MedVision ad

Search results

  1. L

    Does adding H2SO4 increase the yield of esterification?

    Hi, Those familiar with the Jacaranda Chemistry textbook,it says "The concentrated sulfuric acid that is used as a catalyst also acts as a dehydrating agent. When water is removed from the reaction equilibrium, the equilibrium shifts to the right and increases the yield of ester." But from...
  2. L

    Arrhenius and bronstedlowry?

    In the arrhenius theory, acids IONISE to produce H+ ions in aqueous solution which then react with water molecules to produce hydronium H3O+. In the bronsted lowry theory, do acids ionise? since they are described to 'donate protons'. is this still ionisation of the molecule in aqueous...
  3. L

    Difference between degree of ionisation and pH scale

    do both degree of ionisation and the pH scale provide measures of the strength of an acid? If not could you tell me what each represent and measure? thanks
  4. L

    Confusion about acid strength

    ahh i see. thanks for all of your help! greatly appreciated :)
  5. L

    Confusion about acid strength

    wait. yunli in your example of 20mol/L HCl you say barely any acid molecules have ionised. Why is that if HCl is a strong acid which completely ionises in solution?
  6. L

    Confusion about acid strength

    ok you say that 'If at a very high concentration, say 20 mol/L of HCL, you would say it is very concentrated, however it is barely ionised and therefore the [H30+] is extremely low.' i thought since HCl is a strong acid, it always ionises completely?
  7. L

    Confusion about acid strength

    could someone point out the flaw in this and correct me please bc im really confused. ok so a strong acid (take HCl) is always strong regardless of it's molarity. so i can get 10mol/L HCl and call it strong and then get 0.0001 mol/L HCl and call it strong. so when i talk about degree of...
  8. L

    Can anyone do this trial question?

    At least one zero of P(x)=3x^3 + px^2 + 15x + 10 is purely imaginary and p is real. Find p and hence write P(x) as a product of linear factors. Thank You!
Top