A student has 480.0 mL of a 0.1140 M aqueous solution of CoCl2 to use in...
A student has 530.0 mL of a 0.1082 M aqueous solution of MnSO4 to use in an experiment. He accidentally leaves the container uncovered and comes back the next week to find only a solid residue. The mass of the residue is 12.79 g. Determine the chemical formula of this residue. If the substance is a hydrate, use a period instead of a dot in its formula.
To determine the concentration of a solution of sulfuric acid, a 125.0-mL sample is placed in a flask and titrated with a 0.1433 M solution of cesium hydroxide. A volume of 20.29 mL is required to reach the phenolphthalein endpoint. Calculate the concentration of sulfuric acid in the original sample. A student has 530.0 mL of a 0.1474 M aqueous solution of MnSO4 to use in an experiment. He accidentally leaves the container uncovered and comes back the next week...
used to titrate a solution of iron(II) ions., with which it reacts according to Cerium(IV) sulfate Ce4(aq)Fe2 (aq)>Ce3*(aq) + Fe3 (aq) A cerium(IV) sulfate solution is prepared by dissolving 40.47 g of Ce(SO42 in water and diluting to a total volume of 1.000 L. A total of 19.41 mL of this solution is required to reach the endpoint in a titration of a 100.0-mL sample containing Fe(aq). Determine the concentration of Fe2 in the original solution It is desired precipitate,...
1)In the laboratory, a general chemistry student measured the pH of a 0.405 M aqueous solution of aniline, C6H5NH2 to be 9.254. Use the information she obtained to determine the Kb for this base. Kb(experiment) = 2) In the laboratory, a general chemistry student measured the pH of a 0.405 M aqueous solution of codeine, C18H21O3N to be 10.793. Use the information she obtained to determine the Kb for this base. Kb(experiment) = 3) The hydroxide ion concentration, [OH-], of...
In the laboratory, a general chemistry student measured the pH of a 0.488 M aqueous solution of hydrofluoric acid to be 1.711. Use the information she obtained to determine the Ka for this acid. Ka(experiment) = In the laboratory, a general chemistry student measured the pH of a 0.488 M aqueous solution of benzoic acid, C6H5COOH to be 2.273. Use the information she obtained to determine the Ka for this acid. Ka(experiment) = In the laboratory, a general chemistry student...
In the laboratory, a general chemistry student measured the pH of a 0.506 M aqueous solution of hydrocyanic acid to be 4.833. Use the information she obtained to determine the K, for this acid. K (experiment) In the laboratory, a general chemistry student measured the pH of a 0.540 M aqueous solution of benzoic acid, CH3COOH to be 2.218. Use the information she obtained to determine the K, for this acid. K (experiment)
1)In the laboratory, a general chemistry student measured the pH of a 0.360 M aqueous solution of triethylamine, (C2H5)3N to be 12.120. Use the information she obtained to determine the Kb for this base. Kb(experiment) = 2)In the laboratory, a general chemistry student measured the pH of a 0.360 M aqueous solution of aniline, C6H5NH2 to be 9.198. Use the information she obtained to determine the Kb for this base. Kb(experiment) =
In the laboratory, a student dilutes 26.4 mL of a 10.5 M nitric acid solution to a total volume of 250.0 mL. What is the concentration of the diluted solution? Concentration = How many milliliters of 11.6 M hydrochloric acid solution should be used to prepare 5.50 L of 0.100 M HCl? Interpret the following equation for a chemical reaction using the coefficients given: CO(g) + Cl2(g) →→ COC12(g) On the particulate level: of CO(g) reacts with — of Cl2(g)...
In the laboratory, a general chemistry student measured the pH of a 0.430 M aqueous solution of acetie acid to be 2.571. Use the information she obtained to determine the K, for this acid. Ka(experiment)- Submit Answer Retry Entire Group 9 more group attempts remaining In the laboratory a student measures the percent ionization of a 0.430 M solution of acetic acid to be 0626 %. Calculate value of Ka from this experimental data. Ka-l In the laboratory, a general...
in the laboratory, a student measured the pH of a 0.463 M aqueous solution of quinoline, C9H7N to be 9.217. use this information she obtained to determine the Kb for this base. Kb (experiment) = ????