Hydrogen Ion Concentration Methods

The video tutorial explains how to find hydrogen ion concentration using pOH through four methods: using pH, hydroxyl ion concentration, direct calculation from pOH, and using the ion product constant. Each method is detailed with formulas and example calculations to demonstrate the process. The tutorial concludes with a practical example to reinforce the concepts.

What is the primary focus of the video tutorial?

• Determining the pH of a solution

• Finding pOH using hydrogen ion concentration

• Finding hydrogen ion concentration using pOH

• Calculating the molarity of a solution

Which formula is used to find pH from pOH?

• pH = pOH + 14

• pH = 14 - pOH

• pH = pOH - 14

• pH = 14 + pOH

In the first method, what is the next step after finding the pH?

• Determine the hydrogen ion concentration

• Find the original concentration

• Use the ion product constant

• Calculate hydroxyl ion concentration

What is the initial step in the second method?

• Find the pH

• Calculate hydroxyl ion concentration

• Determine the hydrogen ion concentration

• Use the ion product constant

How is the hydroxyl ion concentration calculated?

• 10 raised to the power of pOH

• 10 raised to the power of -pOH

• 10 raised to the power of pH

• 10 raised to the power of -pH

What is the relationship between pH and pOH?

• pH + pOH = 14

• pH - pOH = 14

• pH * pOH = 14

• pH / pOH = 14

In the third method, how is hydrogen ion concentration directly calculated from pOH?

• Using the formula 10 raised to the power of -pOH

• Using the formula 10 raised to the power of (14 - pOH)

• Using the formula 10 raised to the power of pOH

• Using the formula 10 raised to the power of (pOH - 14)

What constant is used in the fourth method to find hydrogen ion concentration?

• pH constant

• pOH constant

• Ion product constant (KW)

• Molarity constant

How is the ion product constant (KW) expressed?

• 10 raised to the power of 7

• 10 raised to the power of -7

• 10 raised to the power of 14

• 10 raised to the power of -14

What is the final step in the fourth method?

• Calculate pOH

• Multiply KW by hydroxyl ion concentration

• Calculate pH

• Divide KW by hydroxyl ion concentration