The buffer capacity of the blood is 25.3 mmol/l.What does it mean?

Question

Answer

That adding 25.3 mmol of strong base to 1 L of blood will change the pH of the blood by 1

Answer

That adding 25.3 mmol of strong non-electrolyte to 1 L of blood will change the pH of the blood by 1

Answer

That adding 25.3 mmol of strong acid to 1 L of blood will change the pH of the blood by 1

Answer

That adding 25.3 mmol of strong salt to 1 L of blood will change the pH of the blood by 1

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