Recent questions in Analytical Chemistry

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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?

asked Jan 30 in Analytical Chemistry by NanVanwagene (1.8k points)

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1 answer 75 views

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.

asked Jan 30 in Analytical Chemistry by DannieGuf001 (2.3k points)

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1 answer 98 views

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%?

asked Jan 30 in Analytical Chemistry by ColinVanderm (2.0k points)

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1 answer 85 views

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?

asked Jan 30 in Analytical Chemistry by MagdaMeares (1.8k points)

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1 answer 110 views

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?

asked Jan 30 in Analytical Chemistry by JereGerald1 (1.6k points)

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1 answer 156 views

What is the amount of copper in a sample of copper ore using coulometric titration with a silver anode?

asked Jan 30 in Analytical Chemistry by IvoryWithers (1.8k points)

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1 answer 111 views

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?

asked Jan 30 in Analytical Chemistry by Ben56061281 (1.4k points)

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1 answer 106 views

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.

asked Jan 30 in Analytical Chemistry by AntonioDaven (1.7k points)

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1 answer 116 views

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.)

asked Jan 30 in Analytical Chemistry by BarneyUyv133 (1.7k points)

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1 answer 115 views

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 by MAQShelton1 (1.7k points)

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1 answer 121 views

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?

asked Jan 30 in Analytical Chemistry by NFDRoman4328 (1.8k points)

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1 answer 124 views

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 by KaiRazo33412 (1.9k points)

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1 answer 87 views

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 in Analytical Chemistry by JaimeStockma (2.2k points)

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1 answer 103 views

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 in Analytical Chemistry by AltonDurden (2.1k points)

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1 answer 98 views

What functional groups are present in the given compound as shown in its infrared spectrum?

asked Jan 30 in Analytical Chemistry by CarmellaBibl (2.0k points)

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1 answer 106 views

What functional groups are present in compound X, as identified by infrared spectroscopy?

asked Jan 30 in Analytical Chemistry by GastonGraham (2.2k points)

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1 answer 111 views

What functional groups are present in Compound X, and what are their respective peak frequencies in the infrared (IR) spectrum? Provide a detailed analysis of the IR spectrum of Compound X by interpreting the peak frequencies and intensities of the absorption bands.

asked Jan 30 in Analytical Chemistry by AleidaSeifer (1.7k points)

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What functional groups are present in compound X, and what are their respective absorption frequencies in infrared spectroscopy? How can this information be used to determine the identity of compound X?

asked Jan 30 in Analytical Chemistry by DeeGarrick50 (2.1k points)

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1 answer 98 views

What functional groups are present in Compound X based on the IR spectrum provided? Be sure to identify specific peaks and explain their corresponding functional groups.

asked Jan 30 in Analytical Chemistry by SusannahCrow (2.4k points)

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1 answer 104 views

What functional groups are present in compound X and can they be identified using infrared spectroscopy?

asked Jan 30 in Analytical Chemistry by AlineBacon1 (1.5k points)

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