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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(s) +50₂(g) 2 P₂O5 (g) In the second step, diphosphorus pentoxide and water react to form phosphoric acid (H₂PO P₂O5 (g) + 3H₂O(1) 2 H₂PO4 (1) Suppose the yield of the first step is 94.% and the yield of the second step is 69.%. Calculate the mass of phosphorus required to make 8.0 kg of phosphoric acid. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits. →

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(s) +50₂(g) 2 P₂O5 (g) In the second step, diphosphorus pentoxide and water react to form phosphoric acid (H₂PO P₂O5 (g) + 3H₂O(1) 2 H₂PO4 (1) Suppose the yield of the first step is 94.% and the yield of the second step is 69.%. Calculate the mass of phosphorus required to make 8.0 kg of phosphoric acid. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits. →

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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(s) + 50₂(g) 2 P₂O5 (g) In the second step, diphosphorus pentoxide and water react to form phosphoric acid (H₂PO4): P₂O₂(g) + 3H₂O(1) 2 H3PO4 (1) Suppose the yield of the first step is 94.% and the yield of the second step is 69.%. Calculate the mass of phosphorus required to make 8.0 kg of phosphoric acid. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.
Transcribed Image Text: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(s) + 50₂(g) 2 P₂O5 (g) In the second step, diphosphorus pentoxide and water react to form phosphoric acid (H₂PO4): P₂O₂(g) + 3H₂O(1) 2 H3PO4 (1) Suppose the yield of the first step is 94.% and the yield of the second step is 69.%. Calculate the mass of phosphorus required to make 8.0 kg of phosphoric acid. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.
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