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Utilizing thermodynamic data from your notes, compute the change in Gibbs free energy for each of the following reactions using Gf's. In each case indicate whether the reaction is spontaneous under standard conditions. (a) HCl(g) + NaOH(aq) NaCl(s) + H2O(l) kJ spontaneous nonspontaneous (b) H2(g) + Cl2(g) 2 HCl(g) kJ spontaneous nonspontaneous (c) 6 Cl2(g) + 2 Fe2O3(s) 4 FeCl3(s) + 3 O2(g) kJ spontaneous nonspontaneous (d) Mg(OH)2(s) + 2 HCl(g) MgCl2(s) + 2 H2O(l) kJ spontaneous nonspontaneous
Why is nitroacetic acid O2NCH2COOH pka=1.68 a much stronger acid than acetic acid CH3COOH pka=4.76
Compute the osmotic pressure in torr of a solution containing 18.75 mg of hemoglobin in 15.0 mL of solution at 25.0oC. IF the molar mass of hemoglobin is 6.5 x 104 g/mol.
a 1.90 g sample of a large boimolecule was dissolved in 11.0 g of carbon tetrachloride. the boiling point of this
The acid dissociation constants listed in most standard reference texts for carbonic acid actually apply to dissolved CO2. For a CO2 partial pressure of 8.3×10-4 atm in the atmosphere, what is the pH of water in equilibrium with the atmosphere
Assuming the difference in relative boiling points of methyl acetate (bp 57ºC) and 2-butanone (bp 80ºC) is caused by the difference in their dipole moments; predict which compound has the greater dipole moment. Use a vector analysis of bond dipole..
Calculate the ion activity product (IAP) and saturation index (SI) of this water with respect to the minerals rhodochrosite (MnCO3), calcite (CaCO3), and gypsum (hydrous CaSO4). Use the following equation
Calculate the mass percent composition of carbon in each the following carbon compounds. C4H10 C6H10 C8H13O5N
Carbonated cola is more acidic than coffee or even orange juice because cola contains phosphoric acid. What is the molar concentration of H3O^+ in a cola that has a pH of 3.120
If the solution has the same density and specific heat as water, what is ?H for this reaction (per mole of H2O produced)? Assume that the total volume is the sum of the individual volumes.
Classify each reaction and give the name of all the chemical formula involved for each number
the specific heat of compound a is 0.50 calg degrees celsius. what amount of heat has been added to 100.0 g of compound
A 50.0 kg mixture of salt and water is 15.0% (by mass) salt. give the mass of salt and water in the mixture
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