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Combustion of 30.04 g of a compound containing merely carbon, hydrogen and oxygen produces 51.12 g CO2 and 28.45 g H2OExplain what is the empirical formula of the compound?
A. C3H8O2
B. C3H8O3
C. C4HO4
D. C6H16O4
A reaction has a standard free energy change of -12.8 kJ mol^-1 (-3.059 kcal mol^-1). Calculate the equilibrium constant for the reaction at 25 degrees celcius.
Assume that you found that the average volume of water required to fill the graduated cylinder to the 8.00 mL mark was 7.75 mL. What is the percent error
being used as a membrane to purify nitrogen. if the flux of nitrogen through the member is 8.2*10^-7 kg/m^2-s, what is the production rate of nitrogen in g/h?
in the manufacturing of computer chips cylinders of silicon arecut into thin wafers that are 3.00 inches in diameter
required to exactly titrate the Fe2+ in a sample. How many moles of Fe2+ were in the sample?
The equation for the energy of the electron in the hydrogen atom is given in your text(s) as E= - 2.18 x 10^-18J x (1/n_f^2 - 1/n_i^2). However the actual equation
What is the desity of Osmium if 50.6 gram occupy 2.23 ml. What is the volume of the same mass of Aluminum if the density if 2.70grams/cm3
what is the proper technique to measure the temperature of a liquid in a beaker with a thermometer?
Explain an ionic equation has 2H (aq) on the left side and H2 (g) on the right. Are these species spectators. Define why
determine the molarity of the solution if 3.00 grams of ammonium sulfate is dissolved in enough h2o to form 300. ml of
A chemist prepares a solution by dissolving 4.168 g of NaNO3 in enough water to make 200 mL of solution. What molar concentration of sodium nitrate should appear on the label.
A container of nitrogen gas has a volume of 82.0 L at a temperature of 303 K. If the container is heated to a temperature of 369 K while remaining at constant pressure, what is the new volume of the gas
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