Calculate the (H+), and indicate whether it is an acid, base, or neutral for a
solution with a concentration of [OH-] = 8.8 x 10^-9 M.*

As the pH value is less than 7, (in this case 5,94) it corresponds to an acidic substance.

Explanation:

The pH indicates the acidity or basicity of a substance. pH values between 0 and less than 7 indicate acidic solutions, 7 neutral and higher than 7 to 14 basic. It is calculated as: pH = -log (H 30+)

First we calculate the concentration of H 30+:

Both pH and pOH have a relationship to belonging to the same aqueous solution: the expression of the Kwater (ionic product of the water Kw) is used:

(H3O  +) x (OH  -) = 1x10 ^ -14

(H3O  +) x (8.8 x 10^-9)= 1x10 ^ -14

(H30+)= 1x10 ^ -14/(8.8 x 10^-9)

(H30+)= 1,14 x 10^-6 M

pH= -log (H30+)

pH= -log (1,14 x 10^-6)

pH=5,94  As the pH value is less than 7, it corresponds to an acidic substance.

what is the volume occupied by 40 grams of argon gas (ar) at standard conditions? what volume, in liters, is occupied by 1.5 x 1023 

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'