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It is estimated that the Earth's ruminants (cattle, sheep, etc.) produce 73 million metric tons of CH4 each year. In this amount of CH4 there would be................ million metric tons of carbon. (Use two significant figures).
the temperature unknown. When the volume changes to 1.68L the temperature is found to be -220oC. What was the initial temperature in C?
The water-gas shift reaction is important in hydrogen gas production. The balanced reaction shown below has a Kp of 9.48 at 700K. If 1.5 atm of H20 are placed in a container and heated to 700K, how much hydrogen gas
What mass of lead sulfate is formed in a lead-acid storage battery when 1.41g of Pb undergoes oxidation
A student follows the procedure for his experiment and burn a peanut. The peanut weighed 0.780 g before combustion and 0.054 g after combustion. The temperature change of an aluminum can be filled with 200 mL of water was 15.3 degree Celsius. (Den..
Calcium chloride is added to a polymer solution of sodium alginate to cross-link the polymers, reating a thicker mixture which is used to add texture of food (like milk shakes). What is the explanation for why this happens?
Why should a distilling flask be filled to not more than two-thirds of its capacity at the beginning of a distillation procedure?
Oleum or fuming sulfuric acid available commercially in concentrations ranging from 20 to 99.9% sulfur trioxide. Discuss at least three potentially hazardous features associated with concentrated sulfuric acid.
A mixture of 4.0 mol of H2 and 2.0 mol of O2 is placed in a sealed evacuated container made of a perfect insulating material at 27C. The mixture is ignited with a spark and it reacts to form liquid water. Find the temperature of the water.
The activity of the mixed sample was found to be 4.35 x 107 dpm for a sample of 0.125 mg of Pu. Calculate the weight % of each Pu isotope present.
The theoretical energy consumption per kg of aluminum and the current required for the production of 1 metric ton of aluminum per day
Calculate the nuclear binding energy per mole of nuclei of and the binding energy per mole of nucleons for 31P. The required masses (g/mol) are: 1 1H = 1.00783; 1 0n = 1.00867; 31 15P = 30.97376
high spin whereas octahedral complexes can be either high or low spin, depending on the metal and/or ligand. What is the most likely explanation of this experimental result?
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