Try Again Your answer is wrong. In addition to checking your math, cheek that you used the right data and DiD NOT round any intermediate calculations. Phosphoric acid, a mild acid used among other things as a rust inhibitor, food additive, and etching agent for cavity repair by dentists, can be made from elemental phosphorus in a two step process. In the first step, phosphorus and oxygen react to form diphosphorus pentoxide: P4(x)+5O2(g)2P2O5(g) In the second step, diphosphorus pentoxide and water react to form phosphoric acid (H3PO4) : P2O5(g)+3H2O(l)2H3PO4(l) Suppose the yield of the first step is 80.% and the yield of the second step is 96.%. Caiculate the mass of phosphorus required to make 7.0 kg of phosphoric acid. Be sure your answer has a unit symbol, if needed, and is rounded to 2 significant digits