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A compound composed of iron and carbon monoxide, Fe x (CO) y, is 30.70% iron. What is the empirical formula for the compound
A saturated solution of MgF2 has [Mg^2+] = 2.6 X 10 ^-4 M and [F-] = 5.2 X 10 ^-4 M. What is the value of Ksp for MgF2
For the following changes, determine if the equilibrium would (L) shift left, (R) shift right, (N) have no effect. H20(g)+C(s)<---->CO(g)+H2(g)
Gases azomethane decomposes in a first order reaction when heated: CH3NNCH3 --> N2 + C2H6. The rate constant is 0.0216 min-1. If the initial quantity of azomethane in the flask is 2.00 g, how muc
Calculate the composition of the vapor (mole fraction of each component) that is in equilibrium in the solution at the boiling point of this solution
Calculate the half life of N2O5 and B. how long does it take for the N2O5 concentration to drop one tenth of its original value. * I believe the half life is 10,000 seconds for part A. But I am havi
If a vessel containing NO2 has an initial concentration of 2.8 x 10-2 mol/L, how long will it take for 75 of the NO2 to decompose? The decomposition of NO2 is second order in the reactant and the ra
for which amino acid does the L-isomer not correspond to its S-isomer? Explain why, including stereochemical diagrams of the isomeric formas
Using the van der Waals equation, calculate the pressure of 59.5 g of NH3 in a 5.20 L container at 47°C. The van der Waals constants for NH3 are: a = 4.17 L2xatm/mol2, b = 0.0371 L/mol.
Transition metals can combine with carbon monoxide (CO) to form compounds such as Fe_x_(CO)_y. Assume that you combine 0.125 g of nickel with CO and isolate 0.364 g of Ni(CO)_x. What is the value o
A piece of dry ice (solid carbon dioxide) with a mass of 28.5 g is allowed to sublime (convert from solid to gas) into a large balloon. Assuming that all of the carbon dioxide ends up in the balloon
A gas has a volume of 2.84 L at 1.00 atm and 0oC. At what temperature does it have a volume of 7.50 L at 520 mmHg
A closed container is filled with oxygen. The pressure in the container is 375kPa . What is the pressure in millimeters of mercury
A 45.9-mL sample of gas in a cylinder is warmed from 22 C to 80 C. What is its volume at the final temperature? (Assume constant pressure.)
Assuming that all of the carbon dioxide ends up in the balloon, what will be the volume of the balloon at a temperature of 24 C and a pressure of 758 mmHg
Use the molar volume of a gas at STP to determine the volume (in L) occupied by 15.1 g of neon at STP.
Calculate the [H+] and pH of a solution made by mixing 30.00mL of 0.238 M CH3COOH with 30.00mL of 0.250 M CH3COONa. (Ka for acetic acid = 1.8x10^-5)
5.00 moles of CO2(g) is in a rigid container with a volume of 3.00 liters. The initial temperature is 291 K and the initial pressure is 33.3 bar. Then 4.95 kJ of energy is added to the gas as heat;
A system consists of 6.00 moles of benzene. It is initially at a temperature of 76.0°C, a pressure of 0.878 bar, and a volume of 534.7 cm3. Calculate the volume of the system at the end of this
What is the mole fraction of solute and the molal concentration for an aqueous solution that is 10.0% NaOH by mass
Why does the color of a precipitate change from the color of the original solution. For example, if copper sulfate is blue, why is it's precipitate white
The handling of sodium bicarbonate is difficult due to the release of co2 during the adjustment of the pH, why can't other bases known be be easy to handle such as sodium hydroxide be used
ALso suppose that an equal Vmax is possible with both of the substrates. Which substrate will show a greater rate of rection at 1 x 10^-3 M. Which substrate will show a greater rate at 1 x 10^-2 M.
Which of the following is (are) formed in the reaction between propyl hexanoate and methylamine. (must select all products which are formed in this reaction)
The intramitochondrial concentration of malate under some conditions is 0.22 mM and the NAD+/NADH ratio is 20. Calculate the maximum intramitochondrial concentration of oxaloacetate under these cond