Experiment #2: An experiment run found that the two enantiomers of Isoflurane do not act the same as anesthetics, in that it took a smaller amount of one to produce the same anesthetic effect as the other. What is a chiral receptor? What roles do chiral receptors play in biological systems? Does the fact that the two enantiomers of Isoflurane do not act the same support or disprove the hypothesis listed above? Explain your answer

Describe what is infrared (IR), nuclear magnetic resonance (NMR) and mass spectrometry (MS) and tell what chemical structure information can be determined from each.

Based on the structures of Isoflurane & Sevoflurane and what you have learned in Modules 5 and 8 this semester, would you expect these molecules to be hydrophilic or lipophilic? Explain your answer. (Make sure you base your answer on the structures alone – please note that your answer may or may not correlate with the experimentally determined result.)

What role do you think light plays in electron movement? Since light also functions as a wave, what is the relationship between light and electrons?

Assuming 100% dissociation, calculate the freezing point (TfTf) and boiling point (TbTb) of 1.39 m SnCl4(aq)1.39 m SnCl4(aq).

Colligative constants can be found in the chempendix.

Pure l-phenylalanine has a specific rotation of -35.1 degrees. What is the enantiomeric excess of a 10.0 g/mL solution of phenylalanine which when placed in a standard 1.00 dm cell and analyzed in a polarimeter rotates plane polarized light -31.6 degrees?

I. what is the energy content (GJ/ha) of willow at 55% moisture content, if it has a calorific value of 7MJ/kg and a yield of 22 tonnes/ha at 55% M.C?

II. if one tonne (1145 litres) equals 43GJ, what is the oil equivalent in litres of the willow per hectare?

III. if edenderry power station has an excess CO2 how many tonnes of willow at 55% M.C would be needed to clear the excess CO2? peat has a calorific value of 8GJ/tonne and yields 0.856 tonnes of CO2 per tonne burned

IV. what is the energy content of 10 ha of miscanthus at 20% M.C if the net calorific value is 13.7 MJ/kg at a yield of 12.5 tonne/ha?

What fraction of ethane-1,2-dithiol is in each form (H2A, HA-, A2-) at pH=9.25? Please do show all work. Thank you!

Given cyclopentane at 1000kPa, calculate the following:

a) The saturation temperature associated with the pressure that you were given, assuming that the system is in vapour-liquid equilibrium. Use an equation of state method to solve this problem.

b) The molar volume of the vapour and liquid phase.

d) The fugacity at saturation.

The data below shows the production of CO₂ from carbonic aanhydrase. The zero-order rate constant was measured at different temperatures. Calculate E_A , Delta H⁺ , the Arrhenius Constant, and Delta S⁺.

What is the lowest temperature at which the following reaction is spontaneous? H2O(g) + C(graphite) ----> H2(g) + CO(g)

A 50.0ml aliquot of 0.100 M NaOH is titrated with 0.200 M HCl. Calculate the pH of the solution after addition of 0.0, 5.0, 10.0, 25.0, 35.0, 45.0, 55.0 of HCl. Plot the titration curve in a graph paper.

1) Can you tell me spontaneous redox rxn at 25°C?

i. Au (s) + Fe^3+ (aq) → Au^+ (aq) + Fe^2+ (aq)

ii. 2 Fe^3+ (aq) + 2 I^– (aq) → 2 Fe^2+ (aq) + I2 (s)

iii. 2 Li^+ (aq) + F2 (g) → 2 Li (s) + 2 F^– (aq)

2) Whats best oxidizing agent at 25°C?

A. F– (aq)

B. Fe2+ (aq)

C. Ca2+ (aq)

D. Na (s)

E. Br2 (g)

Redox Reactions: Less active metals like copper will reacti with concentrated nitric acid to produce nitric oxide gas and the Cu²⁺_(aq) ion at 25C.

A) Write balanced chemical equation for this process.

              6H⁺_(aq) + 2HNO_3(aq) + 3Cu_(s) --> 3Cu²⁺_(aq) + 2NO_(g) + 4H₂O _(aq)

B) Evaluate change in E for the reaction in (a).