"how many fold difference is the hydrogen ion concentration if the ph is 6.7 is increased to 8.7"

pH of the solution is calculated using the following formula:

Here, is concentration of hydrogen ion.

Initial value of pH is 6.7, calculate concentration of hydrogen ion from this as follows:

Putting the value,

Thus, initial concentration of hydrogen ion is .

Now, final pH value is 8.7, calculate concentration of hydrogen ion as follows:

Thus, final concentration of hydrogen ion is .

The ratio of final to initial value will be:

Thus, if pH increases from 6.7 to 8.7, concentration of hydrogen ion becomes of the initial value.

lol for the pointsss

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph