Calculate the percent moisture in aminosalicylic acid if 9 ml of KF reagent is having a water equivalence factor of 4.10 was consumed by a 510 mg sample
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Calculate the percent moisture in aminosalicylic acid if 9 ml of KF reagent is having a water equivalence factor of 4.10 was consumed by a 510 mg sample
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- In the conductivity test, _____________________ is going to result to a brightly lit light bulb. a. 70% v/v ethanol b. 1.0 M citric acid c. Mixture of 10.0 mL 1.0 M Mg(OH)2 and 10.0 mL 1.0 M HNO3 d. Glacial acetic acidIn the ternary phase diagram experiment acetic acid (7.6 mL) and water (1.4 mL) mixture is titrated with chloroform until the solution is turbid. 12 mL chloroform is consumed to complete the titration. Calculate the final mass percentage of acetic acid. density of chloroform = 1.49 g/mL density of water= 1 g/mLdensity of acetic acid = 1.05 g/mL Mw of acetic acid = 60.05 g/molDetermine the total hardness of water (ppm CaCO3; MM: 100.09 g/mole) if 100.0mL sample of drinking water required 38.41mL of 4.65 x 10-3 M EDTA for titration. 179 ppm CaCO3 357 ppm CaCO3 452 ppm CaCO3 733 ppm CaCO3
- An impure sample of 130 mg of adipic acid was dissolved in 1.0 mL of boiling water. What is the maximum amount of recoverable adipic acid at 0 oC? Solubility of adipic acid at 0 oC is 0.3 g/ 100 mL Group of answer choices 124 mg 3 mg 127 mg 130 mgAn impure sample of 250 mg of adipic acid was recrystallized from 2.0 mL of boiling water. The solution was cooled to room temperature slowly and further cooled in an ice bath. What is the maximum amount of recoverable adipic acid at 0 oC? Solubility of adipic acid at 0 oC is 0.3 g/ 100 mL Group of answer choices 6 mg 249 mg 244 mg 250 mgTea leaves were boiled and around 1.00 gram of caffeine were extracted using 175.0 ml of water. if three portions of 20.0 ml of dichloromethane were ised to extract the caffeine from the aqueous layer how may caffeine will be extracted by dichloromethane? Solubility of caffeine in water: 2.18 g per 100 ml water Solubility of caffeine in dichloromethane: 18.2 g per 100 ml dichloromethane
- Calculate the mass of sodium acetate required to mix with 100mL of 0.1M acetic acid (HC2H3O2) toprepare a pH 4.2 buffer solution.The molar solubility of MgCO3 (Ksp = 3.50 x 10-8) in distilled water at room temperature is ______ M. Titration of a 50.00-mL aliquot of the saturated solution will require ______mL of 0.005000 M HCl to reach the phenolphthalein endpoint.A student trying to determine the Ksp for Calcium hydroxide used 10.15 mL of 0.050 M HCl to neutralize the initial volume of 15.00 mL Ca(OH)2 solution. If the accepted value of the Ksp for Ca(OH)2 is 6.5 x 10-6 calculate the percent error from this experiment.
- You have 100 mL of an organic acid solution in water which contains 0.30 g acid. The distribution coefficient of the acid in the ether is close to 10. Calculate the amount of acid that would be left in water after four 20-mL extraction with ether. Do the same calculation using one 80-mL extraction with ether to determine which method is more efficient.What is the solubility of AuBr (Ksp= 5.0 × 10-17 at 25 °C) in g/100mL? A. 7.07×10-9 g/100 mL B. 1.96×10-7 g/100 mL C. 1.96×10-6 g/100 mL D. 2.55×10-11 g/100 mL100 ml of a sample water on titration with N/50 H 2 SO 4 required 9.8 ml of the acid to Phenolphthalein end point and 13 ml of the acid to Methyl orange end point. Determine the type and amount of alkalinity present in the water sample? (Please solve it with details and as soon as possible