Answer:
The correct answer is - D) 1000x.
Step-by-step explanation:
pH is a logarithmic scale, 1 reading change leads to the results in ten-fold in the H+ concentration in acidity/basicity. The more H + ions found in solution, the more acidic the substance is as acids donate H + ions.
You can calculate the concentration of H + from the pH and the equation
p H = − log [ H + ]
arrange again
[ H + ] = 10 − p H
So for a pH of 8, we get [ H + ] = 10 ^− 8
For a pH of 5, we get [ H + ] = 10^ − 5
10 ^−5 /10 ^− 8= 10 ^3
= 1000