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Draw a six-carbon-chain portion from syndiotactic polypropylene, in which the groups lie on alternating sides of the plane of the computer screen. represents the continuation of the polymer chain.
What volume of pure oxygen gas (O2) measured at 546 K and 1.00 atm is formed by complete dissociation of 0.7 mol of Ag2O?
What is the percent yield of a reaction in which 244 g phosphorus trichloride reacts with excess water to form 144 g HCl and aqueous phosphorus acid (H3PO3)?
In an experiment, a piece of copper is weighed 40.0 g and allowed to react with oxygen. {rm 2Cu}(s) + {rm O_2}(g) to {rm 2CuO}(s) How many grams of {rm CuO} could be produced according to the equation
The electron in the n = 5 level of a hydrogen atom emits a photon with a wavelength of 1280 nm. To what energy level does the electron move?
A steel cylinder holds 150.0 mol argon gas at 25 degrees C and a pressure of 9.53Mpa. After some argon has been used, the pressure is 2.00Mpa at 19 degrees C. What mass of argon remains in the cylin
Assuming the reaction is first order, when equal volumes of the two solutions are mixed, what is the initial rate at 40oC?
A furniture factory needs 31.5 ft2 of fabric to upholster on a chair. Its Dutch supplier sends the fabric in bolts of exactly 200 m2. What is the maximum number of chairs that can be upholstered by
A gas is contained in a 5.0 l container at a pressue of 100kPa. What size container would be required to contain the gas at a pressure of 50 kPa, Assuming constanat tempature?
What is the molecular mass of met-enkephalin if 20.0 of an aqueous solution containing 15.0 met-enkephalin at 298 supports a column of water 32.9 high?
The dry ice is allowed to sublime (convert from solid to gas) and the mixture is allowed to return to 25.0 C. What is the total pressure in the flask?
Calculate the final concentration of each of the follwing; 0.50 L of a 4.0 M HNO3 solution is added to water so that the final volume is 8.0L ( I dont want the answer I would like to know how to do
What is the radius of the cross section of a cylinder that has a volume of 644.0 m3 and a height of 12.6 m? (Volume=πr2×height)?
a nitrogen molecule is confined in a cubic box of volume 1.00m^3. assuming that the molecule has an energy equal to 3/2kT=300K, what is the value of n=(n(subx)^2+n(suby)^2+n(subz)^2)^(1/2) for this
How does the lewis acid play a role in the mechanism? If it bonds to the double bond O in dimedone, then what is the leaving group during elimination?
The density of liquid water at 0 degrees C is 0.9987 g/cm cubed; the density of ice at this same temperature is 0.917 g/cm cubed. Calculate the volume occupied at 0 degrees C by 100. g of liquid wat
Calculate the concentrations of all species in a 1.62 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1=1.4x10^-2 and Ka2=6.3x10^-8.
At equilibrium, the flask containing the reacting mixture contains 232 torr CO, 1240 torr Ni(CO)4, and 1.82 g Ni at 510°C. What are the Kc and KP for this reaction.
Compounds like {rm CCl_2F_2} are known as chlorofluorocarbons, or {rm CFCs}. These compounds were once widely used as refrigerants but are now being replaced by compounds that are believed to be les
calculate the mass of coal (in grams and metric tons) that will be burned in 1 year of operation (1 metric ton = 1 X 10 to the 3rd power kg = 1 X 10 to the 6th power g).
Under standard conditions, what is the maximum electrical work, in joules, that the cell can accomplish if 67.0 g of Sn is consumed?
How many moles of HNO3 are present in 34.8 mL of a 2.20 M solution of nitric acid?
An automobile gasoline tank holds 49kg of gasoline. When the gasoline burns, 172kg of oxygen are consumed and carbon dioxide and water are produced.What is the total combined mass of carbon dioxide
If you make a mistake and deliver less than 50.00 mL of HCl to the Erlenmeyer flask, what effect will this have on the calculation for the acid-neutralizing ability of the antacid?
2 HCl (aq) + Mg(s) <--> MgCl2 (aq) + H2 (g) + heat. When the temperature is increased in the system referenced above, the equilibrium point will shift in which direction of the equation (reac