6. What is the pH of 0.03 mol dm- ethanoic acid? Ka = 2 x 10- mol dm-

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6 & 7 pleasee, thank you 

5. A student mixes 30 cm³ of 1 mol dm HC{aq) with 20 cm³ of 1 mol dm-3 NaOH(aq). What is the final
pH?
6. What is the pH of 0.03 mol dm-³ ethanoic acid?
Ka = 2 x 10-5 mol dm
7. What is the lowest possible pH?
1 mol dm- HClhas a pH of zero. Can anything be lower?
Transcribed Image Text:5. A student mixes 30 cm³ of 1 mol dm HC{aq) with 20 cm³ of 1 mol dm-3 NaOH(aq). What is the final pH? 6. What is the pH of 0.03 mol dm-³ ethanoic acid? Ka = 2 x 10-5 mol dm 7. What is the lowest possible pH? 1 mol dm- HClhas a pH of zero. Can anything be lower?
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