*Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the

Question

*Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory to standardize strong base solutions. It has the unwieldy formula of KHC8H4O4. This is often written in shorthand notation as KHP.
How many grams of KHP are needed to exactly neutralize 35.5 mL of a 0.278 M sodium hydroxide solution ?

*Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory to standardize strong base solutions. It has the unwieldy formula of KHC8H4O4. This is often written in shorthand notation as KHP.
What volume of a 0.576 M sodium hydroxide solution is needed to exactly neutralize 4.62 grams of KHP ?

Explanation / Answer

Ans1 :

The number of moles of NaOH = 0.0355 x 0.278 = 0.009869 moles

Since both NaOH and KHP are mono basic and mono protic respectively , the number of moles of KHP will also be 0.009869 moles

So the amount of KHP in grams = 204.22 x 0.009869 = 2.015 grams

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