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Polonium (Po) is the merely element known to adopt the simple cubic crystal (scc) system. The atomic radius of polonium, found by x-ray diffraction is 167.5 pm. Define what is the density of polonium?
One molecular form of elemental sulfur is a ring of eight sulfur is a ring of eight sulfur atoms. As one molecule of this element is burned to make sulfur trioxide, how many oxygen molecules are used?
Considering the reaction: SO2Cl2(g) --> SO2(g) +Cl2(g) Kp=2.91 and temp = 298k. the partial pressure of SO2 is 137 torr and the partial pressure of Cl2 IS 285 torr. What is partial pressure of SO2Cl2?
The solution was cooled in an ice-water bath for 10 minutes and pure crystals were obtained. The crystals were filtered on a Hirsch funnel and rinsed with about 0.5 mL of ice-cold ethanol. After drying, the weight of the crystals was found to be 5..
Assuming ideal gas behavior, calculate the mass of (in ) present in the reaction mixture at equilibrium. What is the percent yield of the reaction under these conditions
at 25.0degc a sample of xe gas occupies 531 ml in a piston-cylider apparatus when the external pressure is 337 torr. at
Nitrogen gas when combined with hydrogen gas forms ammonia gas according to the following equation N2(g) + 3H2(g) = 2NH3(g). Delta H(rxn)=-56 kJ. The delta H(rxn) was determined using Hess's Law and the following three related reactions:
Determine the number of moles of O2 produced by the decomposition of 426 g of NaClO3
Dimethyl hydrazine ignites spontaneously upon contact with dinitrogen tetroxide. If 2 mol of dimethyl hydrazine are mixed with 4 mol of dinitrogen tetroxide, and the reaction an 85% yield, how many moles of N2, H2O and CO2 will be produced?
While building a character table struggling with remembering explain how to find the irreducible representation for Rz. Explain how to determine it for x, y and z but not for Rz, Rx or Ry
Which of the intermolecular forces is the most important contributor to the high surface tension shown by water and What is the quantum of light called?
How many grams of methane [CH4 (g)] must be combusted to heat 1.19 kg of water from 25*C to 60*C, assuming H2O (l) as a product and 100% efficiency in heat transfer?
hydrogen is collected over water, two gases are present hydrogen and water vapor.calculate partial pressure of hydrogen gas. Barometric pressure = 773.94 mmhg.
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