Ka correlation to strength of an acid

[Aliya Jain 2B]

what is the relationship between the Ka and how strong an acid is?

[Brittney Hun 2C]

If the Ka is large it means it's a stronger acid. The greater the number the more it dissociates so more H+ will be in solution.

[Justin Seok 2A]

The Ka is basically the measure of how much something dissociates, so if you have a larger Ka then you know more H3O+ will form, giving you a stronger acid. On the other hand, a lower pKa is a sign of a stronger acid.

[Andrew Liang 1I]

small pKb = more basic
small pKa = more acidic
large Kb = more basic
large Ka = more acidic

[Asia Yamada 2B]

The reason why a larger Ka value correlates to a stronger acid is because Ka=[products]/[reactants] and the larger the Ka value is, the more products there are. When there are a lot of products, that means that a lot of the acid (reactant) dissociated which means there will be more H+ ions, making the solution more acidic.

[derickngo3d]

The higher the Ka-value, the stronger the acid.

[Jason Knight - 1F]

Strong acids have a large Ka value, which in-return leaves a lower pKa value. The same applies to strong bases, as they have a larger Kb and a lower pKb value.

[Arya Adibi 1K]

If there is a higher Ka value, that means that there is a higher concentration of products (H30+), and will have a lower pKa or pH, so it is a stronger acid.

[Kathy_Li_1H]

Hi! The higher the Ka value, the stronger the acid. However, the lower the pKa value, the stronger the acid. Both mean the same but one of them just includes logarithms.

[reyvalui_3g]

A larger value of Ka means that the acid is stronger.

[Carly_Lipschitz_3H]

A larger Ka means the acid is stronger. A smaller Ka means the acid is weaker.

[Sophia Wendin 3L]

The reason why a larger Ka value correlates to a stronger acid is because Ka=[products]/[reactants] and the larger the Ka value is, the more products there are. When there are a lot of products, that means that a lot of the acid (reactant) dissociated which means there will be more H+ ions, making the solution more acidic.

Thank you! Knowing the reason why helps me remember things better.

[Gigi Elizarraras 2C]

The larger the Ka the stronger the acid, and conversely, the larger the pKa the weaker the acid:)

[Emerald Wong 1B]

A larger Ka is a stronger acid, since there are more products/ the acid has dissociated a lot more.

[Maya Johnson 2a]

A larger Ka is a stronger acid.

[Felicia Wei 1B]

Weak acids have small Ka while strong acids will have larger Ka.

[Jasmine Yi 1G]

Stronger acids dissociate completely, so larger Ka probably correlates to stronger acids.

[Chelsea_Guzman_3C]

The acid is stronger when Ka is greater.

[Morgan Gee 3B]

Ka is calculated with the general equation, Ka = [A-][H3O+]/[HA]. [] represents concentration, A- is the conjugate base of an acid, H3O+ is a hydronium ion, and HA is the acid. As an acid dissociates and gives off an H+ to an H2O, the concentration of A- and H3O+ both increase. We determine how strong an acid is by how much H+ it gives off. Another way of phrasing that would be how acidic a solution becomes after adding the acid. Based on these facts, as Ka increases, H3O+ increases, indicating a stronger acid. High Ka values correlate to strong acids, while low Ka values correlate to weak acids. Something similar can be said for Kb and bases.

[Charlotte Adams 1A]

Stronger acid= higher Ka, lower pKa
weaker acid=lower Ka, higher pKa

[Justin Lin 1B]

Having a larger Ka value means that it is a stronger acid, relative to weak acids when comparing their strengths.

[Eliana Carney 3E]

Hey Aliya!
Basically, the Ka value is a measurement of how much an acid dissociates in solution. Therefore, the higher the Ka value, the more the acid has dissociated, the higher the concentration of hydronium ions in solution, and the stronger the acid. Similarly, the lower the Ka value the weaker the acid because the concentration of hydronium ions in solution is lower. Hope this helps!

[t_rasul2I]

stronger acids have a higher acidity dissociation constant (ka) which is because the ratio of products over ratio are higher when the acid is able to disociate more. This is why strong acids don't have a ka. They have an exponentially larger number of products to reactants and so it looks like the [products]/0.

[Tatyana Bonnet 2H]

A larger Ka means more acidic because the larger number comes from a greater amount of products than reactants indicating that it is dissociating more completely and the forward reaction is favored. Likewise the smaller the pKa the more acidic it is because you are taking the -log of the Ka.

[Presley Gao 2C]

The relationship between the Ka and how strong an acid is the larger the Ka the stronger the acid.

[Gustavo_Chavez_1K]

The larger the Ka value, the stronger the acid. The larger the Kb value, the stronger the base.

[Jared Limqueco 3E]

A strong acid would have a high dissociation value, Ka

[Isabella Cortes 2H]

a larger Ka value means that an acid is stronger

[Kiana Tashakori 1D]

The larger the Ka, the stronger the acid. This is because the larger the Ka, the more it dissociates and the more H3O+ will form. A larger Ka will result in a lower pKa though so lower pKa=stronger acid and larger Ka= stronger acid.

[Biona Hui 1G]

the greater the Ka value, the stronger the acid. If theres more H3O+ that means theres a greater dissociation and its a stronger acid.

[DavidTabib 3H]

The larger the Ka, the stronger the acid.