The indicator dinitrophenol is an acid with a Ka of 1.1x10–4. In a 1.0x10–4-M solution, it is colorless in acid and yellow in base

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action