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How much chromium is in a 70 percent by weight concentration of sodium dichromate?
Wiki User
∙ 15y ago
Cr2Na2O7 Atomic Weight Cr - 51.996 Atomic Weight Na - 22.98977 Atomic Weight O - 15.9994 Atomic Weight Cr2Na2O7 - 261.96734 Atomic Weight Cr2 - 103.992 at 100% concentrationCr2 - Cr2Na2O7 = (103.992/261.96734)*100 = 39.70% Cr in Cr2Na2O7 at 70% concentration = 39.70*70%= 39.70*.70 = 27.79% Cr in Cr2NaO7 at 70% concentraion.
Wiki User
∙ 15y ago
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What substance is chromium found in?
Some chromium compounds: chromium bromides, chromium chlorides, chromium fluorides, chromium iodides, potassium dichromate, sodium chromate, chromium oxide, chromium sulfide, etc.
What is Na2CrO4 3H2O?
Na2Cr2O7 (the formula is not Na2CrO7) is sodium dichromate. Na2CrO4 is sodium chromate.
Is sodium dichromate organic?
No: Sodium dichromate contains no carbon and therefore can not be organic by the usual definitions.
What is the name of the compound with the formula Na2CrO4?
Li2Cr2O7 - lithium dichromate
How do you make sodium chromate?
Chromic acid and ammonium hydroxide react to yield ammonium dichromate followed by crystallization to yield a pure crystalline product. H2Cr2O7 + 2NH4OH ==> (NH4)2Cr2O7 + 2H2O Reactions with the dichromate ion should be avoided if possible due to the toxicity and possible carcinogenic nature of hexavalent chromium. Groundwater contamination with hexavalent chromium was the subject of the Hollywood movie Erin Brockovich.
What is the name of ionic compound Cr2O3?
That would be the bichromate or sometimes called the dichromate ion. Example: Sodium bichromate (or sodium dichromate) is Na2Cr2O7.
What is the formulae of sodium dichromate?
Na2Cr2O7
What is the chemical name of BaCr2O7?
It's name is "barium dichromate". Some people also use the antiquated (and wrong) term "bichromate", which should no longer be used. (See also the provided link.)
What is the formula name for Sodium Dichromate?
Na2Cr2O7
What is the difference between 3.8 percent sodium citrate concentration and 3.2 percent?
Presumably, 0.6 percent.
What is the formula for the compound sodium dichromate?
Sodium dichromate has the formula Na2Cr2O7.
Are sodium calcium and chromium metals nonmetals or metalloids?
Sodium, calcium and chromium are metals.
