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Calculate the molar kinetic energy (in joules per mole) of a sample of Ne(g) at (a) 25.00 degree C and (b) 26.00 degree C
What volumes of COsub2 and NHsub3 a 200. atm and 450. degree C are needed to produce 2.50kg of urea, assuming the reaction goes to completion
You heat the gas until the root mean square speed of the molecules of the sample has been doubled. What will be the final pressure of the gas
The first ionization energy of Ca is 590 kJ/mol and its second ionization energy is 1145 kJ/mol. The heat of sublimation of Ca is 178 kJ/mol. The bond energy of Br2 is 193 kJ/mol, the heat of vapori
Draw the expected d-orbital splitting for the d-orbitals in a trigonal planar complex ion. Assume the z-axis is perpendicular to the plane of the complex. In a couple of sentences, explain the logic
Estimate the temperature needed to achieve the fusion of deuterium to make an alpha particle. The energy required can be estimated from Coulomb's law
A gaseous fuel mixture stored at 752 mmHg and 298 K contains only methane and propane . When 11.6L of this fuel mixture is burned, it produces 767kJ of heat methane : 890 kJ/mol propane : 2,220 kJ/m
Solid ammonium chloride, NH4CI reacts with solid sodium hydroxide to produce ammonia gas, water and sodium chloride NaCl
What is the maximum number of grams of NH4SCN (s) that can be prepared from 9.00 g of CS2 (L) and 3.00 g of NH3 (g). The reaction is CS2 (l) + 2 NH3 --> NH4SCN (s) + H2S (g)
Use Coulomb's law to calculate the ionization energy in of an atom composed of a proton and an electron separated by 185.00 pm
What is the wavelength of light in unites of nm emitted when the elctron in a hydrogen atom undergoes a transition from level 7 to level 1
Calculate the velocity (in units of m/s) of an electron having a mass of 9.09 x 10 -28 g and wavelength of 99.9 nm
A 24.9 mL volule of nitric acid reacts completely with 55.0 mL of aqueous sodium sulfide. The Reaction is 2 HNO3 (aq) + Na2S (aq) --> H2S (g) + 2 NaNO3 (aq) The volume of H2S(g) formed is 141 mL
A 2.56 g sample of a colorless liquid was vaporized in a 250mL flask at 121*C and 786 mmHg. Determine the molecular weight of the liquid
The following questions concerning electrolysis of molten sodium hydride (NaH), the products are Na(?) and H2(g). Which of teh following statement(s) is (are) correct
Which of the following statements are correct based on the voltaic cell represented below Ni(s)INi2+(1.0M)II Fe3+(0.10M)IFe2+(1.0M) I Pt(s)
What is the pH of a solution prepared by mixing 25mL of .10M CH3CO2H with 25 mL of .010M CH3CO2Na? Assume that the volume of the solutions are additive and that Ka= 1.8 x 10-5 for CH3CO2H.
A 25.5g aluminum block is warmed to 65.3 degC and plunged into an insulated beaker containing 55.0g water initially at 22.3 degreeC. The aluminum and the water are allowed to come to thermal equilib
A silver block, initially at 56.8 degrees C, is submerged into 100.0g of water at 24.7 degree C, in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is
A gaseous fuel mixture stored at 752 mmHg and 298 K contains only methane and propane . When 11.6L of this fuel mixture is burned, it produces 767kJ of heat.
Describe the various strategies for the excretion of nitrogenous wastes employed in higher animals (chordates), both human and non-human
How would the process of photosynthesis be affected, and in what steps, if light, CO2 concentration, and/or temperature were altered during photosynthesis
With Niemann-Pick Disease, discuss how lipid metabolism is affected, particularly which enzyme(s), and how the body is affected
Describe the processes of fatty acid oxidation and synthesis in animal tissues, pointing out their similarities and differences
Compare and contrast the functions of chloroplasts and mitochondria with respect to energy production