The equation for the pH of a substance is pH = -log[1], where H+ is the concentration of hydrogen
ions. What is the approximate pH of a solution if the concentration of hydrogen ions is 5.0 x 10-4 moles
per liter?
2.7
3.0
3.3
3.6

what "following statement"?

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

you have to put the graph on here with the question

step-by-step explanation: