Chemistry
Chemistry, 26.07.2019 05:10, jesser9

Nickel can be planted from aqueous solution according to the following half reaction. how long would it take (in min) to plate 29.6 g of nickel at 4.7 a?

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Chemistry, 27.07.2019 04:10, asseatingbandit
Briefly explain the difference between mass transfer coefficient and diffusion coefficient using a suitable diagram (only a brief sketch) of the diffusion layer model for a reaction between aqueous species and a solid (see lecture slides) (a) (b)assume that the mass transfer of a controls the rate of reaction between a and b at each of the three interphases (i), (ii) and (iii) shown below. comment with reasons (one sentence only in each case) regarding the phase through which the transfer of a will control the reaction rate (solid, gas or aqueous) (iii) organic (b) aqueous (a) solid (b) gas (a) aqueous (a) aqueous (b) (c) nickel dissolves from millerite (nis) in an oxygenated sulfuric acid solution at 80 °c. list the important steps, which may control the leaching of nickel from the suspended nis particles in this solution according to the reaction
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Chemistry, 27.07.2019 12:30, AdoNice
The nickel(ii) ion is commonly dissolved in solution using nickel(ii) nitrate hexahydrate, ni(no3)2.6h2o. the nickel(ii) ion precipitates as ni(oh)2(s) with a ksp value of 6 x 10-16. calculate the molar solubility of nickel(ii) in a solution with a ph of 10.00
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Chemistry, 03.08.2019 01:30, smiley29162
The unstable isotope nickel-59 can be used to date rocks that contain it. nickel-59 decays into the more stable cobalt-59. the nickel isotope has a half-life of 76,000 years. which statement about nickel-59 is true? a) after 76,000 years, all the nickel-59 in a rock decays into cobalt-59.b) nickel-59 can only be used to date rocks that are younger than 76,000 years.c) all the nickel-59 stabilizes after it completes one half-life period of 76,000 years.d) the amounts of nickel-59 and cobalt-59 remain the same over a half-life period.e) the amounts of nickel-59 and cobalt-59 tell how long ago the rock cooled to closure temperature.
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Chemistry, 22.09.2019 22:30, sash0924
An aqueous solution of nickel (ii) sulfate is mixed with aqueous sodium hydroxide. will a double replacement reaction occur? a.no, solid nickel (ii) hydroxide is soluble in water. b.no, solid sodium sulfate is soluble in water. c.yes, solid nickel (ii) hydroxide will precipitate out of the solution. d.yes, a solid sodium sulfate will precipitate out of the solution.
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Nickel can be planted from aqueous solution according to the following half reaction. how long would...

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