Taking the value of 9.50 cm3 and mass of 2 grams, the concentration of NaOH should have been 0.103 mol, but the value I obtained due to the excessive deviation gave me 0.0937 mol. Learn how to calculate the mass of KHP (potassium hydrogen phthalate) to standardize a NaOH (sodium hydroxide) solution. Step 1: List the known values and plan the problem. This will be a strong base - weak ac. Nam lacinia pulvin, Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. What. Fusce dui lectus, congue vel laoreet ac, consectetur adipiscing elit. CALCULATIONS molarity of NaOH For each trial calculate the precise molarity of the NaOH solution using the data for the listed trial. Determining Molarity Through Acid-Base Titration - Lab Report - Studocu RAW DATA MASSES Trial #1 Trial #2 Trial #3 mass of KHP weighed out: 0.6096_9 _0.6088_9 0.6022_9 VOLUMES burette reading: FINAL 32.65_ m _33.49_ML_30.47ML burette reading: O INITIAL 3.09 mL 4.29 ML 1.19 mL Volume of NaOH used: minus 0 29.56 mL 29.20 ml 29.28 mL CALCULATIONS molar mass of KHP Show the calculation of the Molar Mass of KHP (KHCH.O4): Tips: - use the Periodic Table in your laboratory manual (inside front cover) to obtain relevant atomic masses. Making educational experiences better for everyone. answered 07/11/19, Ph.D. University Professor with 10+ years Tutoring Experience. Donec aliquet. Based on this equation, we need one mole of KPH to react with each mole of NaOH. 0 moles Lorem ipsum dolor sit amet, consectetur adipiscing elit. The volume of \(\ce{H_2SO_4}\) required is smaller than the volume of \(\ce{NaOH}\) because of the two hydrogen ions contributed by each molecule. The molarity of the NaOH solution is You will determine the concentration (standardize) of an unknown solution of NaOH using the primary standard, potassium hydrogen phthalate. What is the concentration of the stock NaOH solution? 0.02/0= 0 M, Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, Brunner and Suddarth's Textbook of Medical-Surgical Nursing (Janice L. Hinkle; Kerry H. Cheever), Biological Science (Freeman Scott; Quillin Kim; Allison Lizabeth), Give Me Liberty! <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 10. 2005 - 2023 Wyzant, Inc, a division of IXL Learning - All Rights Reserved, Drawing Cyclohexane Rings Organic Chemistry. How do you find the concentration of NaOH? Nam risus ante, dapibus a molestie consequat, ultrices ac ma, consectetur adipiscing elit. Mass of KHP to Standardize a NaOH Solution - YouTube %PDF-1.5 Lorem ipsum dolor sit amet, consectetur adipiscing es a molestie consequat, ultrices ac magna. . \[\begin{align*} &\text{mol} \: \ce{NaOH} = \text{M} \times \text{L} = 0.250 \: \text{M} \times 0.03220 \: \text{L} = 8.05 \times 10^{-3} \: \text{mol} \: \ce{NaOH} \\ &8.05 \times 10^{-3} \: \text{mol} \: \ce{NaOH} \times \frac{1 \: \text{mol} \: \ce{H_2SO_4}}{2 \: \text{mol} \: \ce{NaOH}} = 4.03 \times 10^{-3} \: \text{mol} \: \ce{H_2SO_4} \\ &\frac{4.03 \times 10^{-3} \: \text{mol} \: \ce{H_2SO_4}}{0.02660 \: \text{L}} = 0.151 \: \text{M} \: \ce{H_2SO_4} \end{align*}\nonumber \]. Or, if you type your answers, So what is being weighed isnt totally NaOH, but also the moisture that it has absorbed. ATTENTION: Help us feed and clothe children with your old homework! The chemical formula for KHP is C8H5KO4. moles NaOH = moles KHP x 1 mole NaOH 1 mole KHP 3. The resultant Acidic solution was transparent, with a small amount of undissolved granules of KHP. Show your work. KHP Titration Lab Report FINAL .pdf - Saikrupa Rajaramsiva Convert between KHC8H4O4 weight and moles Elemental composition of KHC8H4O4 Sample reactions for KHC8H4O4 Formula in Hill system is C8H5KO4 The end-point colour in Experiment 5 is the palest-possible light-pink that won't fade within 30 seconds: Experts are tested by Chegg as specialists in their subject area. That's one problem with abbreviations. Acid Base Titration Determination of the Purity of KHP (Potassium 1.54g of KHP is equivalent to 0.00754 mol of KHP. of an unknown monoprotic acid dissolved in water to a final volume of 50.00 mL. How many moles of NaOH were consumed in this trial? Nam lacinia pulvinar tortor, inia pulvinar tortor nec facilisis. CALCULATIONS molarity of NaOH For each trial calculate the precise molarity of the NaOH solution using the data for the listed trial. 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