Solution
First we need to calculate the mol of acid
Mol of acid = Molarity × Volume
Where, Molarity = 0.100 M = 0.100 mol / L, Volume = 15 mL = 0.015 L
Putting these values in the above equation then we get
Mol of acid = 0.100 mol/L × 0.015 L = 0.0015 mol
So,
Weight of acid = mol of acid × molar mass of acid
Weight of acid = 0.0015 mol × 150 g/ mol = 0.225 g
Determine the amount of acid you need to weight, assuming that the molar mass is 150g/mol,...
determination of the molar mass and ionization constatant of a
weak, monoprotoc acid. ( Lab 8)
I need help with the rest of the table.
Instructor Name EXPERIMENTS DETERMINATION OF THE MOLAR MASS AND IONIZATION CONSTANT OF A WEAK, MONOPROTIC ACID Report Sheet B. TITRATION OF ACETIC ACID Trial 1 Trial 2 Trial 3 Acetic acid/L solution Volume of acetic acid (mL) Initial buret volume (ml) 3g/L 30 ml 30mL 30mL OmL OmL OML T 14mL 16ML | 15mL |...
5. The Ka and Molar Mass of a Monoprotic Weak Acid a. Suppose that–unknown to you–the primary standard KHP (potassium hydrogen phthalate, KHC8H4O4) had a potassium iodide impurity of approximately one percent by mass. How would this have influenced the calculated molarity of your sodium hydroxide solution? Would your calculated value be too low, too high, or unchanged? Explain your answer. b. Sketch a typical titration curve for a monoprotic weak acid titrated with a strong base. Label the axes...
7) Assume the molar mass of the unknown acid is about 200 g/mol, calculate the mass of unknown needed to react with 25 mL of your NaOH solution. NaOH: 0.1252 g monoprotic g diprotic g triprotic
A 0.5216 ?g sample of an unknown monoprotic acid was titrated with 9.94×10?2 M NaOH. The equivalence point of the titration occurs at 23.76 mL . Part A Determine the molar mass of the unknown acid. Express your answer using three significant figures
Determine the molar mass monoprotic acid used in the experiment from the following data obtained during the course of this experiment a) 40mL of pre prepared 3.0g/L of an unknown monoprotic acid in a 100mL beaker for titration with NaOH using the pH meter b) Molarity of NaOH Mb= 0.0768moles/L determined by titration with known strength of khp c) Volume of NaOH to equivalence point = 23.5mL
Your ticket will appear here once you na ve correctly ans w ered an or ше реао quesuon. Prelab for Experiment 6- Titration of an Unknown Acid In this prelab, answers to questions l and 2 should be reported toateastisennoantngurs Scientific notation format 2.34E 4. The 'E' must be capitalized." The prelab questions mirror those that you will be doing at the end of the experiment. Bring your work for this prelab assignment to lab and you will have a...
Physiological Chemistry Laboratory II - SPRING 2020 8. Calculate the unknown mass of a sample of KHP (204 22 a/mol) if it consumed 39.27 mL of a 0.5094 Min solution to reach the phenolphthalein end point. 9. If 28.75 ml of 0.2055 M HCl are required to reach the end point of a titration of a 46.93 ml sample of NaOH, what is the molarity of the NaOH solution? What if the acid was phosphoric acid, H3PO4? 10. Titration of...
A student adds 13.11 grams of propionic acid (a monoprotic acid with molar mass = 74.08 g/mol) to water. When she takes a 25.00 g sample of this solution, and titrates it with 0.1111 M NaOH(aq), she finds that she needs to add 17.17 mL of this solution to reach the endpoint. What was the percent by mass of propionic acid in the solution she made?
6. a) If the titration of 2.729 g of an unknown triprotic acid requires 48.15 mL of 0.4012 M NaOH to reach the third equivalence point, what is the molar mass of this unknown acid? Show your work with units and correct significant figures. 7. If the second equivalence point in the titration of a diprotic acid is at 39.48 mL of strong base titrant added, at what volume is the? First half-equivalence point? Second half-equivalence point? 39.48 ml Second...
A 10.0 mL sample of saturated calcium hydroxide solution is titrated using 0.0145 mol/L hydrochloric acid. To reach the titration endpoint, 30.89 mL of hydrochloric acid is required. What is the molar solubility of calcium hydroxide, in mol/L, at the temperature of the experiment? Provide your answer to the correct number of significant figures.