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At a certain temperature this reaction follows second-order kinetics with a rate constant or 0.257M1 /s 1 : 2H3PO4(aq)P2O5(aq)+3H2O(aq) Suppose a vessel contains H3PO4 at

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At a certain temperature this reaction follows second-order kinetics with a rate constant or 0.257M1 /s 1 : 2H3PO4(aq)P2O5(aq)+3H2O(aq) Suppose a vessel contains H3PO4 at a concentration of 1.20M. Calculate the concentration of H3PO4 in the vessel 43.0 seconds later. You may assume no other reaction is important. Round your answer to 2 significant digits

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