Gravimetric Analysis Quiz

What is the primary purpose of gravimetric analysis in chemistry?

• To increase the volume of a solution

• To change the color of a solution

• To determine the concentration of an ion in a solution

• To measure the temperature of a solution

Which of the following is crucial to ensure complete precipitation of the target ion?

• Adding a small amount of the counter ion

• Heating the solution to boiling

• Using a colored filter paper

• Adding an excess of the counter ion

What is the purpose of washing the precipitate during gravimetric analysis?

• To dissolve the precipitate

• To remove impurities

• To change the color of the precipitate

• To increase the mass of the precipitate

In the example provided, which compound is used to precipitate barium ions?

• Barium chloride

• Barium carbonate

• Barium nitrate

• Barium sulfate

What is the final step in determining the concentration of barium ions in the example?

• Calculating the molar mass of barium sulfate

• Measuring the volume of the solution

• Using stoichiometry to find the concentration

• Heating the solution to evaporate water