May 4‚ 2013 In a laboratory experiment‚ a student reacted 2.8 grams of Fe (s) (steel wool) in excess CuSO4 (aq)‚ according to the following balanced equation: Fe(s) + CuSO4 (aq) -> FeSO4 + Cu(S). When the Fe(s) was completely consumed‚ the precipitated Cu had a mass of 3.2 grams. Did the student’s result on this experiment verify the mole ratio of Fe(s) to Cu as predicted by the equation? Answer: yes‚ because the experiment result was 2:1 Calculate the mole ratio
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project‚ Hypothesis/Null Hypothesis 2.0 Method 2.1 Vivarium 2.2 Equipment 2.3 Apparatus Construction 2.4 Experiment Method 2.5 Control Experiment Method 2.6 Control of Variables 3.0 Results 3.1 Experiment 3.2 Control Experiment 3.3 Statistical analysis‚ Chi square 4.0 Discussion 4.1 Discussion of the Experiment results 4.2 Discussion of the Control Experiment Results 4.3 Discussion of the Statistical Analysis 4.4 Critique of methodology 5.0 Conclusion 5.1 Summary
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in 1972. The aim of the research was to find out how context influenced the process of comprehension and recall of the information. In order to get the accurate data‚ 4 experiments were carried out. Five groups‚ each consisting of ten participants‚ took part in Experiment I (Bransford 718). The materials used for the experiment were as following: a picture‚ describing a situation‚ a picture partially related to the situation‚ a passage of the text‚ experimental sheets. The groups were subdivided
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The ways in which the experiments presented above differ is in regard to the setting in which they are conducted. Some are laboratory experiments that take place in a setting created by researchers‚ and others such as field experiments are conducted in a participants natural setting. Additional ways for communication researchers to conduct there studies would be research questionnaires which ask participants to write their answers to questions researchers pose and panel studies which are surveys
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that there is causation as well as correlation. I believe that she does explain all of these aspects well making her claim credible. The first aspect of this article that we need to look at is whether or not the experiment defines all the words in her claim. For example‚ does the experiment define what a child is‚ what adulthood is‚ what bullying is‚ and so on. In this aspect I feel that she has done a good job. Louis (2013) shows us that a child is considered 9-16 years old and adulthood is considered
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Date Performed: _______ Experiment #: ________ 1. Objectives: Briefly in your own words‚ explain what experiment(s) you performed in the lab. This is similar to the Objectives section list in the lab instruction. But keep it to a small paragraph. [pic] 2. Introduction: Describe the broad goals of the experiment‚ the major principles involved‚ and how you can experimentally check/use them. For example‚ in describing the voltage divider‚ current divider experiment‚ you can describe that as
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The Feeding Behavior of the Protist known as Tetrahymena vorax Abstract The purpose of this experiment was to study the rate of phagocytosis of the specific protist known as Tetrahymena vorax. This certain kind of protist feeds at a normal rate when conditions are normal. We began the experiment of understanding how Tetrahymena feeds at normal temperatures. Doing so‚ we allowed the Tetrahymena to feed at specific time limits and then killed the protist with gluderaldheyde to detect how much
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Once the experiment was over the results showed that the head end was able to retain the learning by classical condition better than the tail end could. There were more positive reactions with the head compared to the tail. It was not a drastic difference‚ but the head it was able to retain the learning slightly better than the tail end did. Not everything goes as planned so there were some experiment where the planarian was lost or it died. Some planaria did not retain the information before it
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The use of animals to test human drugs and cosmetic products and to conduct pointless laboratory experiments is unconventional. Humans and animals are similar‚ but they are not identical‚ so using animals to test products intended for humans does not make sense. Each year millions of animals are killed or badly maimed in laboratory experiments. Animal testings must be banned. The tests are usually proven to be ineffective‚ they waste tremendous amounts of money‚ the tests are cruel‚ and there are
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cold or flu. In order to see if using anti-bacterial gels prevents getting the flu or a cold an experiment must be performed with the teachers. The experiment must be properly performed by randomly dividing the teachers into groups so that outcomes are not altered by race‚ age‚ or sex. The experiment breaks down as follows : The Hypothesis A hypothesis is an educated prediction of an experiment based on the factors. In this case it is my hypothesis that using anti-bacterial will help prevent
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