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Determine the density and atomic radius of tungsten (W) if it crystallizes in a face centered cubic arrangement with cell edge 399 pm.
How many grams of sulfuric acid, H2SO4, can be obtained from 578 grams of iron ore if the ore is 76.0% FeS The reactions involved are given below. Each reaction is 92.0% efficient.
Determine the number of moles of oxygen that would be needed to completely combust 0.0350 moles of benzene
Calculate the value of the reaction quotient Q. (b) Is the system at equilibrium? If not, predict which way (right or left) the reaction will proceed to reach equilibrium.
Lithium will react with oxygen in a pressurized container to produce solid lithium oxide at 25°C. If 0.125 g Li(s) is placed in a 0.450 L container filled with oxygen at 1.85 atm, determine the final pressure inside the container
How many grams of methanol (CH3OH) must burned to raise the temperature of 1.00 kg H2O from 5.0 Celsius to 90.0 Celsius
In a calorimeter, 10 g of ice absorbs heat with an enthalpy of fusion of 334 J/g. What is the heat absorbed.
Hydrogenation reactions are used to add hydrogen across double bonds in hydrocarbons and other organic compounds. Use average bond energies to calculate DELTA Hrxn for the following hydrogenation reaction:
What is the ratio between HCO3- and HCO3H to produce a buffer with a pH of 6.5? Ka of HCO3H is 7.94 x 10-7.
a system conducts 192 cal of heat to the surroundings while delivering 322 cal of work. what is the change in internal energy of the system (in cal)?
What is the maximum mass in grams of NH3 that can be produced by the reaction of 1.0g of N2 with 3.0g of H2
Name each of the following species for the following acid-base reactions. (The equilibrium lies to the right in each case, i.e., the product side is favored. If the species is an ion, include the word "ion" in the name.
Calculate the concentrations of all species in a 0.530 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
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