Homework Answers
Request Answer!
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Add Answer to:
An unknown was analyzed by GC for limonene using butylbenzene as an internal standard. A plot...
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 ?
Imported ceramic bowls are analyzed for toxic heavy metals such as cadmium since these metals can...
Imported ceramic bowls are analyzed for toxic heavy metals such as cadmium since these metals can be leached from the ceramic by the food in contact with it. The amount of cadmium that can be leached from the bowl is determined by adding an acetic acid solution to the bowl for a 24 hour period, after which the cadmium concentration in the acidic leaching solution is determined. In one experiment, the cadmium concentration in an acidic leaching solution was analyzed...
Pyrene was analyzed using GC-MS at the selected ion mode. The calibration curve of peak area (GC-MS response) vs. concentration is shown below along with the regression output. A blank sample was ana...
Pyrene was analyzed using GC-MS at the selected ion mode. The calibration curve of peak area (GC-MS response) vs. concentration is shown below along with the regression output. A blank sample was analyzed seven times, giving a mean peak area of 125 and standard deviation of 15. A check standard at 0.5 ppm was also measured seven times, giving a standard deviation of 300. The raw data, Excel's printouts of linear regression along with the line plot are attached. (a)...
Compare the GC graphs of distillate and the standard sample then calculate the amount of limonene...
Compare the GC graphs of distillate and the standard sample then
calculate the amount of limonene present in your distillate (mg/ml)
5.054g orange zest intial to form original distillate + 50ml
DI water
25 ml of distilate obtained
then added 10 ml Ethyl Acetate
Mixed ,seperated and took OG layer
Standard was 8.4 mg/ml
* second photo
SHIMADZU LabSolutions Analysis Report <Sample Information> Sample Name CW Sample ID Data Filename UNK 2_136C_TRIAL11.gcd Method Filename :212 Limonene gcm Batch Filename UNK...
Question: Prelab Question #2: A student has weighed out 850 mg of 1-pentanol in 50 mL...
Question:
Prelab Question #2: A student has weighed out 850 mg of 1-pentanol in 50 mL volumetric flask and prepared four standard solutions as described in this procedure. Calculate concentrations of 1-pentanol in mg/mL in each of these solutions. Instructional Videos to Watch before Lab Fundamentals of GC EXPERIMENTAL PROCEDURE Preparation of Solutions. Get a glassware bin from your TA. Rinse five 10 .00 mL volumetric flasks with 2-propanol (isoproponal) to remove any al cohols remaining in the nprevious usage....
3. Suppose that an unknown sample is analyzed spectrophotometrically at the same wavelength that was used...
3. Suppose that an unknown sample is analyzed
spectrophotometrically at the same wavelength that was used for the
standard curve and the absorbance was found to be 0.196. Use the
standard curve to find the concentration of the unknown.
1. Calculate the concentration of a solution prepared by adding 15.00 mL of 1.98 x 10-3 M KMnO, from a buret into a 50.00 mL volumetric flask, which is then filled to the 50.00 mL graduation mark with distilled water. Hint:...
Imported ceramic bowls are analyzed for toxic heavy metals such as cadmium since these metals can be leached from the ceramic by the food in contact with it. The amount of cadmium that can be leached from the bowl is determined by adding an acetic acid solution to the bowl for a 24 hour period, after which the cadmium concentration in the acidic leaching solution is determined. In one experiment, the cadmium concentration in an acidic leaching solution was analyzed...
Pyrene was analyzed using GC-MS at the selected ion mode. The calibration curve of peak area (GC-MS response) vs. concentration is shown below along with the regression output. A blank sample was analyzed seven times, giving a mean peak area of 125 and standard deviation of 15. A check standard at 0.5 ppm was also measured seven times, giving a standard deviation of 300. The raw data, Excel's printouts of linear regression along with the line plot are attached. (a)...
Compare the GC graphs of distillate and the standard sample then
calculate the amount of limonene present in your distillate (mg/ml)
5.054g orange zest intial to form original distillate + 50ml
DI water
25 ml of distilate obtained
then added 10 ml Ethyl Acetate
Mixed ,seperated and took OG layer
Standard was 8.4 mg/ml
* second photo
SHIMADZU LabSolutions Analysis Report <Sample Information> Sample Name CW Sample ID Data Filename UNK 2_136C_TRIAL11.gcd Method Filename :212 Limonene gcm Batch Filename UNK...
Question:
Prelab Question #2: A student has weighed out 850 mg of 1-pentanol in 50 mL volumetric flask and prepared four standard solutions as described in this procedure. Calculate concentrations of 1-pentanol in mg/mL in each of these solutions. Instructional Videos to Watch before Lab Fundamentals of GC EXPERIMENTAL PROCEDURE Preparation of Solutions. Get a glassware bin from your TA. Rinse five 10 .00 mL volumetric flasks with 2-propanol (isoproponal) to remove any al cohols remaining in the nprevious usage....
3. Suppose that an unknown sample is analyzed
spectrophotometrically at the same wavelength that was used for the
standard curve and the absorbance was found to be 0.196. Use the
standard curve to find the concentration of the unknown.
1. Calculate the concentration of a solution prepared by adding 15.00 mL of 1.98 x 10-3 M KMnO, from a buret into a 50.00 mL volumetric flask, which is then filled to the 50.00 mL graduation mark with distilled water. Hint:...
Most questions answered within 3 hours.
-
Based on how much or how little you have noticed in the media,
do you think...
asked 1 hour ago -
I calculate Rosetta Stone’s P/E ratio as 10x prior to a report
about future industry growth....
asked 2 hours ago -
What major physiological changes account for electrodermal
activity (as in during a lie-detector test)?
asked 3 hours ago -
You are going to sell fruits & vegetables at a local
roadside market. List separately and...
asked 4 hours ago -
Hows does water affect the digestion of fats ?
asked 6 hours ago -
A buffer that contains 0.41 M of a base, B and 0.21 M of its
conjugate...
asked 6 hours ago -
Pleaaaaaaaasssssse help me please please it's more important
:((((((((((((((((((((
CASE STUDY
Nissan Company
Nissan Motor Company,...
asked 6 hours ago -
Calculate the concentration of hydronium and hyroxide ions in 1)
2.0 mol/L HNO3 2) 0.5 mol/L...
asked 6 hours ago -
In a loop-the-loop ride a car goes around a vertical, circular
loop at a constant speed....
asked 6 hours ago -
50 grams each of water (18.015 g/mol) and ethylene glycol
(C2H6O2) (62.07 g/mol) are mixed. At...
asked 6 hours ago -
The life expectancy of sport utility vehicles follows a normal
distribution with a mean of 145.8...
asked 7 hours ago -
If an object with mass of 5 kg is pushed with a force of 552 N,...
asked 6 hours ago