Quick Answer: Which Of The Following Is The Weaker Acid?

Which of the following acid is weakest acid?

From the given options, H2​S has the least Ka​ value equal to 1.


Hence it is the weakest acid..

What are 7 strong acids?

There are 7 strong acids: chloric acid, hydrobromic acid, hydrochloric acid, hydroiodic acid, nitric acid, perchloric acid, and sulfuric acid.

Is lemon juice a weak acid?

Lemons contain two acids- citric acid which is a weak acid and ascorbic acid which is generally known by the name vitamin C. Vinegar is acetic acid which itself is a member of weak acids family. … The problem with lemon juice is that with increment in time, lemon juice can deteriorate.

Is soda and acid?

All soda and energy drinks are acidic and can dissolve enamel on teeth. Acidity leads to overweight, stressed, fatigue, joint & muscle pains, bad skin, reflux, bad digestion, pre mature aging inflammation, heart disease, cancer & so on. Osteoporosis and bone softening due to Phosphoric Acid.

What pH is weak acid?

about 5 toWeak Acids A weak acid, on the other hand, fails to ionize completely. It releases fairly low concentrations of hydrogen ions in an aqueous solution, resulting in a pH range of about 5 to just below 7.

What are the 5 strong bases?

Strong Arrhenius BasesPotassium hydroxide (KOH)Sodium hydroxide (NaOH)Barium hydroxide (Ba(OH)2)Caesium hydroxide (CsOH)Sodium hydroxide (NaOH)Strontium hydroxide (Sr(OH)2)Calcium hydroxide (Ca(OH)2)Lithium hydroxide (LiOH)More items…

What is pH of weak base?

The procedure for calculating the pH of a solution of a weak base is similar to that of the weak acid in the sample problem. However, the variable x will represent the concentration of the hydroxide ion. The pH is found by taking the negative logarithm to get the pOH, followed by subtracting from 14 to get the pH.

Is lemon juice acidic or base?

Lemon juice in its natural state is acidic with a pH of about 2, but once metabolized it actually becomes alkaline with a pH well above 7.

Is HClO4 a strong acid?

The 7 common strong acids are: HCl, HBr, HI, HNO3, HClO3, HClO4 and H2SO4 (1st proton only).

What is the pH of a weak acid and strong base?

7.00POINT OF EMPHASIS : The equivalence point for a weak acid-strong base titration has a pH > 7.00. For a strong acid-weak base or weak acid-strong base titration, the pH will change rapidly at the very beginning and then have a gradual slope until near the equivalence point.

Which is the weak acid?

Examples of weak acids include acetic acid (CH3COOH), which is found in vinegar, and oxalic acid (H2C2O4), which is found in some vegetables. VinegarsAll vinegars contain acetic acid, a common weak acid.

What’s more acidic vinegar or lemon?

The most significant difference between lemon juice and vinegar is the type of acid. Lemon juice is on average five to six percent citric acid. … In terms of PH, vinegar is slightly more acidic than lemon juice.

Which is the most powerful acid?

Fluoroantimonic acidFluoroantimonic acid is the strongest superacid based on the measured value of its Hammett acidity function (H0), which has been determined for different ratios of HF:SbF5.

Which is not a weak acid?

The strong acids are hydrochloric acid, nitric acid, sulfuric acid, hydrobromic acid, hydroiodic acid, perchloric acid, and chloric acid. The only weak acid formed by the reaction between hydrogen and a halogen is hydrofluoric acid (HF).

What is the pH of a base?

pH is a measure of how acidic/basic water is. The range goes from 0 – 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.

What are the weak acids and bases?

Weak Acids & BasesCommon Weak AcidsCommon Weak BasesTrichloroaceticCCl3COOHpyridineHydrofluoricHFammonium hydroxideHydrocyanicHCNwaterHydrogen sulfideH2SHS− ion5 more rows•Aug 15, 2020

What are 2 weak acids?

Examples of Weak AcidsFormic acid (chemical formula: HCOOH)Acetic acid (chemical formula: CH3COOH)Benzoic acid (chemical formula: C6H5COOH)Oxalic acid (chemical formula: C2H2O4)Hydrofluoric acid (chemical formula: HF)Nitrous acid (chemical formula: HNO2)Sulfurous acid (chemical formula: H2SO3)Phosphoric acid (chemical formula: H3PO4)

How do you tell if an acid is strong or weak?

Any acid that dissociates 100% into ions is called a strong acid. If it does not dissociate 100%, it is a weak acid.

Is HCl a weak acid?

HCl is a strong acid because it dissociates almost completely. By contrast, a weak acid like acetic acid (CH3COOH) does not dissociate well in water – many H+ ions remain bound-up within the molecule.

What are 3 weak bases?

List 3 examples of weak basesAmmonia.Pyridine.Methylamine.

Is water a weak acid?

Pure water is both a weak acid and a weak base. By itself, water forms only a very small number of the H3O+ and OH- ions that characterize aqueous solutions of stronger acids and bases.

What pH is a weak alkali?

Ammonia solution with a pH of 11.1 is a weak alkali and that’s why it shows much lower conductivity of 0.50 US/cm. a solution with a pH of 10 is a strong alkali.