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You have a gas cylinder, the weights on the piston weight 3kg. The radius of the piston is 40cm. Calculate the pressure of the gas in pascals in atmosphere.
If 500 g of KCIO3, decomposes and produces 303 g of KCl, how many grams of O2 are produced?
Which two reagents below would you choose to synthesize 3-ethyl-2-phenyl-2-pentene using the Wittig procedure? (triphenylphosphine, solvents, and a base are provided)
Describe the molecule xenon trioxide, XeO3, using four possible Lewis structures, one each with zero, one, two, or three Xe-O double bonds.
A solution of ethanol (C2H5OH) in water is prepared by dissolving 56.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 255.0 mL of solution. What is the molarity of the ethanol in this solution?
calculate the number of grams of acetic acid per 10ml of the vinegar. Since vinegar has a density of about 1.00 gram/ml, 100 ml eighs about 100 g.
A 0.451 M solution of a weak acid, HA, has a pH of 4.01. Calculate Ka for the acid. Use E notation and 3 significant figures.
Calculate the change in enthalpy of reaction for two moles of CO(g) reacting with one mole of O2 (g) to form CO2(g). The molar heats of formation for each of these gases are CO -110.5 KJ/mol,
Converting liquid H2O to solid ice releases 1.44 kcal/mol. How many k/cal are released by freezing 1.4 mol of H2O?
The best Lewis structure for sulfuric acid has zero formal charges, sulfur as the central atom, and no bonds between S and H. How many single and double bonds, respectively, are there in this Lewis structure
What happens to the interference pattern that results from the diffraction of electrons passing through two closely spaced slits if the rate of electrons going through the slits is decreased to one electron per hour
A 20.0-L nickel container was charged with 0.835 atm of xenon gas and 1.44 atm of fluorine gas at a 400 degrees C. the xenon and fluorine reacts to form tetrafluoride. what mass (G) of xenon tetrafluoride can be produced assuming 100 percent yield..
For an ensemble consisting of a mole of particles having two energy levels separated by 1000. cm-1, at what temperature will the internal energy equal 2.90kJ?
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