Rate = 6.2 x 10-4 5-1 x [N2O5] = 6.2 x 10-4 5-1 x (0.70 M) = 4.3 x 10-4 M/s Calculate the half-life of the reaction.
Half-life =
S
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257 grams h2o i think

Answer:             1.0  × 10⁻⁵ msolution:                     as we know ph is given as,                                    ph  = -log [h⁺]and,                                    [h⁺]  =  10^-ph    (1)putting value of ph in eq. 1,                                    [h⁺]  =  10⁻⁵                                    [h⁺]  =  1.0  × 10⁻⁵ m

Nuclear will be the answer