Chromium (III) oxide, often called chromic oxide, has been used as green paint pigment, as a catylistin organic synthesis, as a polishing powder, and to make metallic chromium, One way to make chromium (III) oxide is by reacting sodium dichromate, Na2Cr2O7 with ammonium chloride at 800 to 1000 degrees celcius to form chromium (III) oxide, sodium chloride, nitrogen and water.
a) write a balanced equation for this reaction
b) What is the minimum mass, in megagrams, of ammonium chloride necessary to react completely with 275 Mg of sodium dichromate, Na2Cr2O7?
c) What is the maximum mass, in megagrams, of chromium (III) oxide that can be made from 275 Mg of sodium dichromate, Na2Cr2O7, and excess ammonium chloride?
d) If 147Mg of chromium (III) oxide is formed in the reaction of 275 Mg of sodium dichromate, Na2Cr2O7, with excess ammonium chloride, what is the percent yeild?
Chromium (III) oxide, often called chromic oxide, has been used as green paint pigment, as a catylistin organic synthesis, as a polishing powder, and to make metallic chromium, One way to make chromium (III) oxide is by reacting sodium dichromate, Na2Cr2O7 with ammonium chloride at 800 to 1000 degrees celcius to form chromium (III) oxide, sodium chloride, nitrogen and water.
a) write a balanced equation for this reaction
b) What is the minimum mass, in megagrams, of ammonium chloride necessary to react completely with 275 Mg of sodium dichromate, Na2Cr2O7?
c) What is the maximum mass, in megagrams, of chromium (III) oxide that can be made from 275 Mg of sodium dichromate, Na2Cr2O7, and excess ammonium chloride?
d) If 147Mg of chromium (III) oxide is formed in the reaction of 275 Mg of sodium dichromate, Na2Cr2O7, with excess ammonium chloride, what is the percent yeild?
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