A student weighs 0.583 g Baclz-2H20 and 0.637 g CuSO:-5H20, and dissolves each in water to a final volume of 50 mL in volumetric flasks. The student combines 28.5 mL of the barium chloride solution with 25.9 ml of the copper(II) sulfate solution in a beaker. After the precipitate forms, the mixture is filtered by vacuum filtration. If the filtrate is collected, do you expect more precipitate to form when barium chloride or copper(II) sulfate is added to the filtrate? Why (show calculations to back up your reasoning)? Calculate the maximum mass (i.e. theoretical yield) of the dry precipitate formed in the student's experiment.

You mix aqueous solutions of 100.0 mL 1.70 M NaCl and 75.o mL 1.20 M Pb(NO3)2, calculate the mass of of precipitate formed.

Sample Mass of Original Mixture (g) Mass of Watch Glass (g) Mass of Filter Paper (g) Mass of Watch Glass, Filter Paper, and Precipitate (g) Avery 2.023 31.997 0.220 32.949 Zachariah 1.992 27.391 0.198 28.164 Sample Results from addition of ZnSO4 to supernatant (Beaker 1) Results from addition of Na3PO4 to supernatant (Beaker 2) Avery No change Precipitate forms Zachariah Precipitate forms No change 3 ZnSO4(aq) + 2 Na3PO4(aq) Zn3(PO4)2(s) + 3 Na2SO4 What was the mass, in grams, of the limiting reactant in the original mixture for Avery’s experiment?

A 5.00-mL sample of vinegar was pipetted into a flask, two drops of phenolphthalein indicator were added, and the acid was titrated with 45.62 mL of 0.1008 M NaOH. If the density of the pipetted acetic acid solution was 1.004 g/mL, what was the percentage of acetic acid in the sample? MW HOAc =60.1 g/mol

A 4.908-g sample of a petroleum product was burned in a tube furnace, and the SO2 produced was collected in 2% H2 O2. Reaction: SO2 (g) + H2O2 → H2SO4 A 27.00-mL portion of 0.00826 M NaOH was introduced into the solution of H2 SO4, following which the excess base was back-titrated with 15.15 mL of 0.01165 M HCl. Calculate the sulfur concentration in the sample in parts per million. Concentration ppm

Give detailed Solution with explanation needed

part b

A student mixes 80.0 mL of 0.010 M Ba(NO)(aq) with 80.0 mL of 0.010 M NaSO(aq) both being strong electrolytes.  Calculate the mass of BaSO(s) that precipitates from the solution: BaSO4(s) <--> Ba^2+(aq) + SO4^2-(aq)       Ksp= 1.1x10^-10 if the molar mass of bariums sulfate is 233.38 g/mol.

Analytical chemistry

5.00 mL of acetic acid required 37.28 mL of 0.0999 M NaOH to be neutralized in a titration. Calculate the molarity of vinegar.