We assume that we were asked to measure dark-to-dark instead of from the center line to the first dark spot as the value from the center line to the first dark spot is an extremely small difference. This might have also been the case over concerns that the ruler might be more likely to affect the lines created by the laser.
Students losing one month of skills learned in school is a big deal. Poorer students lose much more than the more wealthy students. The New York Times said: "According to a report released last month by the RAND Corporation, the average summer learning loss in math and reading for American students amounts to one month per year. More troubling is that it disproportionately affects low-income students: they lose two months of reading skills, while their higher-income peers.... make slight gains." (Smink) Losing so much during the summer by impoverished students is evident because they do not have the means to learn during the summer. The wealthier families can afford to surround their families with books and other materials during the break. Also many students go to educational camps which the less privileged families cannot afford. There have been different ideas of how to combat this problem. New York City has made mandatory summer school for their students: "In New York, around 34,000 third through eighth graders are required to take summer school classes this year in order to be promoted to the next grade. The classes typically last only half the day, leaving many on their own for the afternoon." (Smink) This is a decent solution for kids who have to go home to a harsh situation or are struggling grade wise. Unfortunately this solution takes some freedom away from the students in a time where they should be learning how to live with freedom. Learning and development are hurt in the impoverished community during summer vacation.
The first step is to add benzoin (0.5 g) and ethanol (4 ml) to an Erlenmeyer flask and swirl gently until it’s fully dissolved. Then, add sodium borohydride (0.1g) in small amounts over a 5-minute time period. After all of it is added gently swirl for twenty minutes. Once the compound is mixed thoroughly cool it in an ice-bath and add water (5 mL) and 6M HCL (.3 mL). Fifteen minutes later add 2.5 mL more water. Set up vacuum filtration and use that to collect the product using ice water to wash the solid. Let the product dry for fifteen minutes and determine the crude yield and melting point. Save a small portion of crude material for TLC analysis. Recrystallize the crude solid using acetone and an Erlenmeyer flask. Use around 1 to 1.5 mL of the solvent. After the compound is crystalized, let it dry and come back during evening hours to take the melting point and final percent yield. The next process is to do the TLC analysis. Dissolve benzoin, recrystallized product, and crude product in ethyl acetate in three separate vials. Set up two separate TLC plates. On the first put dots of starting material, recrystallized product, and a dot of each. On the second plate put a dot of the starting material, the crude product, and one of both together. Place the 9:1 CH2Cl2: ethanol in the TLC developing chambers and add the plates. Let the solution run until its 1cm below the top. Once the plates are finished developing use the UV light and circle the new markings that developed.
The results of the titration experiment we performed went closely to what we expected. We had to prove that K3[Fe(C2O4)3] ·3H2O was produced in the previous experiment, a 3:1 ratio of moles of C2O42- to moles of Fe3+ needed to be calculated from this second experiment, and we ended up with a 2.5:1 ratio. This could all be worked out by determining the number of moles of C2O42- and Fe3+ by solving for moles in the concentration (Molarity) formula, and then using molar ratios from the given chemical equations to find the number of moles of each ion. Having an average ratio of 2.5:1 is a good sign that we did the experiment correctly, but it could have been better. Our first sample had a 2.22:1 ratio which was much worse than sample 2’s 2.8665:1 ratio. This could be since we added slightly more KMnO4 to the 2nd sample. This may have been a more optimal amount for the experiment to proceed correctly. Overall, we did decent job getting the ratio that we desired.
The people who deny global warming do not propose solutions. They deny the fact that humans have an impact on global warming, so they do not propose ways for people to correct it. Often, they take away from the bills and laws people pass to try and lessen global warming. This is happening with the current president. President Trump is a global warming denier, he thinks that the solutions Obama had passed is waste of money. This will have a profound impact upon the earth. “President Donald Trump's planned climate change policies could lead to an extra half a billion tons of greenhouse gases in the atmosphere by 2025, according to a new analysis.” So, this solution for climate change would just take away from all the solutions of the other side. The solutions for the climate change people are to have a cleaner planet. Being a more sustainable society and having renewable energy is the best solution. For the people who oppose the idea that humans have a large impact on climate change, all the solutions seem like a waste of money. So, the solution of the government depend on who has power.
The American Dream is something that a lot of people hold sacred. Many American’s and people who come to America cling onto the dream so as to have some hope for success. The definition of the American Dream according to the book “Chasing the American Dream” by Mark Rank has three parts. First, you have the opportunity to follow your passions. Second, if you work hard you will be successful economically. Lastly, being able to successfully tackle your problems, and have hope and optimism. These definitions were formed according to people’s answers on what the American dream is. Do these definitions really hold true to this day? People who have money would likely tell you yes. You would find a different answer from poverty level Americans.
Slide 22:
Pictures in the diagram on the left are closer than the ones on the right
This could be for the purpose of a better look at the leaves or because the camera wasn't as good
There is a hand in image A on the left but no hand in any other image
The ruler must of had to be moved, it could have been out of the picture initially because the zoom is different
The sizing of images A and C on the right are the same while on the left photos B and C are the same
The camera orientation could have been different, or this organization is more appealing to look at
The coloring appears different between the two diagrams
All the pictures on the left are brighter than the right
This could be purposeful as to make for better observation or the position of the camera could have been under a light.
It's possible the flash was used as well
There are quite a few differences between the diagram of images on the right versus the diagram of images on the left, one of which is that the images on the left are a lot closer up. This could be due to the zooming effect of the camera. Different cameras have different auto zooms so this could have played a role. This could be on purpose to show more observations at a closer view. This also could have had ripple effects, such as the light changing because of the angle of the picture, and the colors looking different. Also, becasue of the fact that it's a closer picture and there has to be a ruler in the picture for size, the ruler had to be moved which casues a hand to be in the picture in the figure on the left.
The studying of ecology, the ways in which different organisms interact with each other and their environments, could prove itself to be very useful in my field of study. This is because many of our medicines have been derived from other organisms directly or about what we’ve learned in these organisms’ behavioral patterns. For example, one of the most recent studies on lobsters provides evidence that humans may be able to slow down the body’s aging process by essentially reconstructing and imitating the telomerase cells found in lobsters. These cells make the lobster biologically immortal as they can live for many years if they avoid being eaten. Without our ability to study these animals’ interactions in their communities we would have never came across such an interesting study.
The studying of ecology: the ways in which different organisms interact with each other and their environments—could prove itself to be very useful in my field of study because many of our medicines have been derived from other organisms directly or about what we’ve learned in these organisms’ behavioral patterns. For example, one of the most recent studies provides evidence that humans may be able to slow down the body’s aging process by essentially reconstructing and imitating the telomerase cells found in lobsters. These cells allow the lobster to be considered biologically immortal as they can live for many years if they avoid being eaten. Without our ability to study these animals’ interactions in their communities we would have never came across such interesting study.
America has drifted into dangerous territories with what we choose to eat. Most things we eat are heavily processed and generally not very good for you. Yes, food is cheaper than it used to be, but no one is buying the right products. A major factor as to why would be the Western Diet. The Western Diet is high in fat, calories, meat, sugar and carbs. All of which are not good for your health in high doses. People do need all of things, but in moderation. The ideology behind the Western Diet is Nutritionism. Nutritionism and food science lead people to think of food as nutrients. The idea is that every element of the food has some sort of benefit and or negative impact on a person. This diet is a large contributor as to why America has an astronomically high obesity rate as made evident in the book “in Defense of Food” by Michael Pollan.
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