Question

Will the mass of solid sodium hydroxide increase or decrease if exposed to air

Answer 1

NaOH (sodium hydroxide), when exposed to the air, will react with the carbon dioxide in air, to form sodium carbonate.

This means that sodium hydroxide as a solid or in solution will loose its strength with time and degree of exposure and solutions of NaOH will need to be standardised.

Answer 2

Answer:

the mass of sodium hydroxide will increase

Step-by-step explanation:

NaOH (sodium hydroxide), when exposed to the air, will react with the carbon dioxide in air, to form sodium carbonate.

This means that sodium hydroxide as a solid or in solution will loose its strength with time and degree of exposure and solutions of NaOH will need to be standardised.