Recent questions in Analytical Chemistry

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What is the concentration of copper ions (Cu2+) in a sample solution if the absorbance of the solution at a wavelength of 550 nm is 0.45 and the path length of the sample cell is 1 cm? Given that the molar absorptivity of Cu2+ at this wavelength is 1.5 × 10^4 L mol^-1 cm^-1.

asked Jan 30 in Analytical Chemistry by BlairMorrill (1.9k points)

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What is the concentration of copper ions (Cu2+) in a sample of industrial wastewater? Use voltammetry to determine the amount of copper ions present in the sample and calculate the concentration in parts per million (ppm).Note: The student should be familiar with the principles of voltammetry and know how to prepare and analyze samples for this technique.

asked Jan 30 in Analytical Chemistry by AudraNowlin6 (2.2k points)

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What is the concentration of copper ions (Cu2+) in a 100 mL sample of wastewater if 4652 coulombs of electricity are needed to completely oxidize all the copper ions present? The electrolysis is carried out using a current of 0.25 amperes for a period of 6 minutes. Assume that the only copper present is in the form of Cu2+.

asked Jan 30 in Analytical Chemistry by ChongLigon1 (2.0k points)

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1 answer 138 views

What is the concentration of copper in a soil sample taken from a copper mine using X-ray fluorescence spectroscopy?

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

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1 answer 105 views

What is the concentration of copper in a sample of ore from a mine, obtained from a particular site, using X-ray fluorescence spectroscopy?

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

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1 answer 111 views

What is the concentration of copper (II) ions present in a water sample collected from a polluted river using polarography?

asked Jan 30 in Analytical Chemistry by YaniraRhh59 (1.9k points)

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What is the concentration of copper (II) ions in a sample of tap water using voltammetric analysis?

asked Jan 30 in Analytical Chemistry by RichieRedric (1.9k points)

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1 answer 139 views

What is the concentration of copper (II) ions in a given sample of wastewater using the polarographic method, given the obtained peak current is 2.5 mA and the standard potential of Cu2+ → Cu transformation is -0.34 V, working at a pH of 4.5 with a scan rate of 50 mV/s?

asked Jan 30 in Analytical Chemistry by AudraNowlin6 (2.2k points)

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1 answer 121 views

What is the concentration of chloride ions present in a sample of seawater using the potentiometry technique with a silver chloride electrode?

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

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1 answer 122 views

What is the concentration of chloride ions present in a sample of seawater using an ion-selective electrode?

asked Jan 30 in Analytical Chemistry by ClarkPuig93 (2.0k points)

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1 answer 109 views

What is the concentration of chloride ions in a sample of water collected from a swimming pool, measured using an ion-selective electrode?

asked Jan 30 in Analytical Chemistry by LeifBarrios7 (2.0k points)

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1 answer 92 views

What is the concentration of chloride ions in a sample of seawater? Use potentiometry to quantify the amount of chloride ions present in the sample.

asked Jan 30 in Analytical Chemistry by DarbyJackey7 (1.4k points)

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1 answer 117 views

What is the concentration of chloride ions in a sample of seawater, measured in parts per million (ppm), using potentiometry analysis?

asked Jan 30 in Analytical Chemistry by LeoQuinonez1 (1.9k points)

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1 answer 120 views

What is the concentration of chloride ions in a sample of seawater, given that the sample had a potential difference of 0.64 V and the standard potential of the silver-silver chloride electrode is 0.22 V at 25°C?

asked Jan 30 in Analytical Chemistry by ValentinChri (1.9k points)

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1 answer 86 views

What is the concentration of chloride ions in a sample of seawater, and how can it be determined using an ion-selective electrode?

asked Jan 30 in Analytical Chemistry by EdwardCecili (1.9k points)

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1 answer 133 views

What is the concentration of chloride ions in a sample of seawater using potentiometry?

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

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1 answer 95 views

What is the concentration of chloride ions in a sample of seawater using potentiometry, if a 0.1 M silver nitrate solution is used as a titrant and a silver-silver chloride electrode is used as an indicator electrode?

asked Jan 30 in Analytical Chemistry by ShaunteYun90 (1.4k points)

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1 answer 111 views

What is the concentration of chloride ions in a given solution using a chloride ion-selective electrode?

asked Jan 30 in Analytical Chemistry by DXGMilagros4 (1.9k points)

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1 answer 146 views

What is the concentration of chloride ions in a given sample of seawater using coulometry?

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

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1 answer 119 views

What is the concentration of chloride ions in a given salt solution using a Chloride ion-selective electrode with a potential reading of -0.35 V?

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

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