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A reaction vessel of volume 20.0 L contains 5.0 mol of nitrogen gas, 3.0 mol of hydrogen gas, and 2.5 mol of oxygen gas at 298 K initially. The gases react forming NH3(g) ammonia and H2O(l) water. Calculate the number of moles remaining for each gas and the total number of moles of gas. Calculate teh partial pressures for each gas and the total pressure.
suppose a refrigerator is designed based on the joule-thompsoneffect. what characteristics e.g. conduit designtype of
A helium balloon is filled with a volume of 1.5L and has a pressure of 2.5 atm at 50oC. If it is then heated to 150oC, what will the resulting pressure be if the resulting volume is 1.6 L.
Derive an expression for the partition function for a molecule with two states separated by energy hν (i.e. ε1 = 0 and ε2 = hν). If we consider a canonical ensemble of N such molecules, derive expressions for the total internal energy and the heat..
Another solution of the same chemical is measured under the same conditions and has an absorbance of 0.81. What is its concentration?
an evacuated empty 276 ml glass bulb weighs 129.6375 g. filled with an unknown gas the bulb weighs 130.0318 g.
(a) how many protein molecules do you find in the average eukaryotic cell and prokaryotic cell? (b). What is the ratio of protein found within a human heart compared to the prokaryotic cells inhabiting human intestines?
where it is burned with 12% excess air. Calculate the required flow rate of air in SCMH(standard cubic meters per hour).
The Cu-Ni system is an isomorphous one, meaning that the crystal structure does not change with alloying; in particular, Cu and Ni atoms randomly substitute for one another within a FCC crystal structure
Lewis Dot structure and identify molecule shape, the hybridization on the central atom, and whether the molecule is polar or non
1.20.00 ml of 0.100 F Pb(No3)2 (FW 331.2) are mixed with 15.00 ml of 0.125 F Nal (FW 149.9). Lead (II) and iodide form an insoluble salt pbl2 (FW 461.0) Calculate the concentration of each of the remaining ions after mixing. [Pb+2], [i-],[na+],[n0..
When heating the acetone in a water bath, why must there be a hole in the foil cap
A chemist decomposes several samples of water into hydrogen and oxygen and weighs the hydrogen and oxygen obtained. The results are: 1) 1.5g H and 12g O 2) 2g H and 16g O 3) 2.5g H and 20g O.
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