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Question - 50 mL of O2 was collected over water at 25oC and 748mmHg. What is the volume of the gas at STP? (The vapor pressure of water is 23.8mmHg)
Write your solution in appropriate format and provide references
calculate the energy of an electron in the hydrogen atom when n=2 and when n = 6. Calculate the wavelength of the radiation released when an electron moves from n=6 to n=2. Is this line in the visible region of the electromagnetic spectrum
An acid solution is 5.00% HCl by mass. Assuming that the density of the solution is 1.0 g/mL, find the molarity of the hydrogen ion in the solution. The molar mass of HCl is 36.5 g/mol
Calculate the potential delivered by a voltaic cell using the following reaction if all dissolved species are 2.5 x 10 -2 M and the pressure of H2 is 1.0 bar.
total ion concentration what conductivity should be observed for 0.050 M Na2SO4?
Determine which of them exhibit resonance. (In other words, which of the following molecules exhibit resonance? Note: there is more than one answer and you must choose all of the molecules in the list that exhibit resonance.)
Show that the species Co^3+ (aq) will spontaneously decompose to CoO2 (s) and Co^2+ (aq) at PH 0 the question need to solve for the potential at both pH of 0 and pH of 5 to prove that at pH of 0 the cobalt will decompose spontaneously, but at pH o..
In our world, starch is a polymer formed from a songle monomer unit, D-glucose. How would starch in a mirror image land differ from our starch and draw the structure of the monomer unit.
Consider the following reaction. N2(g) + 3H2(g) > 2NH3(g) The initial pressures of the H2 IS 3 atm and the pressure of the N2 IS 2 atm. Which statement is true? N2 is a limiting reagent H2 is a limiting reagent Neither gas is a limiting reagent
a particular gas exerts a pressure of 785 mmHg. what is this pressure in units of Atmospheres
anthraquinone contains only carbon hydrogen and oxygen. when 4.80 mg anthraquinone is burned 14.2 mg co2 and 1.65 mg
A piston exerting a pressure of 1.00 atm rests on the surface of water at 25 degrees C. The pressure is reduced reversibly such that 10.0 g of water evaporated and adsorbed 22.2 kJ of heat. Calculate w, q, change in U and change in H.
hammered into a thin sheet to be used as aluminum foil. If the thickness of the aluminum foil is uniformly 13 um, what area of aluminum foil (in cm^2) can be made? The density of aluminum metal is 2.969 g/cm^3.
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