It forms white powder, colorless crystals, a colorless solution, and an ionic … density of potassium hydrogen phthalate is equal to 1 636 kg/m³; at 25°C (77°F or 298.15K) at standard atmospheric pressure. Elsevier; 23rd Edition (May 7, 2018). Phthalic acid dipotassium salt. Potassium hydrogen phthalate (abbreviated as KHP) has the molecular formula KHC 8 H 4 O 4 and a molar mass of 204.22 g/mol. Potassium hydrogen phthalate, KHC8H4O4 (abbreviated KHP), is a non-hygroscopic, crystalline, solid that behaves as a monoprotic acid. Reweigh the boat with any remaining potassium hydrogen phthalate to the nearest 0.01 g. Stir to dissolve the solid, adding more water if necessary. Add about 30mL of distilled water and two or three drops of phenolphthalein. 500mL = 0.5L. Potassium hydrogen phthalate, known as KHP (molar mass $=$ 204.22 $\mathrm{g… 02:36 A student titrates an unknown amount of potassium hydrogen phthalate $\left(… If 23.67 ml of NaOH (aq) is required to titrate 0.7719 g KHP to the equivalence point, what is the concentration of the NaOH(aq)? To get molar mass 204.2 would mean that there would need to be 2.873 moles of KHP which is a little weird to have decimal mole quantities. Potassium hydrogen phthalate has a molar mass of 204.22 \ "g/mol". What is the molar concentration of the NaOH solution? Potassium phthalate. Properties Chemical formula. KHP is also a useful standard for total organic carbon (TOC) testing. Molar mass calculator also displays common compound name, Hill formula, elemental composition, mass percent composition, atomic percent compositions and allows to convert from weight to number of moles and vice versa. - Find MSDS or SDS, a COA, data sheets and more information. It also serves as a thermal standard in thermogravimetric analysis.[6]. Potassium hydrogen phthalate, KHC8H4O4 (abbreviated KHP), is a non-hygroscopic, crystalline, solid that behaves as a monoprotic acid. 877-24-7. Potassium hydrogen phthalate (abbreiviated as KHP) has the molecular formula KC8H4O4 and a molar mass of 204.22 g/mol. About Potassium hydrogen phthalate; Potassium hydrogen phthalate weighs 1.636 gram per cubic centimeter or 1 636 kilogram per cubic meter, i.e. How to solve: Potassium hydrogen phthalate (KHP) is used to standardize sodium hydroxide. What is its molecular formula, if it is possible to calculate? Potassium hydrogen phthalate. Molecular Formula C 8 H 5 KO 4; Average mass 204.221 Da; Monoisotopic mass 203.982498 Da; ChemSpider ID 12839 milliequivalent per deciliter [meq/dl],  microequivalent per deciliter [µeq/dl],  nanoequivalent per deciliter [neq/dl]  and  picoequivalent per deciliter [peq/dl]. Potassium Hydrogen Phthalate (877-24-7) LD50 oral rat ≥ 3200 mg/kg ATE US (oral) 3200 mg/kg bodyweight . NOTE: IF YOU SPILLED ANY KHP DURING THE WEIGHING PROCESS, CLEAN IT UP BEFORE CONTINUING. I get 4.62*10^-2 \ "M". Weigh between 0.9 and 1.1g of potassium hydrogen phthalate into a 125mL Erlenmeyer flask and record the mass to the nearest milligram. of the molar mass of the unknown acid, which may be useful in determining the chemical formula, but the molar mass is based off of assumptions regarding proton donation. About Potassium acid phthalate; Potassium acid phthalate weighs 1.636 gram per cubic centimeter or 1 636 kilogram per cubic meter, i.e. 6. Acidity: (pKa) 5.4. gram per liter [g/l],  milligram per liter [mg/l],  microgram per liter [µg/l],  nanogram per liter [ng/l]  and  picogram per liter [pg/l]. Molecular Formula. Then convert moles of KHP to grams (by multiplying by the molar mass … KHC8H4O4 is a white solid at room temperature. Potassium hydrogen phthalate, KHC8H4O4 (abbreviated KHP), is a non-hygroscopic, crystalline, solid that behaves as a monoprotic acid. Finding molarity of NaOH from a titration with potassium hydrogen phthalate (KHP) abrar Wed, 02/18/2009 - 17:57 Suppose .6319g of KHP is titrated to the … It is soluble in water. A 0.397 g sample of potassium hydrogen phthalate, KHC8H404 (molar mass = 204.44 g/mol) is dissolved with 50 mL of deionized water in a 125-mL Erlenmeyer flask. National Institute of Standards and Technology; U.S. Department of Commerce; 1401 Constitution Ave N.W. Dipotassium phthalate. Last accessed: 24 Octobert 2020 (amazon.com paid link). Main Hazards: Irritant to eyes, skin, and respiratory system. For the latter, benzoquinone is suggested. Ph Eur - Find MSDS or SDS, a COA, data sheets and more information. Potassium hydrogen phthalate (KHPh) is a salt of phthalic acid that can be used in the production of more complex phthalates and it is used as standard substance for lab titrations. will the reported molar concentration of the sodium hydroxide solution be too high,too low or unaffected For the radio station KHPH in Hawaii, see, "KHP" redirects here. Calculate how much of this gravel is required to attain a specific depth in a cylindrical,  quarter cylindrical  or in a rectangular shaped aquarium or pond  [ weight to volume | volume to weight | price ], Iron difluoride tetrahydrate [FeF2 ⋅ 4H2O] weighs 2 200 kg/m³ (137.34151 lb/ft³)  [ weight to volume | volume to weight | price | mole to volume and weight | mass and molar concentration | density ], Volume to weight,  weight to volume and cost conversions for Corn oil with temperature in the range of 10°C (50°F) to 140°C (284°F), square mile (mi²) is a non-metric measurement unit of area with sides equal to one mile. Monopotassium phthalate. for bases is the weak acid potassium hydrogen phthalate, KHC 8H 4O 4, which is frequently abbreviated KHP. HC8H4O4 - (aq) + OH- (aq) <-->C8H4O4 2-(aq) + H2O Potassium hydrogen phthalate, often called simply KHP, is an acidic salt compound. It is not hygroscopic. [3][4][5] It is also used as a primary standard for calibrating pH meters because, besides the properties just mentioned, its pH in solution is very stable. What is the molarity of the sodium hydroxide solution? Problem 77 Hard Difficulty. Hydrogen potassium phthalate KHP KHPh Monopotassium phthalate Phthalic acid potassium salt Potassium acid phthalate Potassium biphthalate Potassium biphthalate monopotassium salt. Using a handbook, look up up the formula and structure of potassium hydrogen phthalate (khp) used to standardize the solution of naoh in this experiment. millimole per deciliter [mm/dl],  micromole per deciliter [µm/dl],  nanomole per deciliter [nm/dl]  and  picomole per deciliter [pm/dl]. KHC8H4O4(aq) + NaOH(aq) ===> … Potassium hydrogen phthalate (molar mass = 204.2 g/mol is used to standardize sodium hydroxide. Potassium hydrogen phthalate (molar mass = 204.2 g/mol is used to standardize sodium hydroxide. suppose that the potassium hydrogen phthalate is not completely dry. USP. If 22.10 mL of NaOH is required to titrate 0.6103 g KHP to the equivalence point, what is the concentration of the NaOH? Because of its high purity, you can determine the number of moles of KHP directly from its mass and it is referred to as a primary standard. KHC8H4O4 can be used for pH meter calibration or as a buffer agent. CAS 877-24-7, pH 4.0 (50 g/l, H₂O, 20 °C). KHP can be used as a buffering agent in combination with hydrochloric acid (HCl) or sodium hydroxide (NaOH) depending on which side of pH 4.0 the buffer is to be. If 20.35 mL of NaOH is required to neutralize 0.397 g We first find the concentration (molarity) of the potassium hydrogen phthalate. Use a CLEAN scoopula to weigh the exact mass of KHP specified on your drill sheet. Label this vial and keep it capped when it is not in use. Answers: 1 Get Other questions on the subject: Chemistry. 1977. The molecular formula is KHC8H4O4 . Calculate x moles of KHP by multiplying 0.2 & 0.5. calculate the molar mass of kph. Chemistry. Potassium hydrogen phthalate, known as KHP (molar mass $=$ 204.22 $\mathrm{g} / \mathrm{mol}$ ), can be obtained in high purity and is used to determine the concentration of solutions of strong bases by 27. potassium hydrogen phthalate equivalent weight. The mass and molarity of chemical compounds can be calculated based on the molar mass of the compound. Potassium hydrogen phthalate (molar mass = 204.2 g/mol is used to standardize sodium hydroxide. Phthalic acid monopotassium salt. A solid sample of KHP is dissolved in 50 mL of water and titrated to the equivalence point with 22.90 mL of a 0.5010 M NaOH solution. 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