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  1. S

    Amphiprotic helps plase ^^

    With the aid of appropriat4e equations, explain why the dihydrogen phosphate ion, H2PO4- is amphiprotic, yet an aqueous solution of KH2PO4 has a pH greater than 7. ( 5 Marks ) how would i answer this question? any help please?
  2. S

    BOD help please! :)

    thank you so much for your help! :):)
  3. S

    BOD help! :)

    Describe the test for BOD and evaluate its importance with respect to the monitoring of the possible eutrophication of waterways. 6 marks I'm not sure how to answer this question. help please :D:D
  4. S

    BOD help please! :)

    Describe the test for BOD and evaluate its importance with respect to the monitoring of the possible eutrophication of waterways. 6 marks I'm not sure how to answer this question. help please :D:D
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