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Calcuate the wavelength (in nanometers) of an electron weighing 9.10939x10^-28g moving at 3.90x10^6 m/s.
A mixture of 0.160 moles of C is reacted with 0.117 moles of O2 in a sealed 10.0 L vessel at 500.K, producing a mixture of CO and CO2. The total pressure is 0.640 atm. What is the partial pressure of CO? 3C + 2O2---> 2CO +CO2
How many grams of CuSO4 5H2O are needed to prepare 100 ml of a .15 m solution CuSO4
Formalin is an aqueous solution of formaldehyde, HCHO, used as a preservative. How many grams of formaldehyde must be used to prepare 2.5 L of 12.3 M solution
Multiple choice questions in nuclear chemistry - which equation represents the balanced nuclear equation
sample of a gas at 25.0 oC and at a pressure of 3 atm, what will the pressure be if the temperature is raised to 50.0 oC?
Provide a structure for the following compound: EI mass spectrum: two molecular ions of about equal intensity at m/z = 180 and 182; IR: 1740 cm-1; 1H NMR: 1.30 (3H, t J = 7 Hz); ? 1.80 (3H, d, J = 7 Hz); ? 4.23 (2H, q, J = 7 Hz); ? 4.37 (1H, q, J ..
A reaction has a standard free-energy change of -12.30 kJ mol-1 (-2.940 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °C.
The atmosphere becomes colder at higher elevation. As an average the standard atmospheric absolute temperature can be expressed as Tatm = 288 - 6.5 × 10?3 z, where z is the elevation in meters.
In an experiment 1.550g of mercury oxide decomposed to give oxygen gas and 1.435g of liquid mercury. What is the empirical formula of mercury oxide
a particular sample of rainwater is 0.2 ppb. Assume the density of rainwater is close to 1.00 g/mL and find the molar concentration of C20H42.
The molecule, atracurium, is a very complex drug. Atracurium exhibits a very short half-life (20-min). The products of the fastest inactivation process are shown.
calculate the ionization energy of xenon , given that the energy of a photon of this light is 1.95 x 10^18 J (I calculated that from the given wavelength of 102 nm). now how do i calculate the ionization energy in kJ/mol for xenon
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