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The Ksp value for ferrous hydroxide is 1.6 x 10/\-14. Calculate the molar concentration of ferrous ion (Fe2+) in an aqueous solution that has been buffered to maintain a pH of exactly 10.00 and is saturated with Fe(OH)2.
When a metal was exposed to light at a frequency of 4.54× 10^15 s-1, electrons were emitted with a kinetic energy of 3.10 × 10^-19 J.
You use 27.5 mL of NaOH to titrate 100.0 mL of HCl and 18.4 mL of NaOH to titrate 50.0 mL of 0.0782 M H2SO4. What are the concentrations of the HCl and NaOH respectively?
calculate the standard enthalpy change for this reaction using standard enthalpies of formation. general chemistry 10th edition ebbing and gammon
Write the name and formula of 10 substances that you would not be appreciably soluble in water.
Calculate the energy change for the reaction K(g) + I(g) → K+(g) + I- (g) given the following ionization energy (IE) and electron affinity (EA) values. IE K = 419 kJ/mol, IE I = 1010 kJ/mol; EA K = 48 kJ/mol. EA I= 295 kJ/mol
Compute the internal energy change if an ideal gas expands from a volume of 2.3 L to 6.4 L against a pressure of 1.8 atm and 330 J of heat are transferred from the surroundings to the system.
Calculate the volume of concentrated sulfuric acid, containing 98% H2SO4 by mass, that would contain 40.0 g of pure H2SO4.
Using curved arrows, show how the species in part (a) can act as Lewis bases in their reactions with HCl, and how the species in part (b) can act as Lewis acids
A sample consisting of various gases contains 3.1 X 10^-6 mole fraction of radon. This gas at a total pressure of 31atm is shaken with water at 30 degree celcius.
The dispersion of a diffraction grating, such as the one shown at the right, is the angle of separation per ?m of wavelength. It depends on the order of the diffraction (n),
A sample of nitrogen gas, N2 is collecyed in a 100 mL container at a pressure of 688 mm Hg and a temperature of 565 degress celsius. How many grams of nitrogen gas are present in this sample.
if equal masses of N2 and H2 (7.00 grams each) are combined to produce ammonia NH3, how many grams of ammonia could be produced at maximum yield?
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