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Imagine that your red component of your mixture traveled approximately 2.8 cm from the starting baseine,...
These questions are from an experiment where we had a mixture of Ferrocene, acetylferrocene and diacetyl...
These questions are from an experiment where we had a mixture of Ferrocene, acetylferrocene and diacetyl ferrocene and we separated each by using column chromatography. Before doing the column chromatography we did TLC analysis to ensure that we did, in fact, have a mixture of these 3 compounds. During the column chromatography we first eluted the ferrocene using pure hexane. Then we eluted the acetylferrocene using a 1:1 mixture of hexane and methylene chloride. Then we eluted the diacetylferrocene using...
4. Your research adviser hands you a 3-component mixture and tells you to separate them using...
4. Your research adviser hands you a 3-component mixture and tells you to separate them using column chromatography. You already have some lab savvy so you know to test first by tlc to see if you can find a good solvent system for your column. Shown below are your first 2 developed plates and the solvent systems used. Obviously neither system is appropriate, but you now have a good idea of what to try next (you really, really understand this...
Place approximately 10 mg of each of the four reference compounds in labeled vials or 10 X 75-mm ...
can you solve this for me,
please
Place approximately 10 mg of each of the four reference compounds in labeled vials or 10 X 75-mm test tubes and dissolve the samples in a few drops of methanol. In a fifth tube place a quarter of an analgesic tablet and add 1 mL of methanol. Crush the tablet with a rod, stir well, and allow the insoluble material to settle. Note that aspirin is not stable in methanol, so fresh solutions...
1. Constant Acceleration -1g Spaceship. Imagine that a spaceship can accelerate (starting from rest) at a...
1. Constant Acceleration -1g Spaceship. Imagine that a spaceship can accelerate (starting from rest) at a sustained 1 g (9.8 m/sec') for any desired length of time. Make a table as follows Elapsed time 1 minute 1 hour dadayS 1 week (7 days) 1 month (30 days) m/sec km/sec km/sec km/sec km/sec Distance Travel meters kilometers millions of kilometers billions of kilometers billions of kilometers For each listed time, calculate both the attained velocity and the distance traveled. (The numbers...
5. Would a liquid with high vapor pressure be more likely to be in liquid stationary...
5. Would a liquid with high vapor pressure be more likely to be in liquid stationary phase or gas phase? Why? likely to be 6. When analyzing a GC spectra, you must mark a) your (b) height, and width at (e GC trace. Show your calculations either in your final report or (d) and width at (c), on the sample GC spectra below. Report the retention time of each peak (in minutes), the identity of each component in the mixture,...
finding the total displacement and Total distance traveled Your task is to estimate how far an...
finding the total displacement and Total distance traveled
Your task is to estimate how far an object traveled during the time interval U X t X 8, but you only have the following data about the velocity of the object. time (sec) 012345 6 7 8 velocity (feet/sec) 1 2414-2-1-2-3 To get an idea of what the velocity function might look like, you pick up a black pen, plot the data points, and connect them by curves. Your sketch looks...
-Give a brief background on the role of pigments in photosythensis. -state your hypothesis. -finish with...
-Give a brief background on the role of pigments in
photosythensis.
-state your hypothesis.
-finish with stating the rationale for your hypothesis (how
did you arrive at these hypothesis?)
this is an introduction piece, so it doesn't need the results to
write the papee. introduction sections set up the background,
purpose, rationale, and hypothesis for a study.
Biod 20 PHOTOSYNTHESIS Background Plants harness the energy of the sun through a process called photosynthesis. The leaf is the plant organ that...
Answer one of the following questions in approximately 250-words. 1. Imagine that the town you are...
Answer one of the following questions in approximately 250-words. 1. Imagine that the town you are from was the only city to survive some kind of a nuclear war. Imagine, moreover, that all of the police, firemen, etc. were out of town when the war occurred. How would things look in that town? Consider Hobbes' account of human nature and his account of the state of nature. Could you see your town descending into the kind of state that Hobbes...
starting from rest, a person pedals a bicycle such that the angular acceleration of the wheels...
starting from rest, a person pedals a bicycle such
that the angular acceleration of the wheels is a constant 1.70
rad/s^2. the bicycle wheels are 32.5 cm in radius.....
R i ng for each question part only changes if you submit or change the answer ssignment Scoring our last submission is used for your score. 1. + -11 points SerCP11 7.3.OP.007. My Notes Ask Your Teacher Starting from rest, a person pedals a bicycle such that the angular acceleration of...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent ion= 2.05Smin low Peak 1 Compound Name: athanol Rapesnal utanal aclapeatanal 4.755min oilng 6.895min .230 min Peak 2 Compound Name: Peak 3 Compound Name: Peak 4 Compound Name: GC#:1 Ketone Standard Mixture Retention time 2.575un Peak 1 Compound Name: Acclono Butanon a Pentanone 2tHex anon Peak 2 Compound Name: min Peak 3 Compound Name: 615 min 1D. 307 min Peak 4 Compound Name: Part...
4. Your research adviser hands you a 3-component mixture and tells you to separate them using column chromatography. You already have some lab savvy so you know to test first by tlc to see if you can find a good solvent system for your column. Shown below are your first 2 developed plates and the solvent systems used. Obviously neither system is appropriate, but you now have a good idea of what to try next (you really, really understand this...
can you solve this for me,
please
Place approximately 10 mg of each of the four reference compounds in labeled vials or 10 X 75-mm test tubes and dissolve the samples in a few drops of methanol. In a fifth tube place a quarter of an analgesic tablet and add 1 mL of methanol. Crush the tablet with a rod, stir well, and allow the insoluble material to settle. Note that aspirin is not stable in methanol, so fresh solutions...
1. Constant Acceleration -1g Spaceship. Imagine that a spaceship can accelerate (starting from rest) at a sustained 1 g (9.8 m/sec') for any desired length of time. Make a table as follows Elapsed time 1 minute 1 hour dadayS 1 week (7 days) 1 month (30 days) m/sec km/sec km/sec km/sec km/sec Distance Travel meters kilometers millions of kilometers billions of kilometers billions of kilometers For each listed time, calculate both the attained velocity and the distance traveled. (The numbers...
5. Would a liquid with high vapor pressure be more likely to be in liquid stationary phase or gas phase? Why? likely to be 6. When analyzing a GC spectra, you must mark a) your (b) height, and width at (e GC trace. Show your calculations either in your final report or (d) and width at (c), on the sample GC spectra below. Report the retention time of each peak (in minutes), the identity of each component in the mixture,...
finding the total displacement and Total distance traveled
Your task is to estimate how far an object traveled during the time interval U X t X 8, but you only have the following data about the velocity of the object. time (sec) 012345 6 7 8 velocity (feet/sec) 1 2414-2-1-2-3 To get an idea of what the velocity function might look like, you pick up a black pen, plot the data points, and connect them by curves. Your sketch looks...
-Give a brief background on the role of pigments in
photosythensis.
-state your hypothesis.
-finish with stating the rationale for your hypothesis (how
did you arrive at these hypothesis?)
this is an introduction piece, so it doesn't need the results to
write the papee. introduction sections set up the background,
purpose, rationale, and hypothesis for a study.
Biod 20 PHOTOSYNTHESIS Background Plants harness the energy of the sun through a process called photosynthesis. The leaf is the plant organ that...
starting from rest, a person pedals a bicycle such
that the angular acceleration of the wheels is a constant 1.70
rad/s^2. the bicycle wheels are 32.5 cm in radius.....
R i ng for each question part only changes if you submit or change the answer ssignment Scoring our last submission is used for your score. 1. + -11 points SerCP11 7.3.OP.007. My Notes Ask Your Teacher Starting from rest, a person pedals a bicycle such that the angular acceleration of...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent ion= 2.05Smin low Peak 1 Compound Name: athanol Rapesnal utanal aclapeatanal 4.755min oilng 6.895min .230 min Peak 2 Compound Name: Peak 3 Compound Name: Peak 4 Compound Name: GC#:1 Ketone Standard Mixture Retention time 2.575un Peak 1 Compound Name: Acclono Butanon a Pentanone 2tHex anon Peak 2 Compound Name: min Peak 3 Compound Name: 615 min 1D. 307 min Peak 4 Compound Name: Part...
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