Explain why should the jar used to cover the tlc plates be
1.Explain why should the jar used to cover the TLC plates be covered?
2.Suggest a reason that TLC plates that are stored in a highly humid room result in different Rf value s than plates that are stored in a dehumidified environment.
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Discuss how some solid samples (compounds that are solid at room temperature) can be analyzed by gas chromatography and explain how they would be introduced into the injector port and column.
A plane flies from the base camp to Lake A, 270 km away in the direction 20.0° north of east. After falling off supplies it flies to Lake B that is 260 km at 30.0° west of north from Lake A. Graphically find out the distance and direction
Discuss why must the injection port and the detector always be heated to higher temperatures than the column in a gas chromatograph?
An independent-measures research study employs two samples, each with n = 12 participants. If the data produce a t statistic of t = 2.08, then which of following is the correct decision for two-tailed hypothesis test?
Suggest a reason that TLC plates that are stored in a highly humid room result in different Rf value s than plates that are stored in a dehumidified environment.
Determine what force does the seat apply on the child if the child is halfway between the top and bottom? (Suppose the Ferris wheel is rotating clockwise and the child is moving upward.)
A researcher takes a sample and desires to compare the results to population from which it was drawn. The independent variable is "gender" and dependent variable is a yes/no response to whether they favor the abortion. What test would the research
Explain that why the spots should apply to the TLC plate be kept as small as possible? Suggest a good method to confirm that the two samples are the same or not the same.
Throughout a drive by a golfer, the angular velocity of club is zero at the top of the backswing and 30 rad/s at the bottom of the downswing just before impact with the ball. When the downswing lasts 0.30 s, determine the average angular accelerat
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but I would like to discuss to what extent employers should/should not influence or curb political participation in their workplaces.
Suppose you are the head of an island nation with a poor, growing population and the natural resources of the island are being degraded.
Question: What was the economic and political impact, if any protect the health and welfare to citizens ?
Problem: Article 3 of the Texas Constitution sets up the Texas Legislature. It also does which of the following?
Summarize how the ERA can be ratified and explain why this is the most likely way. You will draw on instances that are important to you
Which amendment to the U.S. Constitution is often called the "States' Rights Amendment" and is commonly used by states to challenge
Mechanisms of State-Led Development:** - **Industrial Policy:** Both countries used targeted industrial policies to support specific sectors, such as electroni