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What pressure would have to be applied to steam at 365°C to condense the steam to liquid water (H vap = 40.7 kJ/mol)?
Estimate the molar heat of vaporization of a liquid whose vapor pressure doubles when the temperature is raised from 85 ºC to 95 ºC.
WJCI operates at a frequency of 1460. kHz. What is the minimum height (m) of the antenna that WJCI (sports radio) must have?The speed of light, c, is 2.998 x 108 m/s.
A 0.5212 g sample of an unknown monoprotic acid was titrated with 9.96 X 10^-2 M NaOH. The equivalence point of the titration occurs at 23.92 mL. Determine the molar mass of the unknown acid.
London dispersion forces are weak intermolecular forces that work to attract both polar and nonpolar molecules to one another via instantaneous dipole moments. These are extremely short-lived fluctuations in the distribution of electrons around an..
Compute the number of electrons in a flake of pure gold valued at $0.22. Assume that the price of gold is $1487.0/troy oz. (1 troy oz = 31.1 g)
Describe an experiment using only hot and cold water that would enable you to verify that the heat capacity of your coffee cup calorimeter is about 1.0 x 10-1 J/oC
What is the pH of 0.185M sodium phenolate (C6H5ONa), the sodium salt of phenol (Ka= 1.0 X 10-10)
How is HCl a base if it has no OH ions in is formula to omit when dissolved? Where does it's O come from
Formic acid, HCHO2, is a convenient source of small quantities of carbon monoxide. When warmed with sulfuric acid, formic acid decomposes to give CO gas
Given the following equilibrium constant at 25 C, calculate the equilibrium constant for the unknown reaction below.
sample of this compound is combusted in excess oxygen and the products are 2.492 g of CO2 and 0.6495 g of H20. Determine the empirical formula of the active ingredient.
Calculate the molar mass (g/mol) of a gas whose root mean square speed is 796 m/s at 512 K.
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