How can I calculate pH of #NaOH#?

Answer 1
Assuming that you either start with, or can determine a molar concentration for #NaOH#, the easiest way to get to #pH# is by calculating #pOH#.
#NaOH# is a strong base, which means it dissociates completely
#NaOH(aq) + H_2O(aq) <=> Na^+ (aq) + OH^(-) (aq)#
The concentrations of #Na^+# and #OH^-# are equal to the intial concentration of #NaOH#, let's say #X#. You can now determine #pOH# by using
#pOH = -log(X)#, which then gets you to
#pH = 14 - pOH#
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Answer 2

To calculate the pH of a solution of NaOH, you need to use the equation:

pH = -log[OH-]

Where [OH-] is the concentration of hydroxide ions in the NaOH solution.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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