NAOH is the base. 0.2899 M 2. Suppose you analyzed a different unknown acid that is...
Please help with my Titration lab! I am having difficulty understanding this. Thank you! C. Analyzing an unknown base - optimizing a method: In this segment you will design your own method for analyzing an unknown base. In the solutions list there are several different concentrations of HCl to choose from. You can also try different sample volumes of the unknown base. Be sure to record these for each trial. Your goal is to find two different combinations of HCI...
If the 20mL of 0.125 M NaOH is required to titrate 10mL of an acid unknown concentration to reach the equivalence point, then find the concentration(molarity) of the unknown acid.
How to caculate moles of NAOH added and the molarity of unknown acid Sheets (To be attached to your lab report. Recopy if messy) Data Sheets 1 by Unknown Letter oticMolarity of NaOH (mol/L).o Volume of unknown acid (mL.) A. Initial volume0.5 m Run 1 Run 2 Run 3 NaOH 206 20 64 m 33. 35 w B. Final Volume NaOH NaOH volume added (subtract B - A) Moles NaOH added Analysis: Molarity of unknown acid (assuming the acid is...
answer (2) 2. Suppose that you used a known concentration (0.8442 M) of Ca(OH)2 to determine the concentration of an unknown HBr solution. If it takes 12.88 mL of the Ca(OH)2 solution to titrate 15.00 mL of the unknown HBr solution, what is the molarity of the HBr? 1. A solid diprotic weak acid, H2A (molecular weight = 128.9 g/mol) is used to standardize a KOH solution. When 0.4228 g of the acid is dissolved in 40.0 mL of water...
The titrant solution is on the last page. All the info needed is on the pages provided. paticularly on the last page Table 1: Standardization Data Trial 3 Trial 1 Trial 2 O.47644 0.4701 25. mL ou779 12.7mL 25. mL 12.4 mL Mass of KHP Initial burette reading 2.7mL 37,Sm 2.4m Final burette reading 12.7mL Volume of base used Data Analysis: 1. Write a balanced molecular equation (with phases, of course) for the reaction between the KHP and the titrant...
7. (6 pts) 20.5 milliliters of 0.506 M NaOH is required to titrate 25.0 milliliters of sulfuric acid of unknown concentration. Find the molarity of the acid. 7. (6 pts) 20.5 milliliters of 0.506 M NaOH is required to titrate 25.0 milliliters of sulfuric acid of unknown concentration. Find the molarity of the acid.
Analysis of Acetic Acid Unknown M Acetic Acid Average M Unknown Average % Acetic Acid Analysis of Acetic Acid Unknown ID of Unknown used Trial 1 Trial 2 Vol. Unknown used Vol. NaOH used Mmol NaOH used M Acetic Acid, calc. Average M Unknown ml mmol 7. mmol Average % Acetic Acid HoAc Audlcnstn 17.4 (assume density - 1 g/mL) Show the calculations used for Sample 1 for the determination of the molarity of unknown Acetic acid sample and for...
35.25 mL of NaOH solution are required to titrate 0.5745 g of an unknown monoprotic acid. Prior standardization of the NaOH determined its concentration as 0.1039 M. 1. Use the data provided to determine the molar mass of the unknown acid 2. If 20 mL of a 1.0 M solution of the unknown monoprotic acid is placed into a beaker and 10 mL of 0.1 M NaOH is added, the pH of the final solution is 1.9. What is the...
Experiment 10 An Acid-Base Neutralization Reaction A. Determination of Unknown Acid Concentration Trial Trial 2 Trial 3 Trial 4 Volume of acid 10m 10m 10m 10mL Final buret reading- NaOH (mL) To.8ML 23.8ml 26.2m4 29.4m Initial buret reading- NaOH (mL) Volume of NaOH required to reach the end point. V 10.8m. 13ML 2.4mL 3.2mL Molarity of the acid, M. 10. OmL/108m./23.8mL 26.2mL) Unknown acid number: 16 Molarity of NaOH: Average Molarity of acid 0-1076m Show all calculations for trials 1...
you titrated an unknown acid with 0.0925 M NaOH, 0.6201g of the unknown acid was placed into an Erlenmeyer flask with10 ml of water and 2-3 drops of phenolphthalein. It took 32.34ml of NaOH to reach the endpoint. What is the molecular weight and the pKa of the unknown acid?