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Consider a solution containing 4.69 mM of an analyte, X, and 1.22 mM of a standard,...
A solution contains 4.96 mM of an analyte, X, and 1.81 mM of a standard, S....
A solution contains 4.96 mM of an analyte, X, and 1.81 mM of a standard, S. Upon chromatographic separation of the solution, peak areas for X and S are 3189 and 10239, respectively. Determine the response factor for X relative to S. To determine the concentration of X in an unknown solution, 1.00 mL of 8.10 mM S was added to 3.00 mL of the unknown X solution and the mixture was diluted to 10.0 mL. After chromatographic separation, this...
5-29. A solution containing 3.47 mM X (analyte) and 1.72 mM S (standard) gave peak areas...
5-29. A solution containing 3.47 mM X (analyte) and 1.72 mM S (standard) gave peak areas of 3 473 and 10 222, respectively, in a chromatographic analysis. Then 1.00 mL of 8.47 mM S was added to 5.00 mL of unknown X, and the mixture was diluted to 10.0 mL This solution gave peak areas of 5 428 and 4 431 for X and S respectively (a) Calculate the response factor for the analyte (b) Find the concentration of S...
A solution containing 3.47 mM X (analyte) and 1.72 mM S (Standard) gave peak areas of...
A solution containing 3.47 mM X (analyte) and 1.72 mM S (Standard) gave peak areas of 3.473 and 10222, respectively, in a chromatographic analysis. Then 1mL of 8.47 mM S was added to 5mL of unknown X, and the mixture was diluted to 10mL. This solution gave a peak areas of 5,428 and 4,431 for X and S, respectively. a.) Calculate the response factor for the analyte. b.) Find the concentration of S (mM) in the 10mL mixture. c.) Find...
26. Consider a solution containing 3.28 mM of an analyte, X, and 1.17 mM of a...
26. Consider a solution containing 3.28 mM of an analyte, X, and 1.17 mM of a standard, S. Upon chromatographic separation of the solution peak areas for X and S are 3853 and 10913, respectively Determine the response factor (F) for X relative to S 0 125 0 15 03532
A standard solution containing 5.6 10-8 M iodoacetone and 2.5 10-7 M p-dichlorobenzene (an internal standard)...
A standard solution containing 5.6 10-8 M iodoacetone and 2.5 10-7 M p-dichlorobenzene (an internal standard) gave peak areas of 306 and 877, respectively, in a gas chromatogram. A 3.00 mL unknown solution of iodoacetone was treated with 0.100 mL of 1.0 10-5 M p-dichlorobenzene and the mixture was diluted to 10.00 mL. Gas chromatography gave peak areas of 685 and 329 for iodoacetone and p-dichlorobenzene, respectively. Find the concentration of iodoacetone in the 3.00 mL of original unknown.
in a preliminary data, a solution containing 0.0837 M "X" and 0.0666 M internal standard give...
in a preliminary data, a solution containing 0.0837 M "X" and 0.0666 M internal standard give peak area Ax = 423 and As = 347. To analyze unknown, 10.0 mL of 0.146 internal standard were added to 10.0 mL of unknown. The mixture was diluted to 25.0 mL in volumetric flask. Final solution gave Ax = 553 and As = 582. What is [X]i ?
A standard sample was prepared containing 20.00 ppm of an analyte and 10.00 ppm internal standard....
A standard sample was prepared containing 20.00 ppm of an analyte and 10.00 ppm internal standard. The signal readings for these were 0.115 units and 0.321 units respectively. Sufficient internal standard was added to an unknown sample solution to make it contain 15.00 ppm internal standard. This solution gave readings for the analyte and internal standard of 0.266 and 0.275 units respectively. Determine the concentration of the analyte in the unknown sample.
A known mixture of Compound X (1.52 mg/mL) and Compound Y (1.73 mg/mL) gave peak areas of 16.02 and 9.41 cm², respectiv...
A known mixture of Compound X (1.52 mg/mL) and Compound Y (1.73 mg/mL) gave peak areas of 16.02 and 9.41 cm², respectively, after separation by isocratic HPLC. A solution was prepared by mixing 8.76 mg of Compound Y with 5.00 mL of unknown containing just Compound X, and diluting to 10.00 mL. Peak areas of 5.96 cm- (Compound X) and 4.86 cm (Compound Y) were measured. Find the concentration of Compound X in the unknown.
This question applies to the separation of a solution containing pentanol (MM 88.15 g/mol) and 2,3-dimethyl-2-butanol...
This question applies to the separation of a solution containing pentanol (MM 88.15 g/mol) and 2,3-dimethyl-2-butanol (MM 102.17 g/mol). Pentanol is the internal standard. Separation of a standard solution containing 225 mg of pentanol and 233 mg of 2,3-dimethyl-2-butanol in 10.0 mL of solution led to a pentanol:2,3-dimethyl-2-butanol relative peak area ratio of 0.913:1.00. Calculate the response factor, F, for 2,3-dimethyl-2-butanol. F= Calculate the areas for pentanol and 2,3-dimethyl-2-butanol gas chromatogram peaks in an unknown solution. For pentanol, the peak...
This question applies to the separation of a solution containing pentanol (MM 88.15 g/mol) and 2,3-dimethyl-2-butanol...
This question applies to the separation of a solution containing pentanol (MM 88.15 g/mol) and 2,3-dimethyl-2-butanol (MM 102.17 g/mol). Pentanol is the internal standard. Separation of a standard solution containing 211 mg of pentanol and 255 mg of 2,3-dimethyl-2-butanol in 10.0 mL of solution led to a pentanol:2,3-dimethyl-2-butanol relative peak area ratio of 0.889:1.00. Calculate the response factor, F. for 2,3-dimethyl-2-butanol. F- Calculate the areas for pentanol and 2.3-dimethyl-2-butanol gas chromatogram peaks in an unknown solution. For pentanol, the peak...
A solution contains 4.96 mM of an analyte, X, and 1.81 mM of a standard, S. Upon chromatographic separation of the solution, peak areas for X and S are 3189 and 10239, respectively. Determine the response factor for X relative to S. To determine the concentration of X in an unknown solution, 1.00 mL of 8.10 mM S was added to 3.00 mL of the unknown X solution and the mixture was diluted to 10.0 mL. After chromatographic separation, this...
5-29. A solution containing 3.47 mM X (analyte) and 1.72 mM S (standard) gave peak areas of 3 473 and 10 222, respectively, in a chromatographic analysis. Then 1.00 mL of 8.47 mM S was added to 5.00 mL of unknown X, and the mixture was diluted to 10.0 mL This solution gave peak areas of 5 428 and 4 431 for X and S respectively (a) Calculate the response factor for the analyte (b) Find the concentration of S...
26. Consider a solution containing 3.28 mM of an analyte, X, and 1.17 mM of a standard, S. Upon chromatographic separation of the solution peak areas for X and S are 3853 and 10913, respectively Determine the response factor (F) for X relative to S 0 125 0 15 03532
A known mixture of Compound X (1.52 mg/mL) and Compound Y (1.73 mg/mL) gave peak areas of 16.02 and 9.41 cm², respectively, after separation by isocratic HPLC. A solution was prepared by mixing 8.76 mg of Compound Y with 5.00 mL of unknown containing just Compound X, and diluting to 10.00 mL. Peak areas of 5.96 cm- (Compound X) and 4.86 cm (Compound Y) were measured. Find the concentration of Compound X in the unknown.
This question applies to the separation of a solution containing pentanol (MM 88.15 g/mol) and 2,3-dimethyl-2-butanol (MM 102.17 g/mol). Pentanol is the internal standard. Separation of a standard solution containing 225 mg of pentanol and 233 mg of 2,3-dimethyl-2-butanol in 10.0 mL of solution led to a pentanol:2,3-dimethyl-2-butanol relative peak area ratio of 0.913:1.00. Calculate the response factor, F, for 2,3-dimethyl-2-butanol. F= Calculate the areas for pentanol and 2,3-dimethyl-2-butanol gas chromatogram peaks in an unknown solution. For pentanol, the peak...
This question applies to the separation of a solution containing pentanol (MM 88.15 g/mol) and 2,3-dimethyl-2-butanol (MM 102.17 g/mol). Pentanol is the internal standard. Separation of a standard solution containing 211 mg of pentanol and 255 mg of 2,3-dimethyl-2-butanol in 10.0 mL of solution led to a pentanol:2,3-dimethyl-2-butanol relative peak area ratio of 0.889:1.00. Calculate the response factor, F. for 2,3-dimethyl-2-butanol. F- Calculate the areas for pentanol and 2.3-dimethyl-2-butanol gas chromatogram peaks in an unknown solution. For pentanol, the peak...
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