Explain each of the following terminologies: Back titration, Blocking (of indicator), Chelate, Chelate effect, Complexometric titration,...
Explain each of the following terminologies: Back titration,
Blocking (of indicator), Chelate,
Chelate effect, Complexometric titration, Direct titration,
Formation constant, Metal ion indicator,
Multidentate ligand
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Explain each of the following terminologies: Back titration,
Blocking (of indicator), Chelate,
Chelate effect, Complexometric titration,...
In the titration of H2SO4 solution with NaOH, identify each of the following titrant: analyte: indicator:
In the titration of H2SO4 solution with NaOH, identify each of the following titrant: analyte: indicator:
Explain which of the following indicators would be appropriate for a strong acid-strong base titration? Indicator...
Explain which of the following indicators would be appropriate for a strong acid-strong base titration? Indicator pH of color change Bromphenol blue 3.0 - 4.6 Bromothymol blue 6.0 - 7.6 Phenolphthalein 8.0 - 9.6
Calculate the value of the conditional formation constant, Ki', for EDTA with the following metal ions....
Calculate the value of the conditional formation constant, Ki', for EDTA with the following metal ions. State for each if a titration of that ion at the listed pH would be quantitative or not. (Consider the pH values as exact numbers.) a. K+ at pH 8 Ca2+ at pH 11 Co3+ at pH 1 Cu2+ at pH 4
Anesthetics block pain by blocking the transmission of nerve signals. Explain why each of the following...
Anesthetics block pain by blocking the transmission of nerve signals. Explain why each of the following types of chemicals would or would not work as an anesthetic: A chemical that prevents the opening of sodium channels in the membranes A chemical that inhibits the enzymes that degrade neurotransmitters A chemical that blocks neurotransmitter receptors
explain the effect of each of thes following sources of error on the molarity of acetic...
explain the effect of each of thes following sources of error on the molarity of acetic acid as determined in this experiment stating whether the concentration of acetic acid obtained would be too high or too low. a. The buret is contaminated with an acid solution b. The buret contains a larger air bubble in the tip, which disappears in the course of a titration. c. A small volume of the acid solution is spilled when you transfer it into...
Explain the effect of each of the following stresses on the position of the following equilibrium:...
Explain the effect of each of the following stresses on the position of the following equilibrium: 3 NO(g) ←→ N2O(g) + NO2(g) The reaction as written is exothermic. (a) N2O(g) is added to the equilibrium mixture without change of volume or temperature. (b) The volume of the equilibrium mixture is reduced at constant temperature. (c) The equilibrium mixture is cooled. (d) Gaseous argon (which does not react) is added to the equilibrium mixture while both the total gas pressure and...
Explain what effect the following scenarios would have on the calculated specific heat (i.e. would it...
Explain what effect the following scenarios would have on the calculated specific heat (i.e. would it be calculated artificially high, low, or have no effect). Your explanation should address what variable(s) would be affected by the scenario and how that affects the calculation of specific heat.(1.5pt each) A student accidently dropped the piece of metal on the countertop during the process of transferring it from the boiling water bath to the calorimeter, but was quickly picked up and put into...
For each of the following complexes draw the structure, determine the electron count at the metal...
For each of the following complexes draw the structure, determine the electron count at the metal centre (use the neutral ligand method) and give the oxidation state of the metal (0) [Tan-CsHs)-(CH3)3] (11) [Ni(n-C3Hs)(PPh3>(CO)2] (111) [Mn(n-CHS)(CO)3]* [Ru(PMe3)2(CHPh)C12] (v) [Co(H2-COXCO);}2 Assume a direct Co-Co bond in (v) Explain, using suitable diagrams, the Berry pseudorotation mechanism
Q2 (a) Explain the effect of each of the following changes on the molar mass of a polymer formed by radical polymerisati...
Q2 (a) Explain the effect of each of the following changes on the molar mass of a polymer formed by radical polymerisation, assuming everything else is kept constant as much as possible: (i) Doubling the initiator concentration (ii) Reducing the monomer concentration by a factor of five (iii) Adding a chain transfer agent
15. Explain the effect on a company's stock price today of each of the following events,...
15. Explain the effect on a company's stock price today of each of the following events, other things held constant. a. The interest rate on bonds falls. b. Several companies in the same sector announce sur- prisingly higher sales. c. A change in the tax law passed last year reduces this year's profit. d. The company unexpectedly announces that due to an accounting error, it must amend last year's accounting statement and reduce last year's reported profit by $5 million....
Calculate the value of the conditional formation constant, Ki', for EDTA with the following metal ions. State for each if a titration of that ion at the listed pH would be quantitative or not. (Consider the pH values as exact numbers.) a. K+ at pH 8 Ca2+ at pH 11 Co3+ at pH 1 Cu2+ at pH 4
For each of the following complexes draw the structure, determine the electron count at the metal centre (use the neutral ligand method) and give the oxidation state of the metal (0) [Tan-CsHs)-(CH3)3] (11) [Ni(n-C3Hs)(PPh3>(CO)2] (111) [Mn(n-CHS)(CO)3]* [Ru(PMe3)2(CHPh)C12] (v) [Co(H2-COXCO);}2 Assume a direct Co-Co bond in (v) Explain, using suitable diagrams, the Berry pseudorotation mechanism
15. Explain the effect on a company's stock price today of each of the following events, other things held constant. a. The interest rate on bonds falls. b. Several companies in the same sector announce sur- prisingly higher sales. c. A change in the tax law passed last year reduces this year's profit. d. The company unexpectedly announces that due to an accounting error, it must amend last year's accounting statement and reduce last year's reported profit by $5 million....
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