Recent questions in Chemistry

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How would you calculate the mass of zinc in a 1.000 g sample of a brass alloy using gravimetric analysis?

asked Jan 30 in Analytical Chemistry by FredricPalum (190 points)

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How to quantify the concentration of copper (II) ions in a sample of water using colorimetry?

asked Jan 30 in Analytical Chemistry by LouNeuhaus88 (230 points)

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How to identify the presence of lead and cadmium in a soil sample using X-ray fluorescence spectroscopy?

asked Jan 30 in Analytical Chemistry by ElbaFedler88 (250 points)

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How to identify the presence of carbonyl functional groups in a given unknown organic compound using infrared spectroscopy?

asked Jan 30 in Analytical Chemistry by LouisThursto (270 points)

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How to determine the exact concentration of various cations and anions present in a given sample using capillary electrophoresis and what factors affect the separation and detection of these ions during the analysis?

asked Jan 30 in Analytical Chemistry by RhodaVue438 (330 points)

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How to determine the concentration of hydrochloric acid in a given sample using potentiometry?

asked Jan 30 in Analytical Chemistry by TaylaDerrick (270 points)

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How to determine the concentration of different ionic species present in a sample using capillary electrophoresis?

asked Jan 30 in Analytical Chemistry by CelestaRegal (650 points)

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How to determine the concentration of chloride ions in a given solution using an ion-selective electrode?

asked Jan 30 in Analytical Chemistry by DominiqueLia (470 points)

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How to determine the concentration of chloride ions (Cl-) in a given solution using an ion-selective electrode?

asked Jan 30 in Analytical Chemistry by Larhonda9708 (210 points)

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How much sodium chloride (NaCl) can be obtained from a sample of 5 grams of sea salt, given that the percentage of NaCl in the sample is 85% and gravimetric analysis is being used for the quantification?

asked Jan 30 in Analytical Chemistry by AurelioVos81 (430 points)

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How much lead is present in a water sample collected from a local river using atomic absorption spectroscopy?

asked Jan 30 in Analytical Chemistry by XGHZelda435 (250 points)

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How much chloride ion (Cl-) is present in a 75 mL sample of a solution with an unknown concentration of sodium chloride (NaCl) using a potentiometric titration with 0.1 M silver nitrate (AgNO3) solution and a silver-silver chloride (Ag/AgCl) reference electrode?

asked Jan 30 in Analytical Chemistry by JustineDez22 (330 points)

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How many moles of hydrochloric acid are present in a solution of 50 mL of 0.1M NaOH when titrated with 0.1M HCl solution?

asked Jan 30 in Analytical Chemistry by DennisGraynd (250 points)

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1 answer 101 views

How many moles of copper (Cu) are present in a sample weighing 0.250 g when 10.0 coulombs of electricity is passed through it during the coulometric titration process? The electrode used was a copper electrode, and the atomic weight of copper is 63.55 g/mol.

asked Jan 30 in Analytical Chemistry by Indira70A61 (490 points)

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How many moles of copper (Cu) are present in a sample that requires 4000 coulombs of electricity to be completely oxidized in a coulometric analysis?

asked Jan 30 in Analytical Chemistry by CarmellaCord (350 points)

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How many milligrams of lead are present in a 50 mL water sample with a concentration of 0.05 ppm, determined using atomic absorption spectroscopy with a calibration curve?

asked Jan 30 in Analytical Chemistry by MurielBolick (210 points)

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1 answer 74 views

How does the detection limit of X-ray fluorescence spectroscopy change with varying concentrations of the element of interest in a sample?

asked Jan 30 in Analytical Chemistry by YettaBarrera (330 points)

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1 answer 92 views

How does the concentration of copper ions in a given sample of water extracted from a polluted river affect the peak current observed in a cyclic voltammogram using a copper electrode?

asked Jan 30 in Analytical Chemistry by AlexandraCru (310 points)

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1 answer 78 views

How does the concentration of copper in a water sample affect the peak current observed in cyclic voltammetry, and how can this technique be used to determine the concentration of copper in the sample?

asked Jan 30 in Analytical Chemistry by Dan80P219189 (370 points)

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How does changing the pH of the buffer solution affect the separation and detection of ionic species during capillary electrophoresis analysis of a given sample?

asked Jan 30 in Analytical Chemistry by IolaBainton (440 points)

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