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At 762.0 torr a mouse is placed in a sealed chamber with air. This chamber is equipped with the enough solid KOH to absorb any H2O and CO2 formed by the mouse.
Vaporization of 255.0 mg of the compound in a 160-mL bulb at190 degrees C gives a pressure of 435.0 torr. An analysis is performed on an organic liquid with a fishy odor. Calculate the molar
At 253.0 °C and 1.8 atm, 310.0 mL of the vapor has a mass of 1.252 g. Calculate the molar mass of the compound? Analysis of a volatile liquid shows that it contains 2.04 percent hydrogen, 24.79
Determine at what mass of potassium chlorate is needed to supply the proper amount of oxygen required to burn 71.06 g of methane (CH4)
Measurements of argon gave C = 1200. cm6 mol-2 and B = -21.7 cm3mol-1 at 273 K where B and C are the second and third viral coefficients in the expansion of Z in powers of 1/Vm.
OHaganBooks.com's stock was doubling in value every 5 hours. If you purchased $10,000 worth of stock when it was first presented, how much was the stock worth after 8 hours?
Determine the equilibrium constant, Keq for the balanced chemical reaction given below. The initial concentrations of [H2] = 8.00, [NH3]= 0.00 and [N2] = 4.00; at equilibrium the concentration of
Calculate the average atomic mass of M when M2S3 is heated in the air, it is converted to MO2 and a 4.000g sample of M2S3 shows a decrease of mass of .277g when it is heated in the air.
State of entire page as function of width of page, w. Find domain of area function? Find dimensions of page so that least amount of paper is used.
Calculate the molar mass of the hydrocarbon? Calculate the formula of the hydrocarbon when a mixture of exactly two moles of helium (He(g)) and one mole of a hydrocarbon of formula CnH2n(g) is place
Calculate the increase in pressure that at 0.620 bar results from a temperature increase of 10.0 K in a 1.00 L container that contains0.0273 mol of gas.
A chemical engineer has 20.0 L tanks H2 and of O2 and wants to use up both tanks to form 24.0 mol of water at 23.8 degrees Celsius to study a key fuel-cell reaction.
Calculate the total pressure and partial pressure of each gas in the vessel when the sulphur dioxide is used to make the sulphuric acid. One method of forming it is by roasting mineral sulphides.
In a boiling water bath a 192-g piece of copper was heated to 100.0 oC and then put into a beaker having the 750.ml water which is having the density=1.00g/cm3 at 4.0oC.
Write down a balance equation for the reaction that occurs among the solutes. Determine the concentration of each ion remaining in the solution.
State distance between cars as the function of time t, where t is measured starting when car B passes point O. Find domain of distance funstion? How far apart are cars 2 hours after car B passes poi
Determine the percent by mass of calcium carbonate in rock, suppose that is the only substance reacting with HCI solution. A sample which is having 1.248 g of limestone rock is pulverized and then t
Determine the pH of a solution prepared by mixing the2.50 g of hypobromous acid, HOBr and .750 g of KOH in the water where Ka HOBr = 2.5x 10^9
Assume a world population of 6 billion. If you had a mol of U.S. dollar bills and equally distributed the money to all of the people of the world, discuss how rich would every person be?
Determine the frequencies and wavelengths of the four Lyman spectral lines of the lowest energy for hydrogen atom.
At 78 C Solubility in ethanol is 2.40g/100.00 mL and at 0 C 0.86g/100.00 mL. Explain what volume of hot ethanol will be essential to dissolve 50.00 mg of cholesterol?
Explain how much of calcium chloride (CaCl2, MW= 111g/mole) are needed to prepare 2000 ml of a solution with the same equivalent concentration of Ca2+ to human plasma.
What weight of water would be essential to carry over 1 g of toluene if a mixture of toluene and water is distilled at 97 degrees Celsius?
An ideal solution which is having of 9.0 g of liquid Y, whose molar mass is 30.0 g/mol and 10.0g of liquid X, whose molar mass is 50.0 g/mol. The vapor pressure of pure X and pure Y at 20 degrees Ce
A ground-state H atom absorbs a photon of wavelength 94.91 nm, and its electron attains a higher energy level. The atom then emits two photons: one of wavelength 1281 nm to reach the ground state an