A retrosynthesis of diphenadione has to be given. Concept introduction: Retro synthesis: It is a technique of planning an organic synthesis by the reverse approach. In this technique, the starting materials are obtained by cleaving the target molecule into logical synthons. Synthons are precursor fragments of the target compound when it is cleaved. Depending on the stability, the synthons are classified as logical and illogical synthons. Logical synthons are highly stable precursor fragments, and illogical synthons are less stable precursor fragments of the target compound.

Question

Calculating the pH at equivalence of a titration Try Again Your answer is incorrect. 0/5 a A chemist titrates 70.0 mL of a 0.7089 M hydrocyanic acid (HCN) solution with 0.4574M KOH solution at 25 °C. Calculate the pH at equivalence. The pK of hydrocyanic acid is 9.21. Round your answer to 2 decimal places. Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of KOH solution added. pH = 11.43] G 00. 18 Ar B•

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Question

Chapter 19, Problem 19.67P

Interpretation Introduction

Interpretation:

A retrosynthesis of diphenadione has to be given.

Concept introduction:

Retro synthesis: It is a technique of planning an organic synthesis by the reverse approach. In this technique, the starting materials are obtained by cleaving the target molecule into logical synthons. Synthons are precursor fragments of the target compound when it is cleaved. Depending on the stability, the synthons are classified as logical and illogical synthons. Logical synthons are highly stable precursor fragments, and illogical synthons are less stable precursor fragments of the target compound.

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Calculating the pH at equivalence of a titration Try Again Your answer is incorrect. 0/5 a A chemist titrates 70.0 mL of a 0.7089 M hydrocyanic acid (HCN) solution with 0.4574M KOH solution at 25 °C. Calculate the pH at equivalence. The pK of hydrocyanic acid is 9.21. Round your answer to 2 decimal places. Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of KOH solution added. pH = 11.43] G 00. 18 Ar B•

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