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If two samples have identical Rf values does this mean that they are necessarily identical molecules Explain?
No. The molecules MAY (and probably are if you are presented with this situation in school/college lab courses) be identical but just the Rf values is not enough information to determine, you must conduct additional tests. Two different molecules can have the same Rf value.
Compound A will always have an Rf of X in solvent M. Compound B will always have and Rf of Y in solvent M. But, Rf X can be equivalent to Rf Y without compounds A and B being identical.
What else can I help you with?
What is the formula to getting a average?
Sum of all samples divided by the number of samples.
Will all random samples from a given population have the same mean?
Data from random samples will not always include the same values. Values are chosen randomly and they may or may not be the same. So means will vary among random samples.
A chemist weighed three separate test samples at 0.17 gram 0.204 gram and 2.3 grams What is the total weight of the three samples?
2.674 grams
What are the samples of statistical treatment?
Yes its the best example so far
What is the difference between convenience judgment and random sampling?
Non-probability or Judgement Samples has to do with a basic researcher assumptions about the nature of the population, the researcher assumes that any sample would be representative to the population,the results of this type of samples can not be generalized to the population(cause it may not be representative as the research assumed) and the results may be biased. Probability or Random samples is a sample that to be drawn from the population such that each element in the population has a chance to be in the selected sample the results of the random samples can be used in Statistical inference purposes
Do pure substances have identical or diffrent particles?
Pure substances have identical particles. This means that all samples of a pure substance will have the same type and arrangement of particles, whether they are atoms, molecules, or ions. Examples of pure substances include elements and compounds.
When all samples of a material have identical properties and composition it is?
Element
If two samples of matter had completely identical sets of properties what important inference could be made about the two samples?
Nova net answer: They are the same
What are the characteristics of heterogeneous mixtures?
A heterogeneous mixture has two or more distinct phases with different characteristics. Because of this, two random samples of a heterogeneous mixture may have different compositions. For example, the phases in mud are the water and soil particles, which remain distinct from one another. These phases are not necessarily visible, but may exist as microscopic clusters or particles. By contrast in a homogeneous mixture any two random samples will be identical.
Samples are chosen in such a way that each member of the population has a known,though not necessarily equal, chance of being included in the sample?
Random samples
Thermal energy is added to four identical samples of water. what increases in each sample?
When thermal energy is added to four identical samples of water, the temperature of each sample increases, leading to an increase in the kinetic energy of the water molecules. This rise in temperature can also result in an increase in the potential energy of the water molecules as they begin to move further apart, especially as the water approaches its boiling point. Additionally, if sufficient thermal energy is added, the water may eventually change state from liquid to gas (steam), increasing the internal energy further.
Weight of 1000 identical samples of a substance is 10 pounds what is the weight of 10 samples?
The weight of each sample would be 0.01 pounds (10 pounds / 1000 samples). Therefore, the weight of 10 samples would be 0.1 pounds (0.01 pounds x 10 samples).
What conclusion cannot be made from two DNA fingerprints that show identical patterns?
If two DNA fingerprints show identical patterns, we cannot conclude that the individuals from whom the samples were taken are the same person. This is because identical DNA patterns can occur in identical twins, or the samples may come from different individuals with coincidentally similar genetic markers. Additionally, identical patterns do not indicate the specific relationship between the individuals, such as whether they are related or unrelated.
The weight of 1000 identical samples of a substance is 10 pounds what is the weight of 10 samples?
The weight of 1000 samples is 10 pounds, so the weight of each sample is 0.01 pounds. Therefore, the weight of 10 samples would be 0.1 pounds (0.01 * 10 = 0.1).
Which two samples of gas at STP contain the same total number of molecules?
Two samples of gas at STP containing the same total number of molecules would have equal volumes, as Avogadro's Principle states that equal volumes of gases contain equal numbers of molecules at the same temperature and pressure. Thus, 1 mole of any gas at STP will have the same number of molecules as 1 mole of any other gas at STP.
Which two DNA samples are the most similar?
The question itself is not clear. Two cells that have just divided will have the MOST similar DNA. If we are talking about whole organisms or individuals, then clones would have the most similar DNA, similarly identical twins would have near identical DNA. Siblings have very similar DNA but not identical of course.
Do all samples of a substance that can be without?
It seems like your question was cut off. If you meant to ask whether all samples of a substance can be identical, the answer is no. While samples of a pure substance will have the same chemical composition, variations can occur due to impurities or different physical states. Factors such as temperature, pressure, and the method of preparation can also lead to differences in properties between samples.
