Is blood an acid or a base? Chemistry Acids and Bases Acids and Bases 1 Answer anor277 Mar 20, 2016 Human blood is slightly alkaline. Explanation: This site reports that the #pH# of blood #=# #7.45#. Of course, blood #pH# would be rigidly buffered, and very modest excursions of #+-# #0.5# units would lead to deleterious effects. Answer link Related questions How do resonance structures affect acidity? How does carbon dioxide change the acid-base condition of a solution? Why do strong acids have a low pH? Is neutralization a double replacement reaction? Why is NaH a strong base? Is HBr a strong acid? Is HF a strong acid? Why does neutralization occur? Do strong acids completely dissociate in water? How can I calculate pH of weak acid? See all questions in Acids and Bases Impact of this question 4170 views around the world You can reuse this answer Creative Commons License