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Sodium stearate (C17H35COONa) is a major component of bar soap. The Ka of the stearic acid is 1.3 × 10-5. What is the pH of 10.0 mL of a solution containing 2.19 g of sodium stearate?
For the reaction N2(g) + 3H2(g) --> 2NH3(g) the standard change in Gibbs free energy is ?G° = -72.6 kJ/mol. Explain what is G for this reaction at 298 K while the partial pressures are PN2=.200 atm, PH2=.250 atm and PNH3=.950 atm
Which solvent gave the fastest reaction; ethanol, or the ethanol/acetone mixture? Explain how the solvent affects the rate in the SN1 reaction.
The equilibrium pressure of H2 over solid uranium and uranium hydride, UH3, at 500 K is 139 Pa. Calculate the standard Gibbs energy of formation of UH3(s) at 500 K.
List the following bonds in order of increasing ionic character. (Enter your answer in the format H-O for the hydrogen-to-oxygen bond in H2O. Use the appropriate symbol to separate substances in the list.)
The volume of 0.162 mol of helium gas at 30.1 C is increased isothermally from 2.27 L to 5.43 L. Assuming the gas to be ideal, calculate the entropy change (J/K) for the process.
The observations listed were made on different solns. Given the observations state which ion studied in this experiment is present. If the test is not definitive, indicate that with a (?).
Calculate [OH-] and pH in a solution in which dihyroden phosphate ion, H2PO4-, is 0.355M and hydrogen phosphate ion, HPO4 2- is
Problem- After 71.0 minutes 42.0 percent of a compound is decomposed. What is the half life of the reaction assuming first order kinetics
A mutant hemoglobin has His146 of the beta chain replaced with a threonine residue. predict what the consequence of this mutation might be. specifically
How many drogens would an 8-carbon alkane in which 3 of the carbons branched from the main chain contain?
the set of transitions where the electron falls from a higher level to the nf = 4 state is called the Pickering series, an important series in solar astronomy. Calculate the Pickering series wavelength associated with the excited state ni = 8.
the vapor pressure of pure methyl alcohol at 19?c is 90.0 torr and that of pure ethyl alcohol is 40.0 torr. assume a
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