To check the concentration of NaOH, a chemist must titrate a primary standardin this case, a solution of potassium hydrogen phthalate (KHP). From mole ratio, number of moles of NaOH = 0.00979 mol. One must assume that the KHP referred to is potassium hydrogen phthalate, and not potassium hydrogen phosphate, otherwise the molar mass would be incorrect. 0 moles KHP Titration Lab Report FINAL .pdf - Saikrupa Rajaramsiva Science Teacher and Lover of Essays. So I researched what KHP was and found that Steve is correct in that it is Potassium Hydrogen Phthalate. Nam risus ante, dapibus a molestie conse, onec aliquet. From the mole ratio, calculate the moles of \(\ce{H_2SO_4}\) that reacted. Most questions answered within 4 hours. Answer in General Chemistry for Malathy #100482 Fusce dui lectus, congue vel laoreet ac, dict, ipsum dolor sit amet, consectetur adipiscing elit. The uncertainty of 2.57% indicates that my values were accurate up to within 2.57%. Report this using the correct number of significant figures. Molar Mass, Molecular Weight and Elemental Composition Calculator Molar mass of KHC8H4O4 is 204.2212 g/mol Get control of 2022! Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. How do you predict the products in acid-base reactions? The NaOH(aq) solution is then titrated against 0.1038 g Write the balanced reaction between KHP and NaOH that occurs in this titration. The molarity of the KHP solution is determined from the mass and volume of KHP used to prepare the KHP solution. 1 0 obj Taking 1.99 grams as supposed to 2.00 grams would have resulted in an inaccuracy of the titration because the percent uncertainty was more when I took 1.99 grams. The deviation in the volume, however, is not the only indicator of noticeable systematic errors. 1.54g of KHP is equivalent to 0.00754 mol of KHP. Dont forget those significant digits! Nam lacinia pulvinar tortor nec facilisisonec aliquet. of an unknown monoprotic acid dissolved in water to a final volume of 50.00 mL. The expected % uncertainty that was expected was 0.500%, and the uncertainty I obtained was 0.503%. Since the indicator reacts with some of the titrant and the indicator may not change at the exact pH of the equivalence point, a small error in introduced in the titration. Donec aliquet. The resultant Acidic solution was transparent, with a small amount of undissolved granules of KHP. In the first, the concentration of the NaOH solution will be determined by titrating it against potassium hydrogen phthalate, (KHC8H4O4, also known as "KHP"). This might have caused some deviations because the volume of sodium hydroxide added was excess. %;,M( }Sn 7@6|ffL0t"wpb|!Fm-d=VA`"&fdVIs@.~/*79zMc,. 100/20= 5. How can we calculate volume for this question of titration - Wyzant eqn. For Free. Donec alique, ultrices ac magna. To achieve this first calculate the number of moles of KHP present in the trial. strong bases. answered 11/20/13, Andre W. Nam lacinia pulvinar tortor nec fague,

ur laoreet. Procedure The experiment consisted of three separate parts: the standardization of NaOH using the acid KHP, the determination of an acetic acid solution's molarity using the standardized NaOH, and using the same NaOH to find a sulfuric acid solution's molarity.
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