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A certain substance has a heat of vaporization of 34.75 kJ/mol. At what Kelvin temperature will the vapor pressure be 4.00 times higher than it was at 289 K?
Predict whether a precipitation reaction will occur when aqueous solutions of ammonium sulfate and calcium acetate are mixed. Write the net ionic equation.
you wish to make a 0.355 m hydrobromic acid solution from a stock solution of 3.00 m hydrobromic acid. how much
Calculate the values of Avogadro's number and the Faraday assuming the charge in an electron is 1.602 x 10^-19 coulombs/electron. Also calculate the mass the magnesium anode have lost during the process.
Germanium forms a substitutional solid solution with silicon. Compute the weight percent of germanium that must be added to silicon to yield an alloy that contains 4.43 × 1021 Ge atoms per cubic centimeter
Calculate the maximum wavelength of light with sufficient energy to dissociate a diatomic chlorine molecule into chlorine radicals.
Use bond dissociation energies to determine how much energy can be generated per mole of iso-octane.
What is the mole fraction of solute and the molal concentration for an aqueous solution that is 10.0% NaOH by mass
Explain the order of elution you would observe while performing gas chromatography during an elimination/dehydration process on 2-butanol. What property of the product molecules seems to be the most important in determining the relative retention ..
when al metal reacts with hbr aluminum bromide and hydrogen gas are formed. if you started with 3.75 g of aluminum and
An empty flask weighs 252.2 grams. When filled with water ( d= 1.00 g/cm3) the flask and its contents weigh 591.8 g)
What is the molar mass of a gas if 0.358 g of the gas occupies a volume of 186 mL at 5.00C and 1.10 atm.
Would you expect to recover 100% of the desired compound from an impure sample using solution recrystallization?
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