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A 25.00 ml of vinegar sample was diluted to 250 ml using a volumetric flask. A 50.0 ml aliquot portion of the dilute vinegar solution needed 35.45 ml of 0.1200 M NaOH to reach the phenolpthalein end point. (a) Calculate the no. of millimoles of NaOH required to reach the endpoint (b) Calculate the no. of millimoles of acetic acid present in the 50 ml aliquot portion that was titrated (c) Concentration of acetic acid in the titrated aliquot portion (d) The concentration of acetic acid in the volumetric flask (e) Calculate the total mass of acetic acid dissolved in the solution contained in the volumetric flask (f) The mass(g) of acetic acid dissolved in the solution contained in the volumetric flask came drom the 25.00 ml vinegar sample. Calculate the mass of acetic acid present in the 25 ml vinegar sample. (g) Calculate the % CH3COOH (w/v) present in the 25.00ml vinegar sample
Calculate the concentrations of all species in a 1.66 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1=1.4x10^-2 and Ka2=6.3x10^-8.
Help me understand specifically why the dissociated phosphate ion would prefer to bond with cations like Al and Zn. I think I know why but help me better understand.
Assuming that the 3s- and 3p-orbitals will form molecular orbitals similar to those formed when 2s- and 2p-orbitals interact, according to molecular orbital theory
How many grams of Na3PO4 will be needed to produce 425mL of a solution that has a concentration of Na+ ions of 1.10M ?
What molar ratio of sodium acetate to acetic acid (NaAc/HAc) should be used in preparing a buffer having a pH of 4.35? (Ka = 1.8×10-5 for acetic acid.)
How many carbon dioxide in kilograms is produced upon the complete combustion of 18.9 L of propane(Many home barbecues are fueled with propane gas
What is the pH of a 1.00 L solution which initially has 0.042 mol acetic acid and 0.020 mol sodium acetate once 0.006 mols of NaOH has been added.
Work out the solubility of copper(II)sulfide. Take it that 1 litre of the mixture weighs 1 kg. (in g/100g), CuS (s) Cu^2+ (aq) + S^2- (aq)
Determine the concentration of H+ ions in a solution of HCl that was prepared b diluting 50.0 mL of concentrated (11.6 M) Hydrochloric acid to a final volume of 500mL?
How many atomsof carbon are present in 34.5 grams of caffeine?
The annual production of zinc sulfide (ZnS) is 3.5 10^4 tons. Estimate the number of tons of SO2 produced by roasting it to extract zinc metal.
When a monosaccharide reacts to give the pyranose form from its open-chain form, how many distinct pyranose forms are possible?
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