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Worldwide combustion of methane, CH4 (natural gas),provides about 10.9x10^16 kJ of energy per year. If methane has anenergy content of 39x10^3 kJ/m^3 (at STP), what mass of CO2 isemitted into the atmosphere each year from methane combustion?Also, express that emission rate as metric tons of carbon (not CO2)per year. Metric ton=1000 kg How would you convert kJ to grams?
what is the maximum mass of aspartame you can add to 2.00kg of pure water and still have the solution freeze.
A sample contained a mixture of CdS and ZnS. The amount of CdS was determined by reacting 5.903 g of the sample with an excess of HCl to release H2S from each compound
It takes 51.0 J to raise the temperature of an 11.0 g piece of unknown metal from 13.0 degrees celcius to 24.0degrees celcius What is the specific heat for the metal? Express your answer numerically, in Joules/gram Degrees celcius
n2h4l o2g reverse reaction arrow n2g 2 h2olcalculate the k value associated with the reaction at 25 degrees celcius
A feed mixture of ethanol and water is 40 mole % ethanol. The feed is at 200 degrees Celcius and is at a high enough pressure that it is liquid. It is input into the column through a valve, where is flashes. Column pressure is 1 kg/cm^2. Find the ..
A chemist must dilute 10.7mL of 3.68 M (Molarity) aqueous sodium thiosulfate (Na2S2O3) solution until the concentration falls to 1.00M.
A sample of a gas at 0.91 atm occupies a volume of 374 mL. If the temperature remains constant, what will be the new pressure if the volume increases to 265 mL?
What is the order of increasing polarity of the compounds: benzophenone, trans-stilbene, 2-naphthol, benzoic acid
When atoomic orbitals are hybirdized the s orbital and at least one p orbital are always hybirdized. III. to create tetrahedral structures the s orbital and all three p orbitals must be hybirdized.
If 2 x 10-4 moles of S2O82- in 50 mL solution are consumed in 188 seconds, what is the rate of consumption of S2O82-
The elements of group 1 (Li-Cs) are very electropositive because of A. they all have small atomic radii B. they all have high second ionisation energies C
Which of these elements occupies a position on the periodic table that is not entirely consistent with its chemical properties
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