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Writing a lab report on Complexion of Metal Ions with EDTA. We initially prepared an EDTA solution with target concentration of 0.05 M, and titrated that solution by NaOH (known concentration). The second "pathway" used to determine exact concentration of EDTA was by adding a MgSO4 7H2O to the EDTA solution and titrating it by the same NaOH. I am trying to figure out what makes the titration curve shift when the metal is added, and basically I am trying to explain/understand why this pathway can be used in order to determine the concentration of the EDTA solution.
What is the molarity of C6H12O6 in an aqueous solution that is prepared by dissolving a 20.95 g sample of impure C6H12O6 in water to make 1,450 mL of solution.
A reaction was conducted in benzene as the solvent. Because the reaction was very exothermic, the mixture was cooled in a salt-ice bath. This was a bad choice. Why?
After 61.0min, 19.0% of a compound has decomposed. Explain what is the half-life of this reaction assuming first-order kinetics
if a temperature scale were based on the freezing point 5.5 c and boiling point 80.1 c of benzene and the temperature
the geometric angle between the two bonds that connect an alpha-carbon to its nearest neighbors on the polypeptide
To prepare 100 mL of a 0.500 M solution of this hydrated form requires 0.0500 moles of this salt. Calculate the grams of this compound that equals 0.0500 moles, showing all your calculations.
If 145 mL of 1.10 M KCl are diluted to 515 mL, what is the molarity of the final solution?
Why will the extraction of benzoic acid by NaHCO3 generate a greater pressure of gas in the separatory funnel than the extraction
Describe the procedure for conducting a melting point experiment. Include the names of the equipment used and the observations you could expect to make.
Suppose that you have 175 mL of a buffer that is 0.300 M in both benzoic acid (C6H5COOH) and its conjugate base (C6H5COO%u2013). Calculate the maximum volume of 0.250 M HCl
CaCN2 + 3H2O -> CaCO3 + 2NH3 . How much NH3 is produced if 187 g of CaCO3 are produced?
When 15 mL of a solution containing 1.2 M Na2S is diluted to 30mL, a dilute solution is formed. How many moles of Na+ ions are contained in 20 mL of the dilute solution
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