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Magnesium oxide can be made by heating magnesium metal in the presence of the oxygen. The balanced equation for the reaction is
2Mg(s)+O2(g)→2MgO(s)
When 10.0 g Mg is allowed to react with 10.6 g O2, 11.8 g MgO is collected.
Determine the theoretical yield for the reaction.
Determine the percent yield for the reaction
What is the rate constant for the reverse reaction at the same temperature?
The molar mass of unknown gas was measured by effusion experiment. it was found that it took 57s for the gas to effuse, whereas nitrogen gas required 48s. what is the molar mass of the gas
question the combustion of liquid ethanol c2h5oh produces carbon dioxide and water. after 5.6 of ethanol density 0.789
Microwave ovens emit microwave energy with a wavelength of 12.6 cm. What is the energy of exactly one photon of this microwave radiation
A student takes 195. g of BaCl2, and reacts it according to the following equation: 3BaCl2 + Al2(SO4)3 → 3BaSO4 + 2AlCl3 How many moles of AlCl3 are formed?
A 0.7995 g sample of a compound containing only uranium and chloride is dissolved in water and excess aqueous silver nitrate is added to precipitate 0.9982 g of silver chloride . Calculate the empirical formula of the compound.
A flask contains 0.260 mol of liquid bromine, Br_2. Determine the number of bromine molecules present in the flask.
Nitrogen oxides, NOx, play an essential role in the production of pollutants found in photochemical smog. The NOx in the atmosphere is slowly broken down to N2 and O2 in a first order reaction.
Question- Propane gas C3H8 w/volume 1.80L at 25C and 1.65atm was mixed with oxygen gas w/volume of 35.0L at 31C and 1.25atm. The mixture was then ignited to form carbon dioxide and water.
Choose the metal that is produced by electrolysis of its molten chloride salt. a) Li b) K c) Al d) Ca e) All of the above
Given the following data H Cl bond enthalpy = +431 kJ/mol, ?Hf HCl(g) = -92.31 kJ/mol
For the gas phase decomposition of C2H5Cl, a graph of ln t versus 1 / T produced a straight line with a slope of 2.98 × 104 K. What is the activation energy for this reaction
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