Featured in PASCO’s College Chemistry Instructor Guide
College Instructor edition with 36 experiments covering introductory and general chemistry topics.
Use a stainless steel temperature sensor with gravimetric analysis to determine the amount of sulfate in a sample of an unknown alkali sulfate.
In this activity, students use gravimetric analysis to determine the amount of sulfate in a sample of an unknown alkali sulfate.
Students gain experience conducting the following procedures:
Ring stand with ring
Crucible with lid
Beaker, glass, 400-mL
Beaker, glass, 250-mL
Beaker, 25-mL - 3
Beaker or flask, 400-mL,
Graduated cylinder, 100-mL
Graduated cylinder, 10-mL
Buret, 50 mL
0.5 M Barium chloride (BaCl2) - 30 mL
0.1 M Silver nitrate (AgNO3) - 5 mL
6 M Hydrochloric acid (HCl) - 5 mL
Unknown alkali sulfate (use K2SO4 and Na2SO4) - 0.35 g
Filter paper, Whatman® Ashless, #42
Rubber policeman and stirring rod
Watch glass, 100-mm
Distilled water 100 mL
Wash bottle with distilled water
This experiment may require software and an interface for data collection.