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What is the chemical composition of a given crystalline substance using X-ray diffraction analysis and how can it be determined from the diffraction pattern obtained?
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Jan 30
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Analytical Chemistry
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MathewForman
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What is the best electrophoresis technique to use for separating and analyzing the composition of proteins in a complex sample mixture?
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Jan 30
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Analytical Chemistry
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What is the amount of silver ions present in a sample of a 0.500 M silver nitrate solution after the complete electrolysis of 50.0 mL using coulometric titration at a constant current of 2.00 mA for 25.0 minutes?
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Jan 30
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Analytical Chemistry
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YRPAbe659621
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What is the amount of CuSO4 present in a given sample using coulometry if a constant current of 50 mA is passed through the sample for 30 minutes, and 30.6 mA-h of charge is consumed in the process?
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Jan 30
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Analytical Chemistry
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DanaValentin
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What is the amount of copper sulfate (CuSO4) present in a sample of 5.00 grams of a compound containing only copper sulfate? Use gravimetric analysis to determine the answer.
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Jan 30
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Analytical Chemistry
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JamaalEnnor6
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96
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What is the amount of copper present in a 2-g copper wire using coulometry?
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Jan 30
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Analytical Chemistry
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DanaPittmann
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What is the amount of copper present in a 0.2500 g sample of a copper salt, if it requires 12500 C of electricity to completely deposit it during coulometric titration?
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Jan 30
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Analytical Chemistry
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NanVanwagene
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What is the amount of copper ions present in a sample if 5.25 grams of the sample produces a current of 2.35 A for 2 hours during coulometry analysis? The molar mass of copper is 63.55 g/mol and the sample contains only copper ions.
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Jan 30
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Analytical Chemistry
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DannieGuf001
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What is the amount of copper ions present in a 1.0 mL sample of copper sulfate solution, when a current of 3.0 A for 10 seconds is used for coulometry analysis, assuming 100% efficiency in electrode reactions and a coulombic efficiency of 90%?
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Jan 30
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Analytical Chemistry
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ColinVanderm
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What is the amount of copper ions present in a 0.01 M CuSO4 solution that is electrolyzed for 10 minutes using a current of 0.3 A?
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Jan 30
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Analytical Chemistry
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MagdaMeares
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What is the amount of copper ions in a 0.1 M CuSO4 solution if it takes 10 minutes to completely electrolyze (under constant current of 0.15 A) a 35-mg copper wire which is in contact with the solution?
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Jan 30
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Analytical Chemistry
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JereGerald1
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111
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What is the amount of copper in a sample of copper ore using coulometric titration with a silver anode?
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Jan 30
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Analytical Chemistry
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IvoryWithers
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What is the amount of copper in a sample of an unknown compound if 25.0 mL of a 0.050 M EDTA solution is required to titrate a 0.100 g sample of the compound using coulometry?
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Jan 30
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Analytical Chemistry
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Ben56061281
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What is the amount of copper (II) sulfate in a sample of solution if 4.00 coulombs of charge are needed to completely oxidize it at the anode during a coulometric titration? The molarity of the titrant solution is 0.025 M and the volume of the titrant used is 100 mL.
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Jan 30
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Analytical Chemistry
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AntonioDaven
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What is the amount of copper (Cu) in a sample of brass weighing 10.5 grams, if the sample was dissolved in sulfuric acid and the resulting Cu2+ ions were fully reduced using coulometry, requiring a total charge of 1150 C? (Assume 100% current efficiency and Faraday's constant as 96500 C/mol.)
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Jan 30
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Analytical Chemistry
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BarneyUyv133
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105
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What is the amount (in moles) of silver ions present in a 0.1M solution of silver nitrate if 1000 coulombs of charge are needed to completely deposit the silver ions onto an electrode during coulometry?
asked
Jan 30
in
Analytical Chemistry
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MAQShelton1
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112
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What is the amount (in moles) of copper ions present in a 500 mL solution of 0.1 M copper sulfate, as determined using coulometry?
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Jan 30
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Analytical Chemistry
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NFDRoman4328
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113
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What is the amount (in moles) of copper in a 500 mL solution of 0.1 M CuSO4, when the solution is electrolyzed using a current of 2.50 A for 30 minutes? The electrode used for the electrolysis is a copper electrode.
asked
Jan 30
in
Analytical Chemistry
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KaiRazo33412
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77
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What is the amount (in moles) of calcium carbonate in a 7.25 g sample of limestone if the gravimetric analysis found that the sample contained 65.2% calcium carbonate?
asked
Jan 30
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Analytical Chemistry
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JaimeStockma
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92
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What is the amount (in grams) of pure calcium carbonate present in a sample of marble weighing 2.151 grams, assuming the marble consists entirely of calcium carbonate and using gravimetric analysis?
asked
Jan 30
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Analytical Chemistry
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AltonDurden
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