pH vs. pKa

[marika roberts 3l]

what are the differences between pH and pKa

[Minh-Anh Pham 1B]

pH is the -log of the concentration of H+ molecules, pKa is the -log of the acid dissociation constant Ka.

[Andrew Greenberg 2D]

[H] and pH have the same relationship as Ka and pKa. In math/science, the p refers to the -log.

[Daniel Lee 2J]

In terms of what information you can gather from each of these values, pH is a measure of acidity, while pka is a measure of strength. For instance, the lower the pH, the more acidic it is. The lower the pka, the stronger it is.

[Emily Lee 2H]

pH and pKa are similar because they both tell you how stroing your acid is. The lower the pH and the smaller the pKa, the stronger the acid.

[kirsten clemente 1E]

Hello,
So pKa is the negative value of the logarithmic of Ka (-log(Ka))
and pH is the logarithmic value of the inverse of H+ concentration

[Caitlin_Chheda_1K]

Hi! I believe that pH is found by taking the -log of the H+ concentration, and pKa is found by taking the -log of the Ka value of the solution.

[Sarah Khan]

The pKa tells us if an acid is strong or weak. However, the pH tells us if a system is acidic or alkaline. If the pKa of an acid is high, it is a weak acid, and if the pKa of an acid is low, it is a strong acid.

[Sarah Oung 1E]

pKa serves as an indicator of whether an acid is weak or strong and it is taken from the -logKa. pH shows whether the solution is acidic or alkaline and it is taken from the -logH+ or -logH3O+ concentration.

[Abby Freeman 1C]

pH - measure of acidity/basicity, lower pH = more acidic/ stronger acid and higher pH = more basic/ weaker acid

pOH - also measures acidity, higher pOH = more acidic/ stronger acid and lower pOH = more basic/ weaker acid

pKa - measures acid dissociation, higher Ka and lower pKa = stronger acid

pKb - measures base strength, higher Kb and lower pKb = stronger base

[Mariet Garcia 1E]

pKa tells us how weak or strong an acid is
pH tells us how much hydrogen is in something and how active these ions are

[Valerie M Dis 2E]

pH is a measure of acidity, and pKa tells you how strong your acid is.

[205756817]

pH indicates the value of the power of hydrogen ions. It is usually measured for strong aids that dissociate completely. While pKa is the measure for an acids strength, it is usually calculated for weaker acids which do not dissociate completely

[Avani Pammidimukkala 2F]

The pH of a solution determines if the solution is acidic or basic, while the pKa of a solution determines if an acid is strong or weak. A lower pH (a stronger acid) tends to have a lower pKa value as it has a higher ionization, while a higher pH (a weaker acid) tends to have a higher pKa value as it has a lower ionization.