p H value of a 0.015 M solution of hydrazoic acid should be calculated. Concept Introduction: The concentration of hydrogen ion is measured using pH scale. The acidity of aqueous solution is expressed by pH scale. For calculation of pH, the following formula is used, pH = − log [H + ] If the value of pH is less than 7 , then the solution is acidic whereas if the value of pH is greater than 7 , then the solution is basic.

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 HF is a weak acid. acids: 0.2 mol of KOH is added to 1.0 L of a 0.5 M HF solution. bases: Х other: ☐ acids: 0.10 mol of HI is added to 1.0 L of a solution that is 1.4M in both HF and NaF. bases: other: ☐ 0,0,... ด ? 18 Ar

Answer 1

Question

Chapter 14.7, Problem 14.9PSP

(a)

Interpretation Introduction

Interpretation:

pH value of a 0.015 M solution of hydrazoic acid should be calculated.

Concept Introduction:

The concentration of hydrogen ion is measured using pH scale. The acidity of aqueous solution is expressed by pH scale.

For calculation of pH, the following formula is used,

pH = −log[H+]

If the value of pH is less than 7, then the solution is acidic whereas if the value of pH is greater than 7, then the solution is basic.

(b)

Interpretation Introduction

Interpretation:

Percent ionization of hydrazoic acid should be calculated.

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