Recent questions without a selected answer

0 votes

1 answer 89 views

What is the concentration of an HCl solution if 25.00 mL of the solution requires 35.80 mL of 0.100 M NaOH to reach the endpoint during titration?

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

0 votes

1 answer 73 views

What is the concentration of an HCl solution if 25.0 ml of the solution requires 35.0 ml of 0.10 M NaOH solution to reach the endpoint of titration?

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

0 votes

1 answer 106 views

What is the concentration of a unknown copper(II) ion solution using polarography if a current of 2.5 mA is recorded at an applied potential of -0.45 V? The standard reduction potential of Cu2+ to Cu is -0.34 V.

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

0 votes

1 answer 84 views

What is the concentration of a substance in a given sample, using the polarographic method with a measurement potential of -0.4 V and a current of 3.5 mA, if the substance has a limiting current of 5.2 mA?

asked Jan 30 in Analytical Chemistry by BrandiBeer01 (2.4k points)

0 votes

1 answer 101 views

What is the concentration of a specific protein in a sample of human blood serum and how does it compare to the normal physiological range, using capillary electrophoresis?

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

0 votes

1 answer 85 views

What is the concentration of a specific compound in a given sample using liquid chromatography?

asked Jan 30 in Analytical Chemistry by JanniePeek84 (2.0k points)

0 votes

1 answer 68 views

What is the concentration of a solution of iron(II) sulfate if its absorbance at a wavelength of 495 nm is 0.456 in a 1 cm cuvette with a path length of 1 cm? The molar absorptivity of iron(II) sulfate at 495 nm is 8100 L/mol·cm. The molecular weight of iron(II) sulfate is 151.91 g/mol.

asked Jan 30 in Analytical Chemistry by Mose2866156 (1.6k points)

0 votes

1 answer 75 views

What is the concentration of a solution of hydrochloric acid (HCl) in moles per liter (M) if 25 milliliters of the HCl solution reacts completely with 35 milliliters of a 0.1 M solution of sodium hydroxide (NaOH) during a titration process?

asked Jan 30 in Analytical Chemistry by NamSampson2 (1.8k points)

0 votes

1 answer 85 views

What is the concentration of a solution containing CuSO4 if its absorbance is 0.472 at a wavelength of 620 nm? The molar absorptivity of CuSO4 at this wavelength is 2.34 x 10^4. The solution has a path length of 1 cm.

asked Jan 30 in Analytical Chemistry by HarryNewell7 (1.9k points)

0 votes

1 answer 84 views

What is the concentration of a solution containing an unknown amount of lead ions if it requires 25 milliliters of 0.1 M potassium iodide (KI) solution to titrate completely in a polarographic analysis?

asked Jan 30 in Analytical Chemistry by VictorR1855 (2.2k points)

0 votes

1 answer 102 views

What is the concentration of a solution containing 0.25 grams of copper (Cu) metal, that was dissolved in 50 mL of a 0.5 M sulfuric acid (H2SO4) solution, using coulometry? The atomic weight of copper is 63.55 g/mol.

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

0 votes

1 answer 77 views

What is the concentration of a sodium hydroxide (NaOH) solution if it takes 25 mL of 0.1 M hydrochloric acid (HCl) to neutralize 30 mL of the NaOH solution in a titration experiment?

asked Jan 30 in Analytical Chemistry by AugustBranno (2.5k points)

0 votes

1 answer 85 views

What is the concentration of a particular protein in a given sample of blood plasma, and how does it compare to the normal concentration range? Analyze the composition of the blood plasma using the capillary electrophoresis technique and determine the concentration of the protein of interest. Compare the results with the established normal range to evaluate the potential health implications of the protein concentration in the sample.

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

0 votes

1 answer 99 views

What is the concentration of a particular amino acid (e.g. glycine) in a given protein sample using capillary electrophoresis?

asked Jan 30 in Analytical Chemistry by YQYFlora9901 (1.9k points)

0 votes

1 answer 87 views

What is the concentration of a hydrochloric acid solution if 25.00 mL of it requires 34.87 mL of a 0.120 M sodium hydroxide solution to reach a neutral pH during titration?

asked Jan 30 in Analytical Chemistry by ChauFrederic (1.2k points)

0 votes

1 answer 73 views

What is the concentration of a hydrochloric acid solution if 25 ml of the solution requires 18 ml of a 0.1 M sodium hydroxide solution for complete neutralization during a titration?

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

0 votes

1 answer 105 views

What is the concentration of a hydrochloric acid solution if 25 mL of the solution requires 15 mL of 0.1 M sodium hydroxide for complete neutralization?

asked Jan 30 in Analytical Chemistry by MistyReagan2 (1.4k points)

0 votes

1 answer 112 views

What is the concentration of a hydrochloric acid (HCl) solution in moles per liter (M) if 25 mL of a 0.1 M sodium hydroxide (NaOH) solution is required to neutralize 50 mL of the HCl solution?

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

0 votes

1 answer 107 views

What is the concentration of a hydrochloric acid (HCl) solution if 25.0 ml of it requires 30.0 ml of 0.1 M sodium hydroxide (NaOH) to completely react in a titration?

asked Jan 30 in Analytical Chemistry by KelleS495456 (1.9k points)

0 votes

1 answer 95 views

What is the concentration of a copper(II) ion (Cu2+) solution using polarography if the current at -0.5 V vs. saturated calomel electrode (SCE) is 10 mA and the current at -1.0 V vs. SCE is 25 mA, assuming the standard reduction potential of Cu2+/Cu is +0.34 V vs. SCE and the supporting electrolyte is 0.1 M KCl?

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

Recent questions without a selected answer

Categories