Recent questions without a selected answer

0 votes

1 answer 97 views

What is the concentration of copper ions in a given water sample using polarography analysis?

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

0 votes

1 answer 108 views

What is the concentration of copper ions in a given solution, using voltammetry as the quantification method?

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

0 votes

1 answer 86 views

What is the concentration of copper ions in a given sample using polarography, if the measured peak current is 2.56 μA and the standard potential of the copper ion electrode is +0.34 V (vs. SCE)?

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

0 votes

1 answer 83 views

What is the concentration of copper ions in a given sample of water collected from a river at a specific location using colorimetric analysis?

asked Jan 30 in Analytical Chemistry by KreogMoore5 (6.4k points)

0 votes

1 answer 105 views

What is the concentration of copper ions in a 25 mL sample of a 0.05 M copper sulfate solution when the sample is analyzed using coulometry with a current of 2.5 A for 10 seconds?

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

0 votes

1 answer 110 views

What is the concentration of copper ions (Cu2+) in a water sample if a voltammetry experiment showed a peak current of 0.25 mA at a potential of 0.5 V vs. Ag/AgCl electrode, and the calibration plot showed a linear relationship between peak current and concentration of Cu2+ in the range of 5-50 µM?

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

0 votes

1 answer 90 views

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)

0 votes

1 answer 62 views

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)

0 votes

1 answer 82 views

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)

0 votes

1 answer 125 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)

0 votes

1 answer 89 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)

0 votes

1 answer 100 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)

0 votes

1 answer 79 views

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)

0 votes

1 answer 91 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)

0 votes

1 answer 114 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)

0 votes

1 answer 114 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)

0 votes

1 answer 102 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)

0 votes

1 answer 85 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)

0 votes

1 answer 106 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)

0 votes

1 answer 111 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)

Recent questions without a selected answer

Categories