1. When a solution containing 234 mg of butanol (FM 74.12) and 312 mg of hexanol (FM 102.17) in 10.0 mL was separated by gas chromatography, the relative peak areas were butanol:hexanol 1.00:1.45. Considering butanol to be the internal standard, find the response factor for hexanol. 2. When 1.06 mmol of 1-pentanol and 1.53 mmol of 1-hexanol were separated by gas chromatography, they gave relative peak areas of 922 and 1 570 units, respectively. When 0.57 mmol of pentanol was added to an unknown containing hexanol, the relative chromatographic peak areas were 843:816 (pentanol:hexanol). How much hexanol did the unknown contain?

Q1: The following are relative peak areas for chromatograms of standard solutions of methyl vinyl ketone (MVK) MVK concentration mmol/L 0.5 Relative peak area 3.76 1.5 9.16 2.5 15.03 3.5 20.42 4.5 25.33 5.5 31.97 A sample containing MVK yielded relative peak area of 21.3. Calculate the concentration of MVK in the sample.(use excel)

Sheet 5 From the following data determine the following: Define outlier and then identify the outlier in the data. Determine if the outlier should be kept of discarded from the data. Trial 1 2 3 4 HCl (mL) 22.3 28.4 29.8 29.3 NaOH (mL) 35.2 35.1 34.9 35.0

In which of the following mixture(s) would CaF2(s) (Ksp = 4.0 x 10-11) form? 30 mL of 0.00020 M Ca(NO3)2 + 20 mL of 0.00125 M NaF 20 mL of 0.00020 M Ca(NO3)2 + 30 mL of 0.00125 M NaF 10 mL of 0.00020 M Ca(NO3)2 + 40 mL of 0.00125 M NaF Group of answer choices I only II only I and II I and III

Two analysts each made six determinations of the paracetamol content of the same batch of tablets. The results are shown below:Analyst Paracetamol content % (m/m)A 84.32 84.51 84.63 84.61 84.64 84.51B 84.24 84.25 84.41 84.13 84.00 84.30 How many moles of the analyte P is gravimetrically equivalent to P2O5?A) 1B) 2C) 3D) 4E) 5

(a) How many grams of nickel are contained in 10.0 g of a 10.2 wt% solution of nickel sulfate hexahydrate, NiSO4 ? 6H2O (FM 262.85)? (b) The concentration of this solution is 0.412 M. Find its density.

Prepare the following solutions: 100.0 mL 0.0500 M stock Ca2+ solution 50.0 mL 0.0050 M working standard Ca2+ solution from 0.0500 M Ca2+

Suppose a difference in changes in plasma oxytocin levels between two groups of 0.2 pg/mL would be of interest to researchers and that changes within each group have standard deviation o = 0.1 pg/mL. The power of a one-sided two-sample t-test to detect a difference in changes in oxytocin levels of 0.2 pg/mL between two groups of 5 women at the 5% level is

What is the Qsp when 61.0 mL of 1.50 ✕ 10-4 M AgNO3 are mixed with 80.0 mL of 5.20 ✕ 10-3 M CaCl2? Assume the volumes are additive. Ksp = 1.6 ✕ 10-10.

A sample of anhydrous NaHCO3 (FM = 84.007) is suspected to be contaminated with either NaOH (FM = 39.997) or Na2CO3 (FM = 105.989). To verify the suspicion, a 0.7483 g sample was dissolved to prepare a 50.00 mL solution, and a 10.00 mL aliquot was taken to prepare a 100 mL solution, where 25.00 mL was analyzed using double flask method. If the sample requires 0.45 mL of standard 0.0125 N HCl to reach the phenolphthalein endpoint and 35.95 mL to reach the bromcresol green endpoint, calculate the percentage composition (in %w/w) of all the basic components in the sample.