A commercial ammonia called 0.68 ammonia has a density of 0.68 g/cm^3 and contains approximately 34%of ammonia by mass.
a) Calaculate the mass of ammonia present in 1 dm^3 of the solution of this commercial ammonia
b) Calculate the molarity of this solution
c)Calculate the volume of distilled water added if the solution has to be diluted to 1 mol dm^-3
Chemistry Question
2008-05-10 1:12 am
回答 (1)
2008-05-10 3:25 am
✔ 最佳答案
a) the mass of ammonia=1000x0.68x34%=231.2gb) the molarity of the solution=231.2/17=13.6M
c) the volume of solution of 1M solution=13.6dm3
the volume of distilled water added = 13.6-1=12.6dm3
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