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Energy content of gasoline is about 46 MJ/kg or about 37 MJ/Liter. A small car with engine of specified capacity (e.g. say 40 kW, not needed for problem ) consumes 10 L per hr (e.g. say when traveling at 120 km/hr at 80 % of engine output; not needed for Problem). How much energy consumed in kJ per hr? HP? in kW? BTU/h?
The solubility products of PbSO4 and SrSO4 are 6.3 * 10^-7 and 3.2 * 10^-7, respectively. What are the values of [ SO4 2-], [Pb 2+], and [Sr 2+] in a solution at equilibrium with both substances
25mL of a .10M solution of the weak acid hydrofluoric acid, HF, is titrsted with .10M solution of the weak base amonia, NH3. Will the pH at the equivilance point be less than 7 equal to 7 or greater than 7? Explain. Ka for HF is 7.2e-4 and Kb for ..
1) Why does a glycogen molecule have one reducing end?, From the abbreviated name of the compound galactosyl (alpha beta 1 -->1) glucose we know that,
write the balanced equation for the reaction for delta h is the lattice energy for potassium
which of the following solutes dissolved in 1000 g of h20 would provide a solution with the lowest freezing pts?
The isotope, carbon-14, is a very interesting isotope to study because of how ubiquitous carbon is in living organisms. However, isolating 14C from 14N can be very challenging.
Using the information (A 7.0 x 10 ^-3 aqueous solution of Ca(OH)2 at 25.0 degrees C has a PH of) At equilibrium, what is the molarity of H3O+ in a 0.010 M solution of HClO
For which of the following would a dipole-dipole interactions play an important role in determining physical properties in the liquid state. a) BF3 b)ClF c) BeCl2 d)F2 e)CCl4
What ions and/or molecules are present in relatively large proportions in a solution of a soluble ionic compound NaCl (aq)
Assuming air is made up of 20% oxygen gas and 80% nitrogen gas, what molecules form when air is heated to 20,000K
how much heat is required to convert 27.0 g of ethanol at 23 c to the vapor phase at 78 c in kj? ethanol c2h5oh boils
Amixture of nitrogen and water vapor is admitted to a flask whichcontains a solid drying agent. Immediately after admission, thepressure of the flask is 760 mm Hg.
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