What is the product of 2.3 x 1014 and 5.4 x 10-3? A. 1.4 x 1011
B. 2.8 x 1016
C. 4.3 x 1010
D. 1.2 x 1012

The most plausible answer is b, duration. the given amount of time is considered how long it last for.

Bis the

Is there a picture or answer choices?

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