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For the equilibrium 2H2S(g) <-> 2H2(g)+S2(g) Kc=9.0x10^-8 at 700 degrees C.The initial concentrations of the three gases are 0.550 M H2S, .550 M H2, and .275 M S2. Determine the equilibrium concentrations of the gases.
How much energy (in calories) is needed to heat 12cm^3 of fat from room temperature (25C ) to its melting point (35C)? Specific heat of fat 0.45 cal/(g*C, and the density of fat is .94g/cm^3)
what is a disccussion part for determination of the molar volume of a gas and atomic weight of a metal?
A gas sample was collected over water at 25.3 degrees Celsius, The total pressure is determined to be 0.97 atm. What is the partial pressure of the gas that was collected?
Why isn't sodium hydroxide? In the reaction of Aldol reaction to form ethyl trans-cinnamate. Reactant are Benzaldehyde and ethyl acetate.
10.0 grams of sodium bicarbonate reacts with 50.0 mL of 2 M acetic acid, what is the limiting reactant? what reactant is in excess, and by how much? what volumeof carbon dioxide gas would form?
Suppose a bone from an ancient human contains 17.5% of the {rm C}-14 found in living organisms. How old is the bone?
write a balanced equation for the reaction that occurs between the solutes. Calculate the concentration of each remaining ion in solution. Is the resultant solution acidic or basic
A backpacker wants to carry enough fuel to heat 2.7 of water from 30 to 100.0 . If the fuel he carries produces 36 of heat per gram when it burns, how much fuel should he carry? (For the sake of simplicity, assume that the transfer of heat is 100 ..
Find the molar mass of the compound. The reezing point of benzene is 5.49 degree celcius.
What is the stoichiometric relationship between IO3- and I2? b. What is the stoichiometric relationship between I2 and S2O3 2-? c.
If, in a certain experiment, over a specific time period, 0.0033 mol PH3 is consumed in a 1.5-L container each second of reaction, what are the rates of production of P4 and H2 in this experiment?
Calculate the standard reaction enthalpy for the formation of boron trifluoride, which is widely used in the chemical industry:B2O3(s) + 3CaF2(s) > 2BF3(g) + 3CaO(s).
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