# 0.3043 g of pure KHP was weighed out and titrated to an end point with 15.12 mL of a NaOH solution that was approximately 0.1 M. What is the exact concentration of the NaOH titrant?

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0.3043 g of pure KHP was weighed out and titrated to an end point with 15.12 mL of a NaOH solution that was approximately 0.1 M. What is the exact concentration of the NaOH titrant?

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Step 1

Neutralization reaction between KHP (C8H5KO4) and NaOH is given below,

Step 2

Number of moles of KHP reacted can be calculated as follows, help_outlineImage TranscriptioncloseMass No. of moles = Molar mass (0.3043 g) (204.22g mol) = 0.00149 moles KHP fullscreen
Step 3

From the balanced equation, it is clear that one moles of KHP reacts with one moles of NaOH. Hence, 0.00149 mo... help_outlineImage TranscriptioncloseVolume of NaOH = 15.12 mL = 15.12x 103 L No. of moles of NaOH Concentration Volume(L) (0.00149 mol) (15.12x 103 L) 0.0985 mol/L =0.0985 M fullscreen

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