Task 4. For the following statements, use up to 20 words to explain why or why not. Keep calculations to an absolute min
Posted: Sun May 22, 2022 11:47 pm
- Task 4 For The Following Statements Use Up To 20 Words To Explain Why Or Why Not Keep Calculations To An Absolute Min 1 (12.16 KiB) Viewed 18 times
(a) If the K₂ of HCLO4 is 1 x 10%, the K₂ of ClO should be 1 x 105 Hint: is this a conjugate pair? What do we know about K₂ x K₂ of a conjugate pair? (b) The pH of 1M H3PO4 is higher than the pH of 1M Na3PO4 (c) pK₂ of HSO4 + pK₂ of HSO = 14 Hint: What do we know about pK₂ + pk of a conjugate pair? Is it a conjugate pair? (d) pk of HPO² + pk of H₂PO₂ = 14 Hint: Is HPO4²- the conjugate weak acid of H₂PO₂? (e) At 75°C, pH + pOH > 14 Hint: Is the water dissociation reaction endothermic or exothermic? According to le Chatalier's principle, do we add heat to the left or to the right? (f) A solution of potassium ethanoate (acetate) is alkaline (g) A solution of baking soda (NaHCO3) is alkaline