Question

EXPONENTIAL & LOGORITHMIC FUNCTION

On July 9, 1998 the hydrogen ion concentration of the water in the Roanoke River at Janesville, North Carolina, was 1.995 x10^{-7} mo1/L (Water Resources for North Carolina, wwwnc.usgs.gov). What was the pH of the water at that time?

(Hing: Use the PH formula).

Step 1

To determine the pH of the solution , using logarithmic function

Step 2

The required pH is simply obtained by substituting the values in the formula connecting pH and the ion concentration. Here,...

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