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Calculate the ideal solubility of anthracene in benzene at25°C. The enthalpy of fusion of anthracene is 28.8 kJmol-1 and its melting point is 217°C.Solubility in g anthracene per kg benzene =
The vapor pressure of is 100 at 5.4, and the normal boiling point is 56.8 . what is enthalpy in vaporation in kj/mol?
in flushing and cleaning columns used in liquid chromatography to remove adsorbed contaminants a series of solvents is
Determine How much sodium hydroxide (in grams) is required to form 546 mL of solution with a pH of 10.00?
what is the conjugate base of HPO4^2-? c)which acid has the weaker conjugate base? d)which acid has the stronger conjugate base? e)which acid produces more ions
If 545 mL of oxygen gas is collected at 21°C and 745 mmHg , what is its volume at STP?
calculate the mass of the sodium. The vapor pressure of water is 23.8 mm Hg at 25.0°C. Use molar masses with at least as many significant digits as the data given.
How many water molecules are in a block of ice containing 1.50 mol of water (H_2O)?
To melt an ionic solid, energy must be supplied to disrupt the forces between ions so the regular array of ions collapses. If the distance between the anion and cation in a crystalline solid decreases
Are the values of Km and Vmax obtained from LinearWear Burk Plot larger or smaller than those obtained from Michaelis Menten Plot. Explain why
a) Write the balance equation for the reaction. b) How many moles of O2 are needed to completly react with 4.0 mol of C2H6O? c) If a car produces 88 g of CO2, how many grams of O2 are used up in the reation
the first ionization energy of bismuth is erm i1 703 rm kjmol. what is the longest possible wavelength of light that
calculate the number of grams of nitrogen dioxide gas formed when 1.22 moles of ammonia nh3 react with 2.14 moles of
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