MidYear MT MLS Anachem Post Lab Review Finals

Which of the following is true about vitamin C?

• Nonpolar soluble

• Reducing agent

• Sensitive to heat and light

• Oxidizing agent

Determine whether it is iodometry or iodimetry:
Utilizes Iodine as an oxidizing agent

• Iodimetry

• Iodometry

Determine if Iodimetry or Iodometry:
Used to quantify oxidizing agent

• Iodimetry

• Iodometry

It is an indirect titration method, measured and used prior to the redox titration through means of separate titration.

• Iodimetry

• Iodometry

End point for Iodimetry

• Appearance of a dark-blue color

• Disappearance of a dark-blue color

Which one forms a complex with starch?

• Potassium iodate

• Potassium iodide

• Iodine

• Triiodide

Which of the following is correct?

• Iodine is reduced

• Ascorbic acid is oxidized

• Iodine is oxidized

• Ascorbic acid is reduced

What makes up Ethylenediamine tetraacetic acid?

• Four carboxylic acid groups

• Four amine groups

• Two amine groups

• Two carboxylic acid groups

What is the end point for complexometric titration?

• Yellow

• Red

• Black

• Blue

Which of the following is true?

• pH 10 is needed to maintain the tetrabasic form

• Addition of HCl is needed to dissolve CaCO3 as CaCO3 is sparingly soluble in water

• Boiling of solution is needed to remove dissolved CO

• Adding Magnesium ions to the EDTA solution - to cause a sharper color change of the EBT indicator