The partial pressures hydrogen gas in the given sample and number of grams of zinc is reacted in sample are needed to be determined. Concept introduction: Partial pressure of a gas in a mixture of gases is the pressure of that gas when it alone. Total pressure of a flask containing mixture of gases is the sum of individual partial pressures of constituted gases. Number of moles of a substance, According to ideal gas equation, Number of moles = Pressure × Volume R × Temperature Number of grams of a substance from its number of moles is, Number of moles × Molecular mass in grams = Number of grams

Question

It is not unexpected that the methoxyl substituent on a cyclohexane ring prefers to adopt the equatorial conformation. OMe H A G₂ = +0.6 kcal/mol OMe What is unexpected is that the closely related 2-methoxytetrahydropyran prefers the axial conformation: H H OMe OMe A Gp=-0.6 kcal/mol Methoxy: CH3O group Please be specific and clearly write the reason why this is observed. This effect that provides stabilization of the axial OCH 3 group in this molecule is called the anomeric effect. [Recall in the way of example, the staggered conformer of ethane is more stable than eclipsed owing to bonding MO interacting with anti-bonding MO...]

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Question

Chapter 5, Problem 91E

Interpretation Introduction

Interpretation: The partial pressures hydrogen gas in the given sample and number of grams of zinc is reacted in sample are needed to be determined.

Concept introduction:

Partial pressure of a gas in a mixture of gases is the pressure of that gas when it alone.

Total pressure of a flask containing mixture of gases is the sum of individual partial pressures of constituted gases.

Number of moles of a substance, According to ideal gas equation,

Number of moles = Pressure × VolumeR × Temperature

Number of grams of a substance from its number of moles is,

Number of moles × Molecular mass in grams = Number of grams

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