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Consider a solution containing 3.70 mM of an analyte, X, and 1.99 mM of a standard, S. Upon chromatographic separation of the solution peak areas for X and S are 3979 and 10035, respectively. Determine the response factor for X relative to S. F=? To determine the concentration of X in an unknown solution, 1.00 mL of 8.42 mM S was added to 5.00 mL of the unknown X solution and the mixture was diluted to 10.0 mL. After chromatographic separation, this solution gave peak areas of 5737 and 4719 for X and S, respectively. Determine the concentration of S in the 10.0 mL solution. S=?mM Determine the concentration of X in the 10.0 mL solution. X=?mM Determine the concentration of X in the unknown solution. X=?mM
Calculate the concentration of (C6H6O6)2- in an aqueous solution of .0619 M ascorbic acid, H2C6H6O6 (aq).
Sodium saccharin, is a nucleophile, but DMF is not. Explain why
Would you expect to recover 100% of the desired compound from an impure sample using solution recrystallization?
how many moles of co2 when 15.5 ml of a 3.00 m hci reacts with excess caco3?the calcium carbonate in limestone reacts
Question about Thermochemistry, Consider the reaction: H2(g) + Cl2(g) yields 2HCl(g) Change Heat = -184.6
substance a and b are the same mass and at the same initial temperature. When the same amount of heat is added to each the final temperature of a is 75 degrees celsius
a solution is 40 acetic acid by mass. the density of this solution is 1.049 gml. calculate the mass of pure acetic acid
Write a chemical equation for LiOH(aq) showing how it is an acid or a base according to the Arrhenius definition.
A 255-mL flask contains pure helium at a pressure of 745 torr. A second flask with a volume of 455 mL contains pure argon at a pressure of 725 torr.If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial ..
an automobile gasoline tank holds 49 of gasoline. when the gasoline burns 172 of oxygen are consumed and carbon dioxide
Determine if a precipitate forms when the following solutions are mixed. Write the overall equation, the total ionic equation, and the net ionic equation. PbNO3(aq) + 2KI (aq) ? overall equation: total ionic: Net ionic equation
What would be the expected freezing point of a solution made up of 0.4237g of solute dissolved in 27.3g cyclohexane? The solute has a MW of 173.5 g/mol.
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