Question: For What Acid Is HS − The Conjugate Base?

Is NaOH a weak base?

Strong bases are characterized by the fact that they dissociate completely in aqueous solution.

In this case, sodium hydroxide, NaOH , is classified as a strong base because it dissociates completely in aqueous solution to form sodium cations, Na+ , and hydroxide anions, OH− ..

How do you conjugate acids and bases?

A conjugate acid contains one more H atom and one more + charge than the base that formed it. A conjugate base contains one less H atom and one more – charge than the acid that formed it. Let us take the example of bicarbonate ions reacting with water to create carbonic acid and hydronium ions.

What is the conjugate acid of HS -?

Table of acids and their conjugate basesAcidConjugate baseH2S Hydrosulfuric acidHS− Hydrogen sulfide ionH2PO − 4 Dihydrogen phosphate ionHPO 2− 4 Hydrogen phosphate ionNH + 4 Ammonium ionNH3 AmmoniaH2O Water (pH=7)OH− Hydroxide ion11 more rows

Is HS a weak acid?

Moderately Weak Base – Moderately Weak Conjugate Acid Pair A moderately weak Brønsted-Lowry base has only a slight tendency to accept a proton. Moderately weak Brønsted-Lowry bases include, NH3, CO32-, HS-, NO2- and CH3COO-. For example, ammonia, NH3, is a moderately weak base.

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. Being part of the list of strong acids doesn’t give any indication of how dangerous or damaging an acid is though.

Is ch3coo a conjugate acid or base?

CH3COOH is a weak acid and dissociates partially in solution (as indicated with reversible arrow) to form H+ and CH3COO- ions. Since this is a reversible process, CH3COO- can accept H+ to form back CH3COOH. Therefore the nature of CH3COO- is basic and we call CH3COO- the conjugate base of CH3COOH.

What is the conjugate base of HS -?

The conjugate base of HS- is S2-. HS- loses a proton (H+). Notice that the proton has a positive charge.

What is the conjugate base of Oh?

O2-the way to get a conjugate base is to remove one H+ ion from it. so removing an H+ from the OH- ion,we get O2-. hence O2- is the conjugate base of OH-.

Which acid has the weakest conjugate base?

Strong and Weak Acids and Acid Ionization ConstantAcidConjugate BaseHCl (hydrochloric acid) (strongest)Cl− (chloride ion) (weakest)H2SO4 (sulfuric acid)HSO4− (hydrogen sulfate ion)HNO3 (nitric acid)NO3− (nitrate ion)Weak Acids5 more rows•Jun 26, 2013

Which acid is the strongest?

carboraneThe World’s Strongest Acid The record-holder used to be fluorosulfuric acid (HFSO3), but the carborane superacids are hundreds of times stronger than fluorosulfuric acid and over a million times stronger than concentrated sulfuric acid.

What is the conjugate base of water?

Hydroxide ionHydroxide ion is the conjugate base of water. When water reacts with an acid, it is acting as a base: The conjugate acid of water is the hydronium ion, H3O+, an ion formed by the association of a hydrogen ion with a water molecule.

What is the conjugate base of H 3 PO 4?

Answer and Explanation: The conjugate base of H3 PO4 is H2 PO4 -1. The removal of one hydrogen ion gives the conjugate base a -1 charge.

Which acid has the strongest conjugate base?

hydrochloric acidIn general, the stronger the acid, the weaker its conjugate base. Likewise, the weaker the acid, the stronger its conjugate base….Strong and Weak Acids and Acid Ionization Constant.AcidConjugate BaseHCl (hydrochloric acid) (strongest)Cl− (chloride ion) (weakest)H2SO4 (sulfuric acid)HSO4− (hydrogen sulfate ion)7 more rows•Jun 26, 2013

Is HS an acid or base?

KaAcidBase1.1 * 10-7Hydrosulfuric acidHS-6.3 * 10-8Dihydrogen phosphate ionHPO4 2-6.2 * 10-8Hydrogen sulfite ionS2-2.9 * 10-8Hypochlorous acidClO-28 more rows

Why is a conjugate base of a strong acid weak?

A strong acid like HCl donates its proton so readily that there is essentially no tendency for the conjugate base Cl– to reaccept a proton. Consequently, Cl– is a very weak base. A strong base like the H– ion accepts a proton and holds it so firmly that there is no tendency for the conjugate acid H2 to donate a proton.

Can hs be a conjugate acid and base?

H2S and HS- are a conjugate acid-base pair. HS- is the conjugate base of the acid H2S.