Regia Gold
One of the few reagents that can dissolve …?
One of the few reagents that can dissolve gold is aqua regia. Aqua regia can decompose rapidly to form nitrosyl chloride, nitric oxide and chlorine gas, which is balanced chemical equation = Cl2 (g) + 2NO (g) <—> 2NOCl (g) a) What is the equation for the relative rate of disappearance of chlorine gas and nitric oxide and the appearance nitrosyl chloride? b) Tests show that when the concentration of chlorine gas is to triple the rate of triplets. When the concentration of nitric oxide is doubled quadruple the rate. What is the rate law for the formation of nitrosyl chloride? C) What is the reaction order of the overall reaction?
a) Rates Cl2 = -1 / 2 rate for NO = 1 / 2 price NOCl b) since the triplet rate when the Trib Cl2. triplets, the reaction is first order in Cl 2 as the rate when the quad is NO doubled, the reaction is second order in NO. The rate law is: rate = k d [Cl 2] [NO] ^ 2 c) the order of reaction is the sum of Exhibitors in the rate law: the exponent on [Cl2] 1 is the exponent on [NO] is 2 so it is third order in general.
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600 Gram DIGITAL SCALE Aqua Regia Refining Gold TROY OZ $19.99 |
