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How much energy would be absorbed or re- leased by the H2O in the process 30 grams H2O(g) at 100?C → 30 grams H2O(l) at 20?C ?
What is the molaity of a solution prepared by dissolving 75.8 of ethylene glycol, HOCH2CH2OH, in 1.45 L of water? assume the density of water is 1.00 g/mL.
barium metal crystallizes in a body-centered cubic lattic. The unit cell edge length is 502 pm, and the density of the metal is 3.50 g/cm3. Using this information.
Compute the expected change in temperature for 1.7 grams of ammonium nitrate NH 4 NO 3 dissolved in 50.0 mili litres of water H 2 O.
Determine the partial pressure and the total pressure using Dalton's law of partial pressures - Determine the total pressure of the mixture.
What do you expect will happen to the position of this equilibrium when the total pressure of the gases in the reaction mixture is doubled by injecting some argon (Ar) while maintaining the temperature constant.
When C2H5OH +3O2 produces 2CO2 + 3H2O,determine how many grams of oxygen gas are essential for complete combustion of 421grams of ethanol ?
Determine at what temperature must a balloon be heated to have six Litres volume consider that the balloon was at the temperature of 25 degree Celsius and volume of two litres initially?
Consider the following equation: CO + 2 H2 → CH3OH ?H rxn = -128 kJ Calculate the amount of heat (in kJ) associated with complete reaction of 8.08 g H2.
Determine the mass in gms for pure Ag sample that loses 2.88kJ if its temperature drops from 143 degree celsius to 28 degree celsius.?
Calcium fluoride, CaF2, is a source of fluorine and is used to fluoridate drinking water. Calculate its molar mass to four significant figures.
Calculate the specific heat capacity of the metal when the final temperature of the mixture =38.7?C.? (Assume that there is no energy lost to the surroundings.)
At a certain temperature, the equilibrium constant for the reaction 2HI(g)39. At a certain temperature, the equilibrium constant for the reaction 2HI(g) H2(g) + I2(g) is 0.49.
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