Outline an extraction method to separate a 50:50 mixture of 3-nitroaniline and mathyl 2-chlorobenzoate from one another.

Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that