When 25 g of diethyl ether (C4H10O) is converted to vapor at its boiling point, about how much heat is absorbed? (heat of vaporization, ΔHvap = 15.7 kJ/mol)

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.