Science-Chemistry

posted by .

In the following test for Sulfated Ash, ammonium carbonate solution was added. What is the purpose of adding ammonium carbonate solution?

Heat a silica crucible to redness for 30 minutes, allow to cool in a desiccator and weigh. Place 1g of the substance in the crucible and add 2ml of 1mol/L Sulphuric Acid. Heat, first on a water bath, then cautiously over a flame,then progressively to about 600°C. Continue the incineration until all black particles have disappeared and then allow the crucible to cool. Add a few drops of 1mol/L Sulphuric Acid, heat and incinerate as before and allow to cool. Add a few drops of Ammonium Carbonate solution (15.8g in 100ml).Evaporate and incinerate carefully,allow to cool, weigh and repeat the ignition for 15 minutes to constant weight.

Thanks.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    Ammonium carbonate decomposes upon heating according to the following balanced equation: (NH4)2CO3(s)-->2 NH3(g)+CO2(g)+H2O(g) Calculate the total volume of gas produced at 25 C and 1.07atm by the complete decomposition of 11.86 …
  2. Chemistry

    Ammonium carbonate decomposes upon heating according to the following balanced equation: (NH4)2CO3(s)-->2 NH3(g)+CO2(g)+H2O(g) Calculate the total volume of gas produced at 25 C and 1.07atm by the complete decomposition of 11.86 …
  3. Chemistry

    Ammonium carbonate decomposes upon heating according to the following balanced equation: (NH4)2CO3(s)-->2 NH3(g)+CO2(g)+H2O(g) Calculate the total volume of gas produced at 25 C and 1.07atm by the complete decomposition of 11.86 …
  4. Chemistry

    A 22.5 gram sample of ammonium carbonate contains ?
  5. chemistry

    What mass of calcium carbonate is precipitated out when 2.20 g of ammonium carbonate is added to 25.7 mL of a 4.00 M solution of calcium nitrate?
  6. Chemistry

    Ammonium carbonate decomposes upon heating according to the following balanced equation: (NH4)2CO3(s)→2NH3(g)+CO2(g)+H2O(g) Calculate the total volume of gas produced at 24.0∘C and 1.02atm by the complete decomposition …
  7. chemistry

    Calculate the amount concentration of the ammonium ion in 100.0 ml of a solution containing 14.4 g of ammonium carbonate.
  8. chemistry

    how many grams of silver carbonate will precipitate when excess ammonium carbonate soln is added to 41.0 mL of a .518 M silver nitrate solution?
  9. chemistry

    To create a 0.1 M carbonate buffer pH = 10.2. You choose to use a combination of HCO3- / CO32-. This buffer system has pKa = 9.9.   a) Calculate how much you need to weigh in each of the sodium salts, NaHCO3 and Na2CO3, to create …
  10. Chemistry

    Consider the following decomposition reaction of ammonium carbonate ((NH4)2CO3): (NH4)2CO3 (s)  2 NH3 (g) + CO2 (g) + H2O (g) In one experiment at 25.0°C, a sample of pure (NH4)2CO3 is placed in an evacuated 2.00 L vessel. At equilibrium, …

More Similar Questions