Diagnostic Misconceptions - Concentration

Chemistry: AQA GCSE Higher, topic 6.2.12

Test yourself on Diagnostic Misconceptions - Concentration

  • How will increasing the concentration of a reactant affect the equilibrium position in a reversible reaction if there is an excess of all other reactants?

  • The following reaction occurs in equilibrium:
    BiCl3(aq) + H2O(l) ⇌\rightleftharpoons BiOCl(s) + 2HCl(aq)

    What would happen to the position of the equilibrium if you were to add BiCl3(aq) with an excess of H2O?

  • The following reaction occurs in equilibrium:
    Fe3+(aq) + SCN−(aq) ⇌\rightleftharpoons FeSCN2+(aq)

    What would happen to the position of the equilibrium if you increased the concentration of FeSCN2+(aq)?

  • How will decreasing the concentration of a reactant affect the equilibrium position in a reversible reaction?

  • The following reaction occurs in equilibrium:
    BiCl3(aq) + H2O(l) ⇌\rightleftharpoons BiOCl(s) + 2HCl(aq)

    What would happen to the position of the equilibrium if you were to remove HCl(aq) from the reaction vessel?

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