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The energy involved when an electron is added to a gaseous atom of an element is called: a)ionization energy b)lattice energy c)electronegativity d)electron affinity?
Using Wien's law, calculate the temperature a star must have for the peak wavelength of its blackbody curve to equal this value.
A water sample is found to contain 23ppm iodine(I). If you drank 1399mL of this water, how many moles of Iodine(I) would you ingest
what is the osmotic pressure of a homogenous solution at the temperaturenbsp at 25oc as this solution is consisting of
What is the pKa for the acid HA if a solution of 0.65 M HA and 0.85 M NaA has a pH of 4.75?
a mixture of 0.600 mol of bromine and 1.600 mol of iodine is placed into a rigid 1.000-l container at 350degc.br2g i2g
What is the percent ionization of a solution prepared by dissolving 0.0223 mol of chloroacetic acid, HC2H2O2Cl) in 1.80 L of water?
Using Heisenberg's uncertainty principle, calculate the uncertainty in the position of a 1.60 - mg mosquito moving at a speed of 1.50 m/s if the speed is known to within +/- 0.01 m/s.
assuming zinc is the limiting reagent, how much zinc (in grams) do i need to fill a 1.0 liter balloon with hydrogen gas at a temperature of 25 degrees celcius and a pressure of 780 mmHg
An empty Erlenmeyer flask weighs 215.7 g. When filled with water (d = 1.00 g/cm3), the flask and its contents weigh 515.4 g.
When 3.00 mol of benzene is vaporized at a constant pressure of 1.00 atm and at its normal boiling point of 80.1 degreesC, 101.8 kJ are absorbed and the P(delta)V for the vaporization process is equal to 8.70 kJ then
Discuss the common-ion effect by comparing the solubility of CaCO3 in 3.0 x 102 ml of water and in the presence of 0.015 mole of Ca(NO3)2.
Conversion of aqueous formaldehyde to methylene glycol? Assuming that you have formaldehyde, CH2O, fully solubilized in water at a temperature of 200 degrees F, is the first order and natural reaction
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