An unknown solvent freezes at 36.3°C. When 2.02 g of urea (a non-electrolyte, molar mass = 60.06 g/mol) are dissolved in 25.0 g of the solvent, the solution formed freezes at 34.7°C. What is the freezing point constant for the unknown solvent?

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?