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a) calculate the Gibbs energy ,entropy, and enthalpy of mixing 1 mol C6H14(hexane) is mixed with 1 mol C7 H16(heptane) at 298K: treat the solution as ideal b) what prortions of hexane and heptane should be mixed: i) by mole fraction. ii) by mass in order to achieve the greatest entropy of mixing
High-purity benzoic acid (C6H5COOH; change H (rxn) for combustion = -3227 kj/mol) is used as a standard for calibrating bomb calorimeters. A 1.221-g sample burns in a calorimeter
125 mL of H2O is initially at room temperature(22°C). A chilled steel rod at 2°C is placed in the water.If the final temperature of the system is 21.3°C, what is themass of the steel bar
Propose a structure for an amine of formula C4H9N, which does not liberate a gas when treated with NaNO2 and HCl, and has IR absorptions at 917 cm-1, 990 cm-1, and 1640 cm-1, as well as an N-H absorption at 3300 cm-1. The 13C NMR spectrum is as fo..
Explain a non-reducing sugar found in honey has the molecular formula C18H32O16. Acidic hydrolysis gives 1 mole D-fuctose, 1 mole. Compute the total number of stereoisomers possible for this trisaccharide
a gas with a pressure of 1.33 atm is transferred to a container with twice the volume and the temperature was tripled.
What fraction of piperazine (perhydro-1,4-diazine) is in each of its three forms (H2A, HA-, A2-) at pH 8.44
If 323 g of magnesium reacts with excess oxygen to produce 296 g of magnesium oxide, what is the percent yield for the reaction?
Using bond enthalpies, estimate the heat of the gas phase reaction of methane with bromine to form methyl bromide and hydrogen bromide.
a 75ml mixture is prepared with 30ml of potassium iodide of concentration 0.180m 15ml of na2s203 of concentration
Write the net ionic equation for this reaction. (Include states-of-matter under the given conditions in your answer. Use the lowest possible whole number coefficients.)
Compute the free energy change needed for transport of sufficient protons to make gastric juice of 1 litter at the temperature of 37 degree celsius hence expect above reaction will happen spontaneously?
assuming an e coli cell is a cylinder 2 micrometers long and 1 micrometer in diameter and that many proteins in an e
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