alum,sugar,and copper sulfate crystals
2007-02-02 04:47:23 · 3 answers · asked by U_SUCK!!!!! ; ) 1 in Science & Mathematics ➔ Chemistry
With alum it depends on which type of alum you are working with see:
http://en.wikipedia.org/wiki/Alum
For sugar, saturate a boiling water solution with sugar, and then out it in the freezer (Answer 0 degree C)
CuSO4 - that's a touch one. Solubility in water is 31g/100ml and the it forms the CuSO4•5H2O hydrate. This one I don't have an answer for. If you wanted anhydrous CuSO4 crystals you'd have to experiment with some solvents other than water.
But if you would settle for the hydrate then dissolve as much as you could in Hot water and cool to 0 C - filter to get CuSO4*5H2O
2007-02-02 05:17:50 · answer #1 · answered by Dr Dave P 7 · 0⤊ 0⤋
If the cool slowly and underground they would do better, They dont do as well above the ground because they have to grow quicker and they dont grow as full as possible.
Check this website out http://www.beloit.edu/%7ESEPM/Rocks_and_minerals/growing_crystals.html
2007-02-02 04:57:27 · answer #2 · answered by Journalism Geek 2 · 0⤊ 1⤋
for nacl, i think its 37c
2007-02-02 05:03:19 · answer #3 · answered by H G 1 · 0⤊ 1⤋