How gas exert atmospheric pressure. Conceptual Introduction: Gas molecules do not have fixed shape or volume. There is continuous motion between the gas molecules. They collide with each other and the walls of the container (If kept). As the molecules moves around, they bump into each other, this creates pressure. This pressure is exerted from all direction at once. Solutions: Due to gas molecule continuous motion and collision with each other pressure is created. To determine: Pressure exerted by gas in atmosphere.

Question

Identifying the major species in weak acid or weak base equilibria 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 NH3 is a weak base. acids: ☐ 1.8 mol of HCl is added to 1.0 L of a 1.0M NH3 bases: ☐ solution. other: ☐ 0.18 mol of HNO3 is added to 1.0 L of a solution that is 1.4M in both NH3 and NH₁Br. acids: bases: ☐ other: ☐ 0,0,... ? 000 18 Ar B 1

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Question

Chapter 5, Problem 5.9PAE

Interpretation Introduction

Interpretation:

How gas exert atmospheric pressure.

Conceptual Introduction:

Gas molecules do not have fixed shape or volume. There is continuous motion between the gas molecules. They collide with each other and the walls of the container (If kept). As the molecules moves around, they bump into each other, this creates pressure. This pressure is exerted from all direction at once.

Solutions:

Due to gas molecule continuous motion and collision with each other pressure is created.

To determine:

Pressure exerted by gas in atmosphere.

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Identifying the major species in weak acid or weak base equilibria 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 NH3 is a weak base. acids: ☐ 1.8 mol of HCl is added to 1.0 L of a 1.0M NH3 bases: ☐ solution. other: ☐ 0.18 mol of HNO3 is added to 1.0 L of a solution that is 1.4M in both NH3 and NH₁Br. acids: bases: ☐ other: ☐ 0,0,... ? 000 18 Ar B 1

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