QUIZ BENGKEL 'EXCELLENT CHM256 WITH MENTORS"

Give 1 example of primary standard solution

• Hydrochloric acid

• Sodium hydroxide

• Sodium carbonate

• Potassium permanganate

Calculate pH for 0.2 M H2SO4 solution

• 0.684

• 1.000

• 0.451

• 0.398

Determine the pH at equivalence point for titration of CH3COOH with KOH

• pH = 3

• pH = 7

• pH = 11

• pH = 6

Choose the correct co-precipitation

• Exclusion

• Inclusion

• Precipitation

• Digestion

Choose incorrect statement about crystalline precipitate

• High surface area

• Low RSS value

• Easily to filter

• Larger particle of precipitate

For Thin Layer Chromatography (TLC), one sample mixture contains two components, A and B were separated. Rf for A is 0.15 while Rf for B is 0.82. Identify which component elute first and its polarity.

• A - polar

• B - non polar

• A - non polar

• B - polar