Introduction Flash-Column Chromatography is another useful technique used to separate and purify complex mixtures of compounds. In this experiment‚ TLC is used to determine the best solvent system for the column. Due to Flash-Column Chromatography1 being an inexpensive technique‚ many scientist use this process for drug and natural product purification. Method By using the information from Experiment 6B‚ the TLC solvent system used was 30% EtOAc: 70% Hex. Experiment 7 was broken into two parts‚
Premium
Title: An investigation into the impact of group pressure on an individual’s estimate of the amount of beads in a pot (ginger granules in a jar). IV = Group/Individual DV = Individual beads estimate Abstract This experiment investigated the impact of group pressure on the individual. The hypothesis is that group pressure does indeed impact on the individual and in this case the individual’s estimate of the number of ginger granules in a jar. Participants were asked to make a judgement of
Premium Conformity Asch conformity experiments Mathematics
Purpose: To find the initial velocity of a marble leaving a ramp using time‚ range‚ and background information learned in class. Equipment: The equipment used in this experiment was a toy track and ramp‚ a small marble‚ multiple Physics textbooks‚ meter sticks‚ bright-colored cardstock‚ masking tape‚ sidewalk chalk‚ plastic bag and a cloth. Procedure: Our experimental values include the height that the marble would travel‚ y= 88.1 cm‚ and our ramp angle‚ θ= 44.0°. These independent variables
Premium Measurement Orders of magnitude Regression analysis
float. Any object with density more than that will sink. Carbon dioxide‚ or CO2‚ also played a big role in this experiment. Many soft drinks contain CO2. Studies show that Sierra Mist had the most carbonation out of most soft drinks. There was a lot of carbon dioxide in the soda. That was the reason the raisins would float up and down. There were many purposes to this experiment. One purpose was to teach us about density when we saw how the raisins floated to
Premium Carbon dioxide Soft drink High-fructose corn syrup
the okay to do the experiment‚ I grabbed the girls and went to work. The experiment I picked was the conservation concept‚ where the idea that merely changing the appearance of objects does not necessarily change other key properties. In other words‚ just because I put the same amount of water in a bigger case‚ doesn’t change how much water there is. I predict that both the girls would fail at conservation concept‚ and always
Premium Pregnancy Childbirth Abortion
interaction Milgram’s experiment is to study the effect of obedience to authority. Study was performed to determine what factors influenced people to submit to authority and to what extent people conform an order against their conscience despite knowing it causes distress and harm to another person. McLeod‚ S. (1970). 40 male participants between age of 20 to 50 years old from various occupation ranging from unskilled to professional were recruited for the experiment. They were rewarded $4.50
Premium Psychology Stanford prison experiment Milgram experiment
Are you looking for a fun experiment that you can perform for a psychology class? This experiment on gender and memory is relatively quick and easy to perform‚ which is a bonus if you are short on time and resources. Could gender differences play a role in short-term memory? We often hear women complain that their husbands can’t remember important dates like anniversaries or birthdays‚ but could this phenomenon be due to something like memory differences between men and women. Some previous research
Premium Statistics Short-term memory Gender
analogue experiment blind design case study confound control group correlation correlational method dependent variable double-blind design epidemiological study A research method in which the experimenter produces abnormal-like behavior in laboratory participants and then conducts experiments on the participants. An experiment in which participants do not know whether they are in the experimental or the control condition. A detailed account of a person’s life and
Free Scientific method Experiment Hypothesis
Throughout the experiments the size of the balloons stayed about the same size except for in experiment 3. Also the bottles that had more sugar had a stronger scent of alcohol and also contained more foam on top of the liquid. All yeast in each of the bottles seemed to have fermented at the same time and stopped/slowed down‚ the growing process‚ at the same time. Bottle 3 also would always overflow and the foam would fill the ballon in every experiment. Another trend with bottle 3 was that in the
Premium Oxygen Carbon dioxide
To perform the experiment‚ first the calorimeter was filled with 100 mL of water using a graduated cylinder‚ and the temperature of the water was found and recorded. Next‚ the beaker was filled 3/4 full with water and placed on the stand of the ringstand above a gently burning
Premium Temperature Thermodynamics Water