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Consider a metal that is subjected to cold working by rolling it to a lesser thickness or hammering it. (a) Would you expect the yield strength to be affected by this; and if so, should it increase of decrease? Justify your answer. (b) Answer the same question for ductility of the material. b. Explain how you can experimentally measure Poisson's ratio of isotropic materials. Explain why thermoplastic polymers typically exhibit higher toughness than thermosetting polymers.
adiabatic expansion back to its initial temperature, (c) reversible isothermal compression back to 1.00 atm. Calculate q, w, delta U, and delta H for each step.
A sample of ammonia, NH3, contains 3.3 x 1021 hydrogen atoms. What is the mass of this sample of ammonia
The electron transport chain complexes that have higher electron affinities steal electrons from those with lower electron affinities.
A piece of silver metal weighing 194.3 g is placed in a graduated cylinder containing 242.0 mL of water. The volume of water is displaced and now reads 260.5 mL. Calculate the density of sliver in g/cm3.
What mass of carbon dioxide (in ) is produced upon the complete combustion of 18.9 of propane (approximate contents of one 5-gallon tank). Assume that the density of the liquid propane in the tank is 0.621.
estimate the ph and the concentration of all species in solution at equilibrium for a 0.15 m solution of ascorbic acid
What mass of water would need to evaporate from your skin in order to dissipate 1.7 × 105 J of heat from your body? H2O(l) → H2O(g) ΔHvap = 40.7 kJ/mol
What is the pH of a solution prepared by dissolving 11 mmol of a weak base in 350 mL of a 0.199-M solution of its conjugate acid
If we wish to prepare a 0.50M solution of NaCl how much water must be added to 1.0 mole of NaCl?
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.
Calculate the molarity of a Ca(OH)2 solution if it takes 25.0 mL to titrate 0.650 g of KHP in a standardization titration. (KHP has one H+ and a formula weight of 204.2 g/mol.)
(Calculate using the given masses.) lighter isotope amu heavier isotope amu (c) Determine the average molecular mass of a Br2 molecule. amu (d) Determine the average atomic mass of a bromine atom. amu (e) Calculate the abundances of the two isotop..
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