Question: . Consider a buffer prepared from the weak acid HCOOH and its conjugate base HCOO . HCOOH (aq) + H,O(/) = HCOO (aq) + H,0

Consider a buffer prepared from the weak acid HCOOH and its conjugate base HCOO . HCOOH (aq) + H,O(/) = HCOO (aq) + H,0" (aq) Part 1 of 3 Why are both HCOOH and HCOO needed to prepare the buffer? Check all that apply. (] So that the ratio of their concentrations changes a great deal when acid or base is added. (| To react with added acid or base to keep the pH from changing very much. (| To keep the ratio of their concentrations from changing very much when acid or base is added. () To react with added acid or base to change the pH a great deal. ) None of the above

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