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The decomposition reaction given below: 2 NH3(g) 1 N2(g) + 3 H2(g) is carried out in a closed reaction vessel. If the partial pressure of NH3(g) is decreasing at the rate of 131 torr/min, what is the rate of change of the total pressure in the vessel? Ptot /t = ___torr/min
Which of the experimental results for the photoelectric effects suggest that light can display particle-like behavior
The most common source of copper is the mineral chalcopyrite (CuFeS2) how many kilograms of chalcopyrite must be mined to obtain a 440 grams of pure copper.
Identify the limiting and excess reactions and how many grams of the excess will be unused.
Use a spreadsheet to calculate the composition of dry air at 5400K and 1 bar. Take the initial composition as .78 mol N2, .21 mol O2 and .01 mol Ar. Neglect the ionization of NO.
At a certain temperature the vapor pressure of pure benzene and pure toluene are 380 torr and 130 torr, respectively.
petit discovered the empirical rule that the specific heat times the atomic weight of many solid elements is a constant: Using this rule, calculate the specific heat of copper and platinum.
What mass of KBr is needed to prepare 325 mL of 0.750M? How many mL of 2.50M KBr is needed to prepare this same solution
How many milliliters of 0.270 M Na2S2O2 solution are needed to titrate 2.303 of I2 according to the equation below
a. A 0.1044 gram sample of an unknown monoprotic acid required 22.10 mL of 0.0500 M NaOH to reach the end point. What is the molar mass of the unknown?
The complete combustion of 1.076g of C9H8O in a bomb calorimeter ( Cccalorimeter=3.895 kJ/ degree C) produced an increase in temperature of 11.21C. Calculate the molar enthalpy of combustion in kJ/mol.
Determine the final concentration if A 134 ml portion of that solution is diluted using 147 ml of H 2 O?
N and H undergo a combination reaction under appropriate conditions, to yield ammonia: N2 (g) +3H2 (g) →2NH3 (g), determine how much sample of N2 in grams requires 3.0 g of H2 for complete reaction.
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