How would you prepare 0.5 ml of a 0.5mol / L benzoate buffer at pH 4.5 using a 4.0mol / L benzoic acid solution and a 2.0mol, d * m ^ - 3 sodium benzoate solution? The pKa value of benzoic acid is 4.19.

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The total number of nucleons

Answerd. may include all of these are many definitions of bases: the  brønsted-lowry definition of acids and bases says that bases are proton acceptors.the arrhenius definition of acids and bases says that bases increase [oh⁻] in solution (thereby producing oh⁻ ions)the lewis definition of acids and bases says that bases donate electron pairs.therefore, the sensible answer is that a base may include all of the described characteristics.

The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance.