A standard solution containing 6.9 10-8 M iodoacetone and 1.6 10-7 M p-dichlorobenzene (an internal standard)...

A standard solution containing 6.9 10-8 M iodoacetone and 1.6 10-7 M p-dichlorobenzene (an internal standard) gave peak areas of 330 and 480, respectively, in a gas chromatogram. A 3.00 mL unknown solution of iodoacetone was treated with 0.100 mL of 1.3 10-5 M p-dichlorobenzene and the mixture was diluted to 10.00 mL. Gas chromatography gave peak areas of 524 and 333 for iodoacetone and p-dichlorobenzene, respectively. Find the concentration of iodoacetone in the 3.00 mL of original unknown.

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queen_honey_blossom answered 2 years ago

A solution containing octanol was analyzed by GC using the method of internal standard. The internal...

A solution containing octanol was analyzed by GC using the method of internal standard. The internal standard was hexanol. Control sample: A control solution was prepared that had 10.0 mM octanol and 2.00 mM hexanol. This sample produced a chromatograph with peak areas of 4500 for octanol and 5000 for hexanol. Unknown sample: A spiked unknown was prepared by adding 2.00 mL of 10.00 mM hexanol to 5.00 mL of the unknown octanol solution and diluted to 10.00 mL with...

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Calculate the pH of each solution. A. [H3O+] = 7.7×10−8 M B. [H3O+] = 4.0×10−7 M C. [H3O+] = 3.2×10−6 M D. [H3O+] = 4.4×10−4 M

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Calculate the pH of a 2.30×10-8 M solution of HBr.

A. Calculate [H3O+] in the following aqueous solution at 25 ?C: [OH?]= 1.6×10?9 M . Express...

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1.Determine the pH and pOH for each of the following solutions: [OH−] = 1.6×10−7 M [H3O+]...

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