Nitrogen dioxide is a red-brown gas responsible for the brown color of smog. a container of nitrogen dioxide that is at low pressure and at room temperature has a volume of 3.41l. after more nitrogen dioxide is added, the container holds 2.28×10−2mol of nitrogen dioxide and the volume of the container is 5.11l, still at the same pressure and temperature. how many moles of nitrogen dioxide were in the container initially? give your answer in three significant figures.

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.