Question

Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the unwieldy formula of KHCsH04. This is oftern written in shorthand notation as KHP. If 22.64 mL of a sodium hydroxide solution are needed to neutralize 0.8502 grams of KHP, what is the concentration (mol/L) of the sodium hydroxide solution?

Answer 1

Molarity( mol /Lit) is defined as no of moles of compound dissolved in 1000mL solution. Here KHP is monoprotic and NaOH is also mono basic . So reaction between them will happen in 1:1 ratio. 1 mole of NaOH will neutralize 1 mole of KHP.