Why is HCl a stronger acid than H2SO4?
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Why is HCl a stronger acid than H2SO4?
HCl is a stronger acid than H2SO4 because a proton more easily separates from chloride ion than from hydrogen sulphate ion and this is reflected in their dissociation constants. The lower the pKa value of an acid the stronger it is. The pKa values of HCl and H2SO4 are -6 and -3 , respectively.
Which is a stronger acid dil HCl or conc H2SO4?
HCl acid ionises completely to H+ and Cl- ions (that is, about 100 out of 100 molecules donate their hydrogen ion). Hence, dilute HCl acid is stronger than highly concentrated carbonic acid.
Is HCl the strongest acid?
Because HCl is a strong acid, its conjugate base (Cl−) is extremely weak….Strong and Weak Acids and Acid Ionization Constant.
| Acid | Conjugate Base |
|---|---|
| HCl (hydrochloric acid) (strongest) | Cl− (chloride ion) (weakest) |
| H2SO4 (sulfuric acid) | HSO4− (hydrogen sulfate ion) |
Is Dil HCl stronger than conc HCl?
HCl acid ionises completely to H+ and Cl- ions (that is, about 100 out of 100 molecules donate their hydrogen ion). Hence, dilute HCl acid is stronger than highly concentrated acetic acid.
Which is strong dilute HCl or concentrated HCl?
Dilute HCl has higher pH value than concentrated HCl because it has less number of H+ ions. If an acid in one of its solutions has higher pH value, then it means that the acid is in diluted form.
What happens when HCl reacts with H2SO4?
Generally, when we add dilute hydrochloric acid to a strong (or concentrated) solution of sulfuric acid, a dehydration reaction takes place. In this reaction, the sulfuric acid strips the hydrochloric acid of its water, effectively converting it to hydrochloric acid gas.
Why HCl is least volatile?
Despite its electronegativity, the size of a chlorine atom is larger and the electron density is low. Hence, HCl does not have hydrogen bonding. Due to which, the boiling point of HF is higher and the volatility is less.
What is the highest concentration of HCl?
The limit of concentration of HCl is that pure HCl is a gas and the solubility of this gas is limited. Max concentration at standard air pressure is approximately 38\%. It is as with carbonated softdrinks. At higher pressure more gas can be dissolved than at lower pressure. If the concentration of HCl would be higher than 38\%,…
What is the reaction between NaOH and H2SO4?
Stoichiometry. Enter a mass or volume in one of the boxes below.
What is the formula for H2SO4?
The formula of the chemical compound Sulfuric acid is H₂SO₄
What is the molarity of 37\% HCl?
The reagent used in laboratories is HCl dissolved in water, which is why you’ll find in the label that it is around 37\% HCl in weight. The other 63\% is water. Considering 37\% as the maximum solubility of HCl, you can calculate the molarity using the solution density (1.2 g/mL) and HCl’s molar mass (36.46 g/mol).