goodieboy
06-04-2012, 05:06 AM
Do help me with this question, will +rep for you :) Interested in working really, not the answer, so full detailed working greatly appreciated!!
1.280g of a sample containing Ammonium Chloride was boiled with excess sodium hydroxide solution. The ammonia evolved was absorbed in 50.0cm^3 of 0.400mol/dm^3 sulphuric acid solution. The resulting solution was then made up to 250cm^3 with distilled water and 25.0 cm^3 of it required 28.50cm^3 of 0.100mol/dm^3 sodium hydroxide solution in titration. Calculate the percentage by mass of ammonium chloride in the sample.
Answer is supposed to be 14.8%, but let me know if you get any others. Thanks in advance!
1.280g of a sample containing Ammonium Chloride was boiled with excess sodium hydroxide solution. The ammonia evolved was absorbed in 50.0cm^3 of 0.400mol/dm^3 sulphuric acid solution. The resulting solution was then made up to 250cm^3 with distilled water and 25.0 cm^3 of it required 28.50cm^3 of 0.100mol/dm^3 sodium hydroxide solution in titration. Calculate the percentage by mass of ammonium chloride in the sample.
Answer is supposed to be 14.8%, but let me know if you get any others. Thanks in advance!