What is solubility of chromium?

Answer 1

If At 25 Degrees C, the molar solubility of barium chromate in water is 1.1 x 10^-5 M. Here is how you would find the solubility in grams per liter.

First: You must know the molar mass of Barium Chromate To continue. Look at your Periodic Table.

[BariumChromate Molar mass=253.37 g/mol]

*Get this by adding together atomic number of each element in BaCrO4

*253.37= Ba+Cr+O(4), or 137.33+52+16(4)

*Take 1.1 x 10^-5 M and divide by molar mass of Barium Chromate

1.1 x 10^-5 mol/L x 253.37 =0.002787

Answer in grams per liter to three significant figures=2.787 x 10^-3 g/L

How many liters of water are required to dissolve 1 of barium chromate?

*take 1gram BaCrO4 / 2.787 x 10^-3 g/L --------> Grams Cancel

=2.787 x 10^-3 L

Answer in liters to three significant figures =359.71 Liters

What is the solubility of barium chromate in parts per million?

*parts per million = Grams of Solute/grams of solution X 10^6 (which is ppm)

2.787 x 10^-3g/L x 1L/1000g x 10^6 = 0.02779, or 2.78 x 10^-2ppm

Answer in parts per million to three significant figures=2.78ppm

**For dilute aqueous solutions, ppm is equivalent to units of mg/l

Answer 2

Chromium does not occur freely in nature. The main chromium mineral is chromite. Chromium compounds can be found in waters only in trace amounts. Many chromium compounds are relatively water insoluble. Chromium (III) compounds are water insoluble because these are largely bound to floating particles in water. Chromium (III) oxide and chromium (III) hydroxide are the only water soluble compounds.Chromium (VI) oxide is an example of an excellently water soluble chromium compounds

Answer 3

Chromium is sparingly soluble in water, with the solubility depending on the oxidation state of chromium. Chromium(III) compounds are relatively insoluble in water, while chromium(VI) compounds, such as chromates and dichromates, are more soluble.

Answer 4

Solubility:
6.5% @ 10C (50F) in water.

See the Web Links to the left for the original source.

Answer 5

Chromium (III) hydroxide is highly soluble in distilled water but dissolves readily in either acidic or basic solution

Answer 6

The anhydrous chromium(III) sulfate is not soluble in water; the hydrated salt is soluble in water.

Answer 7

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