleophile in an aprotic solvent. When the negatively charged species is placed in aprotic solvent, the solvent molecules arrange themselves with their partially positively charged hydrogens pointing towards the negatively charged species. The interaction between the ion and the dipole of the protic solvent is called an ion-dipole interaction

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