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One of the nobles gase of group was isolated in 1894 by allowing a large volume of air to react with magnesium so that the only noble gas, contaiminated with tracs of other noble gases, remainded A 32.0 mL sample of this gas weighed 0.054 g at 9.0 degrees celcius and 748 torr. Determine the apparent molecular weight of this monatomic gas. The traces of the other gases are negiligble.
Which gas it is?
19.9 g/mol; He
39.7 g/mol;Ar
20.1 g/mol; He
39.8 g/mol; Xe
83.4 g/mol;Kr
describe the mechanism for the reaction of bromine to Ethene and state the type
A weighing dish containing an impure sample of benzoic acide was found to weigh 12.35g. the weighing dish weighs 8.22g. The impure benzoic acid was recrystallized and thoroughly dried. The recrystallized benzoic acid weighed 2.48g. What is the per..
What is the overall order of the reaction? b.What is the order with respect to X?To Y? c.In a reaction
Compute the change in temperature when 1.8 g of sodium chloride is dissolved in 300.0 mL of water initially at 20C. The heat capacity of water is 4.184 J/mL/K.
Discuss the difference between Mass Spectroscopy, Nuclear Magnetic Resonance,
The molecular weight of vincristine, a pharmaceutical drug, is 923.04. It is supplied in 1 mg per vial. You want to treat your culture cells with a final concentration of 5 hM vincristine and will need 30 ml of cells for your experiment
Assume a wind turbine with a hub 50 meters above the ground, a rotor diameter of 75 meters and a wind-conversion efficiency of 25 percent.
Metal X was plated from a solution containing cations of X. The passage of 48.25 C deposited 31 mg of X on the cathode. What is the mass of X (in grams) per mole of electrons.
decomposes according to the above equation, calculate the concentration of O2 at equilbrium.
What causes the colors of these complexes? How do these colors relate to the expected positions of these ligands in the spectrochemical series?
If the initial pressure of iodoethane is 894 torr at 245°C, what is the pressure of iodoethane after three half-lives?
The Ogallala aquifer is the largest in the United States, covering 450,000 across eight states, from South Dakota to Texas. This aquifer provides 82% of the drinking water for the people who live in this region
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