can you give me the equations of
(a) blue vitriol exposed to the atmosphere
(b) anhydrous calcium chloride exposed to the atmosphere
(c) Glauber's salt exposed to the atmosphere
these three are hydratse, what can you say about the behavior of these when exposed to the air?
Help me..
2007-01-21 23:38:30 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
i can only help you on (b) pal
CaCl2.xH2O -> CaCl2 + xH2O
2007-01-21 23:48:16 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I'll assume that the word you meant to use was
Hydrates. Here this will explain what they are, and its a great clue as to the answer to the questions you got.
Hydrates are substances that include water into their formula.
The water is not actually part of the chemical substance and this is reflected in the way the formula is written.
Here is the example: CuSO4 . 5 H2O
This formula means that for every one CuSO4 in the piece of this substance you are holding, there are also five water molecules. No, the substance is not wet, it appears dry. There are some hydrates that have a wet appearence, but most appear perfectly dry to the eye and to the touch.
The dot IS NOT a multiplication sign. Remember, this is chemistry, not math.
Here is the name: copper(II) sulfate pentahydrate. Notice penta meaning five and hydrate meaning water. You would use this name both when writing the name or speaking it.
That means that when you hear "pentahydrate," you have to know to write the dot and then the 5 H2O.
2007-01-22 00:05:30 · answer #2 · answered by Old guy 124 6 · 1⤊ 0⤋
They will absorb water or lose it depending upon the temperature and the humidity level.
2007-01-22 01:10:04 · answer #3 · answered by ag_iitkgp 7 · 0⤊ 0⤋
More details required
2016-08-09 00:37:39 · answer #4 · answered by ? 3 · 0⤊ 0⤋
Thankyou for all the answers
2016-08-23 15:51:47 · answer #5 · answered by ? 4 · 0⤊ 0⤋