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pH values: Boric acid: 5.6 ethylene glycol:6.36 D-mannitol: 6.35 ethylene glycol + boric acid: 5.60 D-mannitol + boric acid: 3.90 By the use of balanced

pH values:

Boric acid: 5.6

ethylene glycol:6.36

D-mannitol: 6.35

ethylene glycol + boric acid: 5.60

D-mannitol + boric acid: 3.90

By the use of balanced chemical equilibria, explain the pH measurements observed in the boric acid solution (on its own) and when this is mixed with d-Mannitol and ethylene glycol. Hint: boric acid reacts with D-mannitol and ethylene glycol in a similar way as with PVA.

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