Chemistry, 02.04.2020 02:55 Downfall

Consider this reaction:
2H3PO4(aq) –> P2O5(aq) + 3H2O(aq)
At a certain temperature it obeys this rate law.
rate = (16.9 M^-1 .S^-1)[H3PO4]^2
Suppose a vessel contains H3PO4 at a concentration of 0.770 M. Calculate how long it takes for the concentration of H3PO4 to decrease by
90.0%. You may assume no other reaction is important.
Round your answer to 2 significant digits.

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Consider this reaction:
2H3PO4(aq) –> P2O5(aq) + 3H2O(aq)
At a certain temperature it...

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