Is Koh A Weak Base

[NaOH – Caustic soda, KOH – Caustic potash, HCl-Hydrochloric acid, H2SO4- Sulfuric acid]

All answers are in the periodic table.

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Sodium Hydroxide (NaOH) and Potassium Hydroxide (KOH) are well-nigh interchangeable. They are the most chemically like to hydroxides. They are both a white, strongly alkaline, corrosive solid or pulverisation. Sodium Hydroxide is more commonly known equally lye or caustic soda where Potassium Hydroxide is known every bit potash.

NaOH vs KOH which is stronger?

Both KOH and NaOH are fully ionic stiff bases.

At equivalent concentrations, there is no deviation in base strength when they exist as a dilute solution. In either case, they dissociate in water completely and they both produce the same base, OH-. OH- is OH-. Consequently, the pH of, for instance, a 0.ane M solution of NaOH should be the same equally a 0.1 Chiliad solution of KOH.

pH = 14- pOH

pOH = -log [OH-]

pOH = -log (0.i) = ane

pH = 14–ane = 13

NaOH vs KOH: which is stronger equally commercially bachelor solid or 45-fifty% liquid?

A stiff base is a base that is completely dissociated in an aqueous solution like NaOH and KOH. In contrast, a weak base only partially dissociates into its ions in water. Ammonia is a skillful example of a weak base of operations.

The question is which is stronger? The answer is one that loses –OH ion quicker in water. In the periodic table, Na and K both belong to group i. Na atomic number is eleven while K's diminutive number is 19. K is a bigger cantlet than Na. In a group in the periodic table, an increase in the size of elements outweighs increasing nuclear accuse. The electron configuration of Na is 2,8,1, there is a total of eleven electrons spread over iii free energy subshells. The electron configuration of Chiliad is 2,8,viii,1, in that location is a total of 19 electrons spread over 4 energy subshells. While both have one electron in the outer valency crush. K has i full extra free energy subshell because of its college atomic number eleven [Na] vs 19[K]. A larger number of inner electrons in Thousand produces larger electron to electron repulsion [aforementioned charge] to outer valency electron making it less attracted to protons in the nucleus and thus outer valency electron of K gets pushed out more easily and gets ejected out. This makes K ionizes more easily than Na. The ionization energy of Na is 495.viii kj/mol vs K has 418.8 kj/mol. Na needs more free energy to ionize. Therefore, K is more than electro +ve /reactive than Na. This makes KOH losing OH- ion more hands than Na and a stronger base.

HCl vs H2SO4: Which is stronger? 35% HCl or 98% H2SO4?

Both HCl and H2SO4 are strong acids

The forcefulness of an acid every bit a molecule is its ability to lose a proton, H+ ion in water. In HCl, the bond dissociation enthalpy is 427 kJ/mol whereas in H2SO4, where the O - H bail breaks, information technology is 467 kJ/mol. Lower bond dissociation enthalpy of the H - Cl bond makes it lose proton more hands than H2SO4. That makes HCl stronger than H2SO4 every bit a molecule.

35% HCl vs 98% H2SO4: Which is more harmful to human being safety

When Homo safety with these acids arises, it does not matter which has lower or higher bail strength.

Commercially H2SO4 is 98% acrid and HCl is 35% acid. H2SO4 has only but 2% water. H2SO4 molecule has 2 O-H bonds. Hydrogen attached to oxygen makes it an obvious candidate for hydrogen bonding. H2SO4 is hygroscopic. H2SO4 has a strong affinity for water. If y'all put sulfuric acid on your skin, the first matter it volition do is dehydrate yous. This has the effect of carbonizing your skin giving you third-degree burns. And so, the water taken from your skin allows the H2SO4 to dissociate and the full-bodied acid burns your pare.

In short, though HCl has an H atom, information technology does not form a hydrogen bond. Also, commercial HCl at 35% concentration has plenty of water.

From a Human rubber point, H2SO4 is far more unsafe than HCl.

Credit: Pub Chem for the periodic table image