Answer:
D
Explanation:
Since [pKa = - log Ka]....hence..,the larger the Ka value,the stronger the acid is..so this means that the pKa is vice versa
Saying that the smaller the pKa value..the stronger the acid is.
Answer:
Neutral atoms have the same number of electrons and protons. Atoms of an element that contain different numbers of neutrons are called isotopes. Each isotope of a given element has the same atomic number but a different mass number (A), which is the sum of the numbers of protons and neutrons.
Explanation:
The answer for this is “D” I do believe
Answer:
NH₄⁺(aq) + H₂O(l) ⇄ H₃O⁺(aq) + NH₃(aq)
The solution is acid.
Explanation:
Ammonium bromide → NH₄Br
This is a salt that can dissociates like this:
NH₄Br(aq) → NH₄⁺(aq) + Br⁻(aq)
NH₄⁺ cation comes from a weak base, the ammonia. So the cation is the conjugate strong acid.
Br⁻ anion comes from a strong acid (HBr), so the anion is the conjugate weak base and in water, it does not make hydrolisis. It does not react.
So the NH₄⁺ is the one that can react to water, realeasing one proton as this equation shows:
NH₄⁺(aq) + H₂O(l) ⇄ H₃O⁺(aq) + NH₃(aq)
As we give hyrdronium in the medium, the solution is acid.
