Just one more question...please?

1 ⤊

Just one more question...please?

How can I prepare KCr(SO4)2*12H2O and in which group of bound does it belong?

2007-01-15 18:23:54 · 1 answers · asked by Andreja K 3 in Science & Mathematics ➔ Chemistry

1 answers

Dissolve equi-molar amounts of K2SO4 and Cr2(SO4)3 in distilled water, and slowly let the water evaporate. If you offer a crystal seed, you might grow a nice crystal of this alaun-like double salt (which has ionic bonds between the hydrated kations and the sulfate, and complex "bonds" between the hydrate shell and the cations).

2007-01-15 19:27:18 · answer #1 · answered by jorganos 6 · 1⤊ 0⤋