Igcse Model Questions Vol1 2019 Chemistry Question 7
Practice essay / theory question 7 from the 2019 Igcse Model Questions Vol1 Chemistry examination. This question covers Acids, Bases, Salts, Equilibrium constants, Buffer solutions .
A 0.500 g sample of a monoprotic weak acid HA (molar mass 60 g mol⁻¹) is dissolved in 250 mL of water at 25 °C. The resulting solution has a measured pH of 3.80. (a) Calculate the acid dissociation constant (Kₐ) of HA. (b) 20.0 mL of 0.100 M NaOH is added to the solution. Calculate the pH of the resulting mixture, showing all steps.
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This is Igcse Model Questions Vol1 2019 Chemistry Question 7. It is one of the essay questions from the 2019 Igcse Model Questions Vol1 Chemistry examination.
The question covers Acids, Bases, Salts, Equilibrium constants, Buffer solutions .
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