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Using (and citing) appropriate sources, determine the energy output for E-85 (ethanol) and gasoline (octane) on
a) a per mole basis,
b) a per gram basis, and
c) a per gallon basis
Calculate the standard cell potential and equilibrium constant at 25 C for the cell reaction in a direct methanol fuel cell. 2CH3OH (l) + 3O2 (g) --> 2CO2 (g) + 4H2O (l)
You are told to buy 5 packages of deli turkey, 3 loaves of bread and one jar of pickles. Our question is: how many sandwiches can we make?
What is the percent ionization of a solution prepared by dissolving 0.0223 mol of chloroacetic acid, HC2H2O2Cl) in 1.80 L of water? For chloroacetic acid, Ka = 1.4 ? 10-3.
Consider the following approximate figures relating to cigarette smoking and cancer. The death rate in the US population of 270 million is 15 deaths per 1000 persons per year. One-fifth of these deaths are from cancer and one-fourth of the cancer ..
If 45.0mL of ethanol {(density = 0.789 g/mL) initially at 9.0 degrees C is mixed with 45.0mL of water (density} = 1.0g/mL) initially at 28.3 degrees C in an insulated beaker, and assuming that no heat is lost, what is the final temperature of the m..
when two grams of sodium hydroxide were dissolved in 149 grams of h2owater in a calorimeter at twenty four degree
Given a restriction enzyme that has a concentration of 50 units/ml but your experiment requires that the concentration be reduced to 2.5 units/ml.
If you built a standard galvanic cell using the following half-reactions, what is the maximum work that could be done by this standard cell? (deltaG=wmax)
how many grams of iron (2) chloride would you need in order to make 2.0 L of a .050 M iron (2) Chloride solution?
flask of nitrogen is collected over water at a total pressure 765.0 mm Hg. If the partial pressure of the water vapor is 25.0 mm Hg, what is the pressure exerted by the nitrogen?
Chlorides are at the corners of a primitive cube with a cesium in the middle. Using the Cs atom as the origin calculate the first three terms of the Madelung constant for a CsCl crystal. Recall that M is cal calculated in terms of the ionic "bond ..
Find the volume of hydrogen evolved when 3.25g of zinc granules react completely with excess hydrochloric acid solution (Zn=65)
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