Why can't you wash the precipitate with water when you filter saturated calcium hydroxide solution? Washing has always been customary when you filter to obtain a pure sample of a solid material. What is the reasoning?
Thanks!!!
2007-05-28 09:34:37 · 4 answers · asked by Ethernaut 1 in Science & Mathematics ➔ Chemistry
Calcium hydroxide is fairly soluble in water. A saturated solution of Ca(OH)2 in water is called "lime water" Every time you wash the precipitate, you are washing away the product.
2007-05-28 09:39:43 · answer #1 · answered by steve_geo1 7 · 0⤊ 0⤋
This question is far above my level of understanding. However, i have looked up some of the things involved in this question, and it seems that water (H2O) can be used effectively to deliver the saturated calcium hydroxide for the purpose of making a solid formation. However, if you're wanting to wash the calcium formation after you've producted a solid, it seems logical to me that it would take a much stronger cleaning solution that the same substance than was used to deliver it in the first place. Try a soft acid solution.
2007-05-28 16:47:58 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The precipitate dissolves in the water
2007-05-28 16:37:48 · answer #3 · answered by koolguy 2 · 0⤊ 0⤋
calcium hydroxide is slightly soluble in water
2007-05-28 18:43:26 · answer #4 · answered by abd elmoniem m 2 · 0⤊ 0⤋