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How many grams of Cu(OH)2 can be produced from the reaction of 0.500g Cu with 30.0mL of 3.0M NaOH?
Wiki User
∙ 8y ago
Cu + 2NaOH ---> Cu(OH)2 + 2NaSince we have a finite amount of two reactants we must first determine which is the limiting reactant.
For Cu: n= m/M = 0.500 g/63.53 g/mol = 7.87E-3 mol
For NaOH: n = CV = (3.0 mol/L)(0.0300 L) = 9.00E-2 mol
Copper is by far the limiting reactant therefore we will use its amount to find the maximum Cu(OH)2 that can be yielded from the reaction. Since the above reaction scheme indicates that Cu and Cu(OH)2 are in a 1 to 1 ratio, their molar amounts are the same ie. at the end of the reaction there will be 7.87E-3 mol of Cu(OH)2
To find the mass that corresponds to this molar amount we multiply by the molar mass of Cu(OH)2 (97.56 g/mol):
m=nM = (7.87E-3 mol)(97.56 g/mol) = 0.7678 g
Therefore 0.500 g of Cu will yield 0.768 g (3 sig fig) of Cu(OH)2.
Wiki User
∙ 8y ago
Wiki User
∙ 9y agoCopper (as a metal) doesn't react with sodium hydroxide.
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CuOH2
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copper, oxygen and hydrogen
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Cu is a metal and OH- is a an ion consisting of two nonmetals A compound is almost always ionic if it is a metal bonded with a nonmetal. Thus, CuOH2 (Copper(II) Hydroxide) is ionic.
Find molar solubility of CuOH2 in 1.0M NH3 if the deep blue complex ion CuNH34 2 forms w CuOH2 Ksp1.6x10-19 w CuNH34 2 Kf1.1x1013 a 1.6x10e-2 b 1.6x10e-3 c 7.4x10e-4 d 7.6x10e-3?
I'm sorry about the lack of readability in this question - Wiki Answers eliminated all the punctuation (parenthesis) necessary for the problem - maybe a better question to post would be "Why does Wiki Answers find it necessary to eliminate punctuation when it's part of a question?" This flaw is a detriment to the usability of the site - other answer sites don't have punctuation regulated so severely.
Is CuOH2 soluble or insoluble?
CuOH is not the formula of copper hydroxide, it is Cu(OH)2, where the 2 should be a subscript. It is a blue gelatinous solid formed when hydroxide ions are added to solutions of copper salts. It is insoluble, but decomposes in air to copper oxide and water.
