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World energy supplies are often measured in the unit of quadrillion British thermal units (10^12 Btu ), generally called a "quad." In 2015, world energy consumption is projected to be 5.81x10^17 kJ . Current annual energy consumption in the United States is 99.2 quads. Assume that all this energy is to be generated by burning CH4(g) in the form of natural gas. If the combustion of the were complete and 100 % efficient, how many moles of CH4 would need to be combusted in order to provide the U.S. energy demand?
If only COF2 is present initially at a concentration of 2.00 M , what concentration of COF2 remains at equilibrium? Express the molar expression numerically
Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq)
When some ionic compounds dissolve, not all of their bonds dissociate. What kind of conductivity would you expect such a solution to have?
A 125 lb patient is to receive a drug at a rate of 0.300 mg per 1.00 kg of body weight. If the drug is supplied as a solution containing 5.00 mg/mL, how many milliliters of drug solution should the patient receive
how many moles of nitrogen gas will be formed upon the complete reaction of 31.6 grams of nitrogen monoxide with excess hydrogen gas?
a 0.4 kg aluminum part increases its temperature by 25 degrees celsius. how much thermal energy is transfered to the part by heat?
what would be the effect on your calculated mass percent recovery of Cu if you did not completely react the Mg in the reaction mixture? Briefly explain.
What is the van't Hoff factor for HX in water? b) What is the molality of X1- ions in the solution?
At what temperature (celsius) will the rate constant for the reaction be 140.0 s-1? Use the conversion Kelvin = C + 273.15
When Copper (II) sulfate is prepared from copper (II) nitrate and sodium sulfate, the reaction initially produces a hydrated product: Cu(NO3)2 + Na2SO4 + 5H2O yield CuSO4 x 5 H2O + 2 NaNO3
NaOCl, by mass. Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water to make 500.0 mL of a pH = 9.80 solution.
The rate constant of a reaction is 2.75*10^-5 L/mol*s at 195 c and 3.75*10^-3 L/mol*s at 258 c. What is the activation energy of the reaction
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