Explain the relationship between pH, POH, hydronium concentration and hydroxide concentration and be prepared to complete a boxed equation

Question

H+    ________x_______

OH-   1x10^-11_________

pH    3________________

POH  _______y__________

Answer 1

Here are the relationships between pH, pOH, hydronium (H₃O⁺) concentration and hydroxide (OH^-) concentration.

pH = -log [H₃O⁺]

pOH = -log [OH-]

pH + pOH = 14

pH = 14 - pOH

pOH = 14 - pH

[H₃O⁺][OH-] = 1x10^-14

[H₃O⁺] = 1x10^-14 / [OH-]

[OH-] = 1x10^-14 / [H₃O⁺]

[H₃O⁺] = 1x10^-pH

[OH-] = 1x10^-pOH

The "boxed equation" is simply a diagram in the shape of a box that shows these various relationships. It's too difficult to draw that on this platform.

As far as the rest of your question, I have no idea what you are asking when you write....

H⁺ ______x______ or OH- 1x10^-11________

What are we supposed to put in the blanks?

UPDATE:

If OH- = 1x10-11, what is [H⁺]? Maybe this is what they are asking for x.

[H⁺] = 1x10^-14 / 1x10^-11 = 1x10^-3 M = X

If pH = 3, what is pOH

pH + pOH = 14

pOH = 14 - 3

pOH = 11 = Y