The Buffer Solution in the Flask Was Prepared Using One

question 26

Short Answer

The buffer solution in the flask was prepared using one of the substances shown below.
citric acid (pK_a 3.08)
NaH₂PO₄ (pK_a 7.21)
NH₄Cl (pK_a 9.25)
Using the pH meter and solution shown in the image below, complete the following statements using one of the terms below.
increase
decrease
remain constant
citric acid
NaH₂PO₄
NH₄Cl
-If HNO were added to the buffer solution the pH of the solution would __________.

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