mcq on water chemical & physical properties

MCQ on Water, pH and Buffer Systems (Part-3)

(1). What is the molecular weight of water?       a.       10 g/mol       b.      15 g/mol       c.       18 g/mol       d.      20 g/mol (2). What is the H+ ion concentration in pure water?      a.       1 X 10-7 m   […]

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biological chemistry

Why the pH of water is 7?

What is pH? ⊗.  pH is defined as the negative logarithm of hydrogen ion concentration in a medium. ⊗.  For example, if you are saying a solution with pH 6.5, it means that the concentration of H+ ions in that solution expressed in negative logarithmic term is 6.5. ⊗.  pH […]

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