A student titrates an unknown amount of potassium hydrogen phthalate ( KHC,H,O,, often abbreviated KHP) with...
A solution of NaOH has an unknown concentration. When 1.396 g of potassium hydrogen phthalate (KHP a monoprotic acid frequently used as an analytical standard) is titrated with the sodium hydroxide the end point is 42.54 mL. Use this information to compute the concentration of NaOH in the solution. The molar mass of KHP is 204.22 g mol1. [OH mol L
11. 12. Potassium hydrogen phthalate (KHP, KHC,H,O,) is also a good primary standard. 20 mL of NaOH was titrated with 0.600 M KHC,H,O, solution. The data was graphed and the equivalence point was found when 15.5 mL of the standard 0.600 M KHP solution was added. The reaction equation is: NaOH(aq) + KHC2H4O2(aq) → KNaC3H.O. (aq) +H2O (0) a. What is the molar ratio of NaOH:KHC,H,04? b. What is the molarity of the NaOH solution? 13. Calculate the amount of...
A student weighs a sample of potassium hydrogen phthalate (KHP) to prepare a primary standard for a titration. She later discovers that the KHP was contaminated with sugar. To determine the amount of KHP in the mixture, she takes 5.942 g of the mixture and make a 100.0 mL solution. The student then titrates 10.00 mL of this solution with a 0.1491 M sodium hydroxide solution. She finds that 13.12 mL of the NaOH solution is needed to reach the...
Potassium hydrogen phthalate, abbreviated KHP, is used to standardize NaOH solutions. A standard KHP solution is made by dissolving 2.12 grams of KHP in 100.00 mL of water. The KHP solution is then titrated with NaOH solution. It takes 23.12 mL of NaOH to reach the endpoint. What is the concentration of the NaOH?
1. A solution of sodium hydroxide (NaOH) was standardized against potassium hydrogen phthalate (KHP). A known mass of KHP was titrated with the NaOH solution until a light pink color appeared using phenolpthalein indicator. Using the volume of NaOH required to neutralize KHP and the number of moles of KHP titrated, the concentration of the NaOH solution was calculated. Molecular formula of Potassium hydrogen phthalate: HKC8H404 Mass of KHP used for standardization (g) 0.5306 Volume of NaOH required to neutralize...
NaOH was standardized by titration against a standard acidic solution of potassium hydrogen phthalate (KHP). 0.4798 g of KHP were dissolved in 100 ml of water to prepare the standard KHP solution. a) What is the molar mass of KHP? (you need to look up its formula and calculate its molar mass from the periodic table). b) If 45.22 ml of sodium hydroxide were required to neutralize the KHP solution, what is the molarity of NaOH?
1. A solution of sodium hydroxide (NaOH) was standardized against potassium hydrogen phthalate (KHP). A known mass of KHP was titrated with the NaOH solution until a light pink color appeared using phenolpthalein indicator. Using the volume of NaOH required to neutralize KHP and the number of moles of KHP titrated, the concentration of the NaOH solution was calculated. Molecular formula of Potassium hydrogen phthalate: HKC8H404 Mass of KHP used for standardization (g) 0.5100 Volume of NaOH required to neutralize...
What is the concentration of a sodium hydroxide solution if 0.2033 g of potassium hydrogen phthalate (KHP- MW 204.22 g/mol) requires 10.40 mL of NaOH solution to reach the phenolphthalein end point? Answer with three decimal places.
Potassium hydrogen phthalate (KHP) is used to standardize sodium hydroxide. If 15.18 mL of NaOH(aq) is required to titrate 0.5614 g KHP to the equivalence point, what is the concentration of the NaOH(aq)? (The molar mass of KHP = 204.2 g/mol) HCH,0, (aq) + OH (aq) SCH,02 (aq) + H,0(1)
(6) Potassium Hydrogen Phthalate (KHP) is used as a primary standard (to standardize basic solutions) because it is solid and air-stable, making it easy to weigh accurately. It's solubility in water is 80 g/L. Convert this to mols dm. Molar mass of KHP is 204.22 g/mol (7) State the reaction between your acid component in vinegar and sodium hydroxide. What volume of 0.250 NaOH will react exactly with 25.00 cm of the diluted vinegar in problem 4?