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Explain A rigid 8.20 L flask contains a mixture of 2.50 moles of H2, 0.500moles of O2 and sufficient Ar thus that the partial pressure of Ar in the flask is 2.00 atm. The temperature is 127 degrees Celsius.
The mixture in the flask is ignited by a spark as well as the reactions represented below occur until one of the reactants is completely consumed.
2H_2(g) + O_2 (the arrow goes here) 2H_2O (g)
Give the mole fraction of ALL species present in the flask at the end of the reaction
Rearrange the equation discovered by Balmer to solve for n2 (get n2 by itself): 1/? = R(1/2^2 - 1/n^2) where: ? = is the wavelength of the photon (E=hc/?) R = Rydberg's constant (1.0974x10^7 m^-1) n1 and n2 are integers where n2 > n1.
Write the balanced reaction equation for the precipitation of calcium carbonate from potassium carbonate and calcium chloride.
compound noradrenaline contains 56.79% C, 6.56% H, 28.37% O, and 8.28% N by mass. What is the empirical formula for noradrenaline?
Deviations from the ideal gas law are greater at A) low temperatures and low pressures. C) high temperatures and high pressures. B) low temperatures and high pressures. D) high temperatures and low pressures.
a sample weighing 25g starts at 99 degrees celsius. it is put in a calorimeter containing 100g water. the water
complete the following reaction 207pbgamman and calculate the q value in mev. what is the maximum threshold wavelength
the temperature remains constant, and the pressure on the oxygen is decreased to one third the original pressure, what is the new volume
What is the composition in mole fractions of the gas mixture that is expelled? The solubilities of CH4 and C2H6 at 20 degrees celcius and 1 atm are .0175 g/L H20 and .059g/L H2O, respectively.
Draw all possible resonance structures and label if they are minor, major resonance contributors and draw the resonance hybrid.
The calcium compound that precipitated was measured to be 18.9 milligrams. Determine the grams of the element calcium in one Liter of water.
if a 1.22 g piece of gold is hammered into a sheet whose area is 32.4 ft2 what is the average thickness of the sheet?
When electrons in a molecule are not found between a pair of atoms but move throughout the molecule, this is called
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