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A solution of NaCl was electrolyzed using a current of 2.0 A for 30 minutes. If 0.20 grams of NaCl was consumed in the process, what is the value of the Faraday constant?

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To find the Faraday constant, we first need to determine the number of moles of NaCl consumed and the total charge passed through the solution.1. Calculate the moles of NaCl consumed:NaCl has a molar mass of 58.44 g/mol  22.99 g/mol for Na and 35.45 g/mol for Cl . moles of NaCl = mass of NaCl / molar mass of NaClmoles of NaCl = 0.20 g / 58.44 g/mol = 0.00342 mol2. Determine the total charge passed through the solution:Current  I  = 2.0 A  Ampere is equal to Coulombs per second Time  t  = 30 minutes = 1800 seconds  1 minute = 60 seconds Total charge  Q  = Current  I   Time  t Q = 2.0 A  1800 s = 3600 C  Coulombs 3. Calculate the number of electrons transferred:The balanced equation for the electrolysis of NaCl is:2 NaCl  2 Na + ClFrom the balanced equation, we can see that 2 moles of electrons are required to electrolyze 1 mole of NaCl. Therefore, the number of moles of electrons transferred is:moles of electrons = 2  moles of NaClmoles of electrons = 2  0.00342 mol = 0.00684 mol4. Determine the value of the Faraday constant  F :The Faraday constant is the charge of 1 mole of electrons. We can find it by dividing the total charge passed through the solution by the moles of electrons transferred:Faraday constant  F  = Total charge  Q  / moles of electronsF = 3600 C / 0.00684 mol = 526315.79 C/molThe value of the Faraday constant is approximately 526,316 C/mol.

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