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At a certain temperature the equilibrium constant, Kc for this reaction is 53.3- H2(g) + I2(g) <---> 2HI(g); . At this temperature, 0.800 mol of H2 as well as 0.800 mol of I2 were placed in a 1.00-L container to react. Explain what concentration of HI is present at equilibrium?
Determine the concentration of H+ ions in a solution of HCl that was prepared b diluting 50.0 mL of concentrated (11.6 M) Hydrochloric acid to a final volume of 500mL?
Two flasks are connected with a stopclock. The first flask has a volume of 5 liters and contains nitrogen gas at a pressure of 0.75 atm. The second flask has a volume of 8 L and contains oxygen gas at a pressure of 1.25 atm.
A student performs a series of calorimetry experiments. She determines the calorimeter constant (Ccal) for her coffee cup calorimeter. She pours a 50.0 mL sample of water at 345 K into the calorimeter containing a 50.0 mL sample of water at 298 K.
A gas at 250K and 15atm has a molar volume 12% smaller than calculated from the perfect gas law. Calculate (a) the compression factor under these conditions and (b) the molar volume of the gas.
What is the pressure in a 10.0- cylinder filled with 0.455 of nitrogen gas at a temperature of 315
A 5g packet of an effervescing stomach antiacid contains 2.68 g of calcium hydroxide to neutralize stomach acid. What volume of stomach acid (containing 0.010mol/L HCl) could be neutralized
For each of the following reactions, calculate the moles of indicated product produced when 3.00 mol of each reactant is used: a) 4Li(s)+O2(g)-->2Li2O(s) (Li2O). b) Fe2O3(s)+3H2(g)-->2Fe(s)+3H2O(l) (Fe). c)Al2S3(s)+6H2O(l)-->2Al(OH)3(aq)+3H2S(g) ..
A sample of nitrogen N2 has a volume of 300 mL at 34^C and a pressure of 745 mmHg. What is the Volume of Nitrogen at STP
Calcium hydrogen phosphate is a component of plant fertilizers (a source of phosphate). It is a relatively insoluble hydrated ionic compound, CaHPO4·2H2O, with a Ksp of 2.7×10-7 at 25°C
What is the Hydroperoxide formed by air oxidation of diethyl ether. Show Lewis Structure.
Calculate the wavelength of light that would be required to excite an electron from the HOMO to the LUMO. Hint: Recall that (triangle)E=hv=hc/lambda, and that 1 eV=1.602 x 10^-19 Joules.
Explain calcium oxide is produced by thermal decomposition of calcium carbonate. Explain what volume of carbon dioxide can be collected at STP if 126 g of calcium carbonate is allowed to decompose
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