Common questions 

What is H2SO3 in chemistry?

Joe Ford

What is H2SO3 in chemistry?

Sulfurous acid (also Sulfuric(IV) acid, Sulphuric acid (UK), Sulphuric(IV) acid (UK)) is the chemical compound with the formula H2SO3.

Is H2SO3 a Diprotic acid?

Sulfurous acid (H2SO3 ) is a diprotic acid with Ka1=1.39×10−2 and Ka2=6.73×10−8 .

Is sodium hydroxide weak or strong?

Strong bases 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. Each mole of sodium hydroxide dissolves to give a mole of hydroxide ions in solution.

Can you now say what weak and strong bases are?

A strong acid or a strong base completely ionizes (dissociates) in a solution. In water, one mole of a strong acid HA dissolves yielding one mole of H+ (as hydronium ion H3O+) and one mole of the conjugate base, A−….

Weak acids Carbonic acid
H2CO3
Weak bases Diethylamine
(CH3CH2)2NH

What would be considered the weakest base number?

The pH of a weak base falls somewhere between 7 and 10. Like weak acids, weak bases do not undergo complete dissociation; instead, their ionization is a two-way reaction with a definite equilibrium point.

Do weak bases have a high pH?

Bases increase pH; weak bases have a less dramatic effect on pH. pOH is occasionally used as an alternative to pH to quantify the relative H+/hydroxide concentration in solution.

What is the difference between a weak base and a strong base?

A strong base is a base that ionises or dissociates almost 100% in water to form OH− ion. It dissociates in water to form sodium ion and hydroxide ion. A weak base is a base that ionises or dissociates only partially in water to form OH− ion. An example of it will be ammonia.

What is the difference between a weak and a strong acid?

Strong acids are those that are completely ionized in body fluids, and weak acids are those that are incompletely ionized in body fluids.

What is the difference between a concentrated acid and diluted acid?

A concentrated acid is an acid which is in either pure form or has a high concentration. A dilute acid is that in which the concentration of the water mixed in the acid is higher than the concentration of the acid itself.

What are examples of strong acids?

Examples of Strong Acids

  • Hydroiodic acid (HI): pKa = -9.3.
  • Hydrobromic acid (HBr): pKa = -8.7.
  • Perchloric acid (HClO4): pKa ≈ -8.
  • Hydrochloric acid (HCl): pKa = -6.3.
  • Sulfuric acid (H2SO4): pKa1 ≈ -3 (first dissociation only)
  • p-Toluenesulfonic acid: pKa = -2.8.
  • Nitric acid (HNO3): pKa ≈ -1.4.
  • Chloric acid (HClO3): pKa ≈ 1.0.