What is the ph of an aqueous solution with a hydrogen ion concentration of [h+]=9.3×10−5 m? b. what is the hydroxide ion concentration, [oh−] , in an aqueous solution with a hydrogen ion concentration of [h+]=9.3×10−5 m?

Okey so [H+] = 9.3×10¯5 is given. From given data we can derive the following

Equation for pH is;

pH = - log [H+]

= - log (9.3×10¯5)

= - log 9.3 + log 10¯5

= - (0.9684 + (-5)

= - (-4.0316)

= 4.0316

The pH = 4.0316

(b.)

By using the equation ;

14 = pH + pOH

pOH = 14 - 4.0316 (calculated from above)

pOH = 9.9684

Since pOH = 9.9684

pOH = - log [OH-]

9.9684 = - log [OH-]

[OH-] = antilog (-9.9684)

[OH-] = 1.075 ×10¯(10)

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.

i think that the answer is c