Mole fraction of Oxygen, Nitrogen and Helium in a sample are given, their respective mass in the sample has to be calculated. Concept Introduction: A mixture is at least made up of two components. Mole fraction of a component in the solution correlates to the ratio of number of moles of that component to the total number of moles. It is expressed as, Mole fraction = n u m b e r of moles of a component t o t a l number of moles in the solution

Question

Complete the following table. The only density needed is already given. Show your calculations in a neat and easy-to-follow manner in the space below the table. All units should be included and significant figures should be given close attention. Be sure to notice that the amount of material should be in millimoles rather than moles, and the theoretical mass of the product should in milligrams rather than grams. LOCH 3 + H2SO4 HNO 3 O=C-OCH 3 NO2 x H₂O F.W. 4.0 mL 1.3 M amount 0.50 mL in H2SO4 mg Theoretical Theoretical mmoles density 1.09

Answer 1

Question

Chapter 12, Problem 12.92QP

Interpretation Introduction

Interpretation:

Mole fraction of Oxygen, Nitrogen and Helium in a sample are given, their respective mass in the sample has to be calculated.

Concept Introduction:

A mixture is at least made up of two components. Mole fraction of a component in the solution correlates to the ratio of number of moles of that component to the total number of moles. It is expressed as,

Mole fraction = number of moles of a componenttotal number of moles in the solution

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