When preparing sodium hydroxide solution,it is best to use water that does not contain any dissolved carbon dioxide as it reacts with the sodium hydroxide.Removing the carbon dioxide can be accomplished by:
A)vigorously stirring the solution.
B)using water fresh out of the purification system.
C)boiling the water.
D)Nothing can be done to remove dissolved gases.
E)none of the above

Question

Quizplus · Accepted Answer

Boiling the water is an effective method to remove dissolved carbon dioxide. When water is boiled, the solubility of gases (including CO2) in it decreases, causing the gases to escape into the atmosphere.

When Preparing Sodium Hydroxide Solution,it Is Best to Use Water