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Social Science0.3043 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?
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?
Expert Answer
Neutralization reaction between KHP (C8H5KO4) and NaOH is given below,
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NaC ,H,ко, + H,о СН.Ко, + Naон
Number of moles of KHP reacted can be calculated as follows,
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Mass No. of moles = Molar mass (0.3043 g) (204.22g mol) = 0.00149 moles KHP
From the balanced equation, it is clear that one moles of KHP reacts with one moles of NaOH. Hence, 0.00149 mo...
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Volume 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
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