This is a question from my countrys chemistry olympiad which I can't figure out. I have the correct answer but there are no explanations on how to get them. The question goes like this:
"A flask, which is filled up with ammonia, is filled with water so that all the ammonia dissolves. What is the mass concentration (%) of the solution? What is the molar concentration of the solution?"
The correct answer is 0.076 for the mass concentration and 0.045 for the molar concentration. If there was a solubility curve or some data to work with, this would be easy but there is none. I am confused. How is it possible to know this?