if i took a sample of washing soda and placed it in a beaker and exposed it to the air, as the time of exposure to air increases, what happends to the weight of the contents in the beaker??
would it:
increase?
decrease?
or remain the same.
2006-10-26 04:31:49 · 5 answers · asked by K&E4life 1 in Science & Mathematics ➔ Chemistry
Washing soda, Na2CO3, is hygroscopic and absorbs water from the air. therefore it will increase in weight.
2006-10-26 04:46:23 · answer #1 · answered by science teacher 7 · 0⤊ 0⤋
The weight increases as sodium hydroxide (washing soda) combines with carbon dioxide from the air to form sodium bicarbonate.
NaOH + CO2 = NaHCO3
2006-10-26 11:43:03 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I would like to help you but I have no idea what washing soda is? If it is a powdered substance it would remain the same weight. If it was a liquid than it would evaporate making it lighter.
2006-10-26 11:40:42 · answer #3 · answered by didey 3 · 0⤊ 0⤋
Washing soda is hygroscopic and will therefore absorb water from the atmosphere and increase in weight.
2006-10-26 11:39:55 · answer #4 · answered by Anonymous · 1⤊ 0⤋
Well, assuming washing soda is a stable material that will just sit there, and there is no wind, the weight will remain the same.
2006-10-26 11:35:22 · answer #5 · answered by Anonymous · 0⤊ 1⤋