text: how can i prepare chromium nitrate solution? what is this? i already posted this qn last week and got no anwers? i dont know whats the reason? is wrong with my qn? ok let us try this time bye you combine a soluble chromium salt with a soluble nitrate. your goal is to cause the anion from your chromium and the cation from the nitrate to precipitate out of solution.  then you have it.  the easier way is to buy it and use di water