When an aqueous solution at room temperature is analyzed, the [h+] is found to be 2.0 × 10−3 m. what is the [oh−]?

a. 5.0 × 10−12 m
b. 2.0 × 10−11 m
c. 4.0 × 10−6 m
d. 5.0 × 10−11 m

Answer : The correct option is, (A)

Explanation:

First we have to calculate the pH.

Now we have to calculate the pOH.

Now we have to calculate the concentration.

Therefore, the concentration is,

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.