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Natural gas is primarily methane, CH4, and is used to heat homes. A typical home is approximately 2000 ft2 and the ceilings are 8 ft high. The following data may be helpful: The heat capacity of air is 1.01 J/g·K and the and the enthalpy of combustion of methane is -890.8 kJ/mol. Assume that the molecular weight of air is the same as nitrogen, its major component.
Select the most important resonance structure for this species based on the formal charges on the atoms of the three resonance structures you have drawn. Now select the statement from the multiple choices which is true about this most important re..
How much energy in kJ must be absorbed to heat up a volume of ocean water 2 m high by 20 km wide by 30 km deep by 3°C.
What is the percent yield?
As a reaction progresses backwards toward equilibrium K is the highest value Q attains. e) A reaction with no products present has an infinite Q value.
Taking into account resonance, which of the following has/have the weakest C-O bond
It takes 54.0 J to raise the temperature of an 10.3g piece of unknown metal from 13.0C to 25.0 C. What is the specific heat for the metal?
Sirius, the brightest object on the night sky besides the moon and the larger planets and, is a two-star system. The surface temperature of the larger one (Sirius A) is 9940 K. What's the wavelength of the maximum in its emission spectrum. What co..
raise the temperature of an 12.5g piece of unknown substance from 13.0 oC to 26.2 oC. What is the specific heat for the substance?
A lactic acid/lactate ion buffer solution contains 0.31 M HC3H5O3 and 0.90 M C3H5O3- , respectively. The Ka value of lactic acid is 1.4x10^-4 . Calculate the PH of this buffer.
potassium iodate reacts with potassium iodide and hydrochloric acid to produce iodine water and potassium chloride.
boyles law states that when a sample of gas is compressed at a constant temperature the pressure and volume satisfy the
Calculate the heat that must be supplied to 0.104g of Ne(g) at 0.250 atm to raise its temperature from 22.0 degree Celsius to 60.0 degree Celsius at
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