Back to the full dot-point answer
QLDChemistryQuick questions
Unit 3: Equilibrium, acids and redox reactions
Quick questions on Bronsted-Lowry acids and bases (QCE Chemistry Unit 3)
7short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is amphiprotic species?Show answer
An amphiprotic species can either donate or accept a proton, depending on the partner.
What is conjugate strength relationship?Show answer
The conjugate of a strong acid is a very weak base (Cl- has essentially no proton-accepting tendency in water). The conjugate of a weak acid is a measurable base (CH3COO- accepts H+ to a small but real extent in water; CH3COO- solutions are basic).
What is strong acids and bases dissociate essentially completely?Show answer
The equilibrium lies overwhelmingly to the right; in QCE Chemistry we typically write a single arrow.
What is weak acids and bases dissociate only partially?Show answer
The equilibrium lies to the left; both molecular and ionic forms are present at significant concentration. Written with a double arrow.
What is q1?Show answer
Define a Bronsted-Lowry acid and base. Give a balanced equation in which acts as a base. [3 marks]
What is q2?Show answer
Write the equation for the reaction of acetic acid with water and identify both conjugate acid-base pairs. [3 marks]
What is q3?Show answer
Consider phosphoric acid in cane-juice neutralisation. (a) Write three successive dissociations. (b) Identify all conjugate pairs.
Have a question we have not covered?
This dot-point answer is short enough that we have not extracted many short questions yet. Read the full dot-point answer or ask Mo, our study assistant, in the chat for follow ups.