Buffer Solutions That Maintain Certain Levels of PH or Acidity

question 36

Multiple Choice

Buffer solutions that maintain certain levels of pH or acidity are widely used in biochemical experiments. One common buffer system uses sodium dihydrogenphosphate and sodium monohydrogenphosphate. What are the formulas of these two compounds?

• A) Na(HPO₄) and Na(HPO₄)₂
• B) NaH₂PO₄ and Na₂HPO₄
• C) Na₂H₂PO₄ and NaHPO₄
• D) NaPO₄ and NaHPO₄

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