1) If 0.080 grams of salicylic acid is used to prepare 100. mL stock solution, what it the final concentration of this solution? Show your calculation.
1) If 0.080 grams of salicylic acid is used to prepare 100. mL stock solution, what...
A 0.080 M NaOH solution was used to titrate a 20.00 mL sample of hydrobromic acid with a concentration of 0.040 M. (a) What is the volume of base needed to reach the equivalence point? (4 pts) (b) What is the pH after adding 7.0 mL of base? (4 pts) (c) What is the pH at the equivalence point? (3 pts)
In the extraction of salicylic acid from water using dichloroethane, a student begins with 3 grams of the salicylic acid dissolved in 100 ml of water. After extraction with 20 ml of dichloroethane, drying and evaporation of the organic layer yielded 1.74 grams of salicylic acid. Assuming the student was efficient and did not lose any material, what is the distribution coefficient (Kd) for the system ? let Kd = (concentration in organic solvent) / (concentration in aqueous solvent)
What is the pH of a solution that is prepared by dissolving 7.20 grams of salicylic acid (formula weight = 138.12 grams/mol) and 7.12 grams of sodium salicylate (formula weight = 160.10 grams/mole) in water and diluting to 700.00 mL? The Ka for salicylic acid is 0.00105.
In the extraction of salicylic acid from water using dichloroethane, a student begins with 2.9 grams of the salicylic acid dissolved in 100 ml of water. After extraction with 20 ml of dichloroethane, drying and evaporation of the organic layer yielded 1.972 grams of salicylic acid. Assuming the student was efficient and did not lose any material, what is the distribution coefficient (Kd) for the system ? let Kd = (concentration in organic solvent) / (concentration in aqueous solvent) a....
0.3926 g of salicylic acid is dissolved in water and made up to 250.0 mL in a volumetric flask. Then, 4.00 mL of this solution is pipetted into a 50.0 mL volumetric flask and diluted with water to the mark. What is the final salicylic acid concentration?
0.3856 g of salicylic acid is dissolved in water and made up to 250.0 mL in a volumetric flask. Then, 3.00 mL of this solution is pipetted into a 50.0 mL volumetric flask and diluted with water to the mark. What is the final salicylic acid concentration?
Calculate the molarity of a solution that contains 5.77 g salicylic acid in 100 mL of solution. Report the answer to the nearest one-hundredth of a M without units.
2 grams of salicylic acid mixed with 5ml of acetic anhydride.
Final aspirin product is 2.17 grams.
2.3. Calculate the theoretical yield in mass (g) of final aspirin product. Show the details in the calculation
A) A student weighed out 3.52 g. of salicylic acid in a 100 mL flask and adds 2.3 mL of acetic anhydride (density= 1.080 g/mL). Determine the maximum(theoretical) number of grams of acetylsalicylic acid she can prepare. B) If the student obtained 4.21 g. of aspirin, calculate the % yield. Briefly, explain why she might have obtained this amount of product.
Calculate the number of moles of each of the reagents used: salicylic acid. 4.9 grams used Molecular Weight: 138.12 g/mol Density: 1.443 g/mL