What are the 7 strong bases?

Some common strong Arrhenius bases include:

Potassium hydroxide (KOH)

Sodium hydroxide (NaOH)

Barium hydroxide (Ba(OH)2)

Caesium hydroxide (CsOH)

Strontium hydroxide (Sr(OH)2)

Calcium hydroxide (Ca(OH)2)

Lithium hydroxide (LiOH)

Rubidium hydroxide (RbOH)

Comparing the other two to ammonia, you will see that methylamine is a stronger base, whereas phenylamine is very much weaker. Methylamine is typical of aliphatic primary amines – where the -NH2 group is attached to a carbon chain. All aliphatic primary amines are stronger bases than ammonia.

A strong base is something like sodium hydroxide or potassium hydroxide which is fully ionic. You can think of the compound as being 100% split up into metal ions and hydroxide ions in solution. Some strong bases like calcium hydroxide aren’t very soluble in water.

Weak Acids & BasesCommon Weak AcidsCommon Weak BasesFormic(ce{HCOOH})ammoniaAcetic(ce{CH3COOH})trimethyl ammoniaTrichloroacetic(ce{CCl3COOH })pyridineHydrofluoric(ce{HF })ammonium hydroxide

In chemistry, a weak base is a base that does not ionize fully in an aqueous solution. As Brønsted–Lowry bases are proton acceptors, a weak base may also be defined as a chemical base in which protonation is incomplete. This results in a relatively low pH compared to strong bases.

The ions from KCl derive from a strong acid (HCl) and a strong base (KOH). Therefore, neither ion will affect the acidity of the solution, so KCl is a neutral salt. Although the K + ion derives from a strong base (KOH), the NO 2 − ion derives from a weak acid (HNO 2).

Table of Strong BasesNameFormulaIonizationsodium hydroxideNaOHNa+(aq) + OH–(aq)potassium hydroxideKOHK+(aq) + OH–(aq)lithium hydroxideLiOHLi+(aq) + OH–(aq)rubidium hydroxideRbOHRb+(aq) + OH–(aq)

6 required strong acids.

H2SO4. Sulfuric Acid.

HCl. Hydrochloric Acid.

HBr. Hydrobromic Acid.

HI. Hydroiodic Acid.

HNO3. Nitric Acid.

HClO4. Perchloric Acid.

Hydroxides of all alkali metals are strong base but LiOH is least basic because the dissociation of LiOH is minimum in water.As LiOH is having maxmium covalent character because of Fajans’ Rule.

Acid solutions contain hydrogen ions. The higher the concentration of hydrogen ions, the lower the pH. Hydrochloric acid is a strong acid and ethanoic acid is a weak acid. Strong acids are fully ionised but weak acids are only partly ionised in solution.

According to the Arrhenius definition of a base, a base is a compound that breaks apart to make hydroxide ions (OH-) in solution. Bases have high pH values that are greater than seven but less than or equal to 14. Bases feel slippery and taste soapy. A strong base is a base that breaks apart 100% in solution.

Most acids are weak acids. A weak acid is an acid that dissociates incompletely, releasing only some of its hydrogen atoms into the solution. Thus, it is less capable than a strong acid at donating protons. These acids have higher pKa than strong acids, which release all of their hydrogen atoms when dissolved in water.

NH4+ has a pKa of 9.25 while NH3 has a pKb of 4.75. Thus, NH4+ is weakly acidic while NH3 is quite a strong base in comparison. But, NH4+ isn’t the weakest acid and NH3 isn’t the strongest base in absolute terms (which mean 100% protonation or depronotation in solution, if we use Lowry-Bronsted theory).

6 Strong Acids and 6 Strong Bases

Hydrochloric Acid. HCl (Strong Acid)

Hydrobromic Acid. HBr (Strong Acid)

Hydroiodic Acid. HI (Strong Acid)

Nitric Acid. HNO3 (Strong Acid)

Perchloric Acid. HClO4 (Strong Acid)

Sulfuric Acid. H2SO4 (Strong Acid)

Lithium Hydroxide. LiOH (Strong Base)

Sodium Hydroxide. NaOH (Strong Base)

The world’s strongest acid, at least a million times more potent than concentrated sulphuric acid, has been made in a lab in California. Perhaps confusingly, it is also one of the least corrosive. The compound, called a carborane acid, is the first ‘superacid’ that can be stored in a bottle, say its creators.

Because Mg(OH) 2 is listed in Table 12.2 “Strong Acids and Bases”, it is a strong base. The nitrogen in C 5H 5N would act as a proton acceptor and therefore can be considered a base, but because it does not contain an OH compound, it cannot be considered a strong base; it is a weak base.

Salt of weak acid and strong base: CH3COONa is a salt of weak acid CH3COOH and strong base NaOH. When it is dissolved in water it dissociates completely. ions of water get trapped and the pH of solution increases. Salt of weak acid and weak base: CH3COONH4 is a salt of weak acid CH3COOH and weak base NH4OH.

While phosphoric acid is quite acidic, it is evident that it is, indeed, a weak acid because of the lack of full dissociation in water; a 1 M solution of strong acid would be around 0 (0 for monoprotic species, possibly less for diprotic due to an additional hydrogen ion).

Sodium carbonate is also used as a relatively strong base in various settings. It acts as an alkali because when dissolved in water, it dissociates into the weak acid: carbonic acid and the strong alkali: sodium hydroxide.

Weak acids and bases are only partially ionized in their solutions, whereas strong acids and bases are completely ionized when dissolve in water. The ionization of weak acids and bases is a chemical equilibrium phenomenon.