Unit 3

Question 1

What are auxiliary reducing and oxidizing reagents used for

Answer 1

To pre treat, oxidize or reduce compounds in solution (example oxidizing all Fe2+ to Fe3+)

Question 2

Example of auxiliary reducing agent

Answer 2

Zinc

Question 3

Example of auxiliary oxidizing agent

Answer 3

Hydrogen peroxide

Question 4

Example of standard reducing agent

Answer 4

Fe2+

Question 5

Example of standard oxidizing agent

Answer 5

Permanganate

Question 6

What reaction is never at equilibrium

Answer 6

Reference and beaker

Question 7

Alkaline Error

Answer 7

pH electrode interacts with sodium and think its hydrogen at high pHs thus it will think the pH is lower than it actually is

Question 8

What does Nikolsky Equation correct for and how

Answer 8

It corrects for alkaline error because it taken the selectivity of the analyte and interfering into consideration

Question 9

What does Total Ionic Strength Adjustment Buffer

Answer 9

Raises ionic strength so the activity can be measured instead of concentration