The balanced equation has to be given for the reaction of hydrazine with O 2 dissolved in water. Concept Introduction: Hydrazine is a colorless liquid and is produced by oxidation of ammonia. Hydrazine is a base and is a strong reducing agent. It is used in treating waste water from chemical plants. It is also used to remove dissolved oxygen in water in electric generating plants. Hydrazine acts as a reducing agent and reduces the amount of dissolved oxygen. Otherwise, this dissolved oxygen can corrode the metals of pipes used in the plants. Balanced chemical equation of a reaction is written according to law of conservation of mass.

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Vnk the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest bolling point, choose 2 next to the substance with the next highest boiling point, and so on. substance C D chemical symbol, chemical formula or Lewis structure. CH,-N-CH, CH, H H 10: H C-C-H H H H Cale H 10: H-C-C-N-CH, Bri CH, boiling point (C) Сен (C) B (Choose

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Question

Chapter 21, Problem 49PS

(a)

Interpretation Introduction

Interpretation: The balanced equation has to be given for the reaction of hydrazine with O2 dissolved in water.

Concept Introduction: Hydrazine is a colorless liquid and is produced by oxidation of ammonia. Hydrazine is a base and is a strong reducing agent.

It is used in treating waste water from chemical plants. It is also used to remove dissolved oxygen in water in electric generating plants. Hydrazine acts as a reducing agent and reduces the amount of dissolved oxygen. Otherwise, this dissolved oxygen can corrode the metals of pipes used in the plants.

Balanced chemical equation of a reaction is written according to law of conservation of mass.

(b)

Interpretation Introduction

Interpretation: It should be calculated that the mass of N2H4 needed to consume all of the dissolved oxygen in 3×104 L of water.

Concept Introduction: Hydrazine is a colorless liquid and is produced by oxidation of ammonia. Hydrazine is a base and is a strong reducing agent.

It is used in treating waste water from chemical plants. It is also used to remove dissolved oxygen in water in electric generating plants. Hydrazine acts as a reducing agent and reduces the amount of dissolved oxygen. Otherwise, this dissolved oxygen can corrode the metals of pipes used in the plants.

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