The difference in temperature between the boiling point of a solution and the boiling point of the pure solvent Concentration A measurement of the amount of solute that's dissolved in a given quantity of solvent; usually expressed as mol / L
If you get banned from Xbox Live, you more than likely deserved it barring the occasional name misunderstanding or misinterpretation that usually get cleared up quickly. Punishment can range from suspensions of 24 hours up to two weeks, on up to full permanent bans.
For the case of learning another language of that language group, if moving to a country where the new language is spoken, and one doesn't hang out with people who speak the easier language for him, the average time to get quite fluent in the other language seems to be about 3 months.