Chemistry, 24.09.2019 21:10 colochaortiz20p7cajw
Aseed crystal of diameter d (mm) is placed in a solution of dissolved salt, and new crystal are observed to nucleate (form) at a constant rate r (crystals/min). experiments with seed crystals of different sizes show that the rate of nucleation varies with the seed crystal diameter as: r(crystals/min)= 100-20d a) what are the units of the constants 100 and 20? (assume the given equation is valid and therefore dimensionally homogenous). b) calculate the crystal nucleation rate in crystal/s corresponding to a crystal diameter of 0.050 in. 3 c) derive a formula for r(crystals/s) in terms of d (in).
Answers: 3
Chemistry, 22.06.2019 12:00
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
Answers: 1
Chemistry, 23.06.2019 03:00
Achemical equilibrium between gaseous reactants and products is shown. n2(g) + 3h2(g) ⇌ 2nh3(g) how will the reaction be affected if the pressure on the system is increased? it will shift toward the reactant side as there is lower pressure on the reactant side. it will shift toward the product side as there is higher pressure on the product side. it will shift toward the reactant side as there are a greater number of moles of gas on the reactant side. it will shift toward the product side as there are a fewer number of moles of gas on the product side.
Answers: 2
Chemistry, 23.06.2019 09:00
Astream of surface water reaches a porous portion of sediment and seeps into the ground. this water eventually joins a large reservoir of water located beneath the earth's surface. the example above describes the interacting with the a. cryosphere; biosphere b. hydrosphere; biosphere c. hydrosphere; geosphere d. cryosphere; geosphere
Answers: 3
Aseed crystal of diameter d (mm) is placed in a solution of dissolved salt, and new crystal are obse...
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