Thursday, July 15, 2010
Dilution Problem 2 Blog #4
For this dilution problem we had to prepare a flask containing 500mL of 3M HCl of a 3 M (+/- 0.005M) solution using a 2.5L bottle labeled "11.6M HCl". I honestly didn't do well in this Virtual Lab because I didn't understand what was exactly what we had to do so for this dilution problem what I basically did was pour small portions of 11.6M HCl and distilled water into a 500mL until got precisely 500mL of 11.6M HCl. Unfortunately this didn't work so well because I couldn't seem to get an even amount of 11.6M HCl and distilled water inside the 5oomL without the substances rising above the 500mL.
Thursday, July 8, 2010
Dilution Problem 1 Blog Post #3
At first I tried to figure out what we had to do and I didn't understand how to do it so I decided to mess around with the materials given in the Vitural Lab to figure out what each tool would do. After I figured that out I had to figure out what each substance's reaction was so I chose to pour the several different substances directly in distillied water in order to see what would happen.
Since I had figured out how to use all of the tools given, I chose to start off on the given problem. I chose to pour 75.0mL of C6H1206 into a 250mL beaker. Then I poured 75.0mL of distilled water into the same beaker. After this I just subtracted 25.0mL of the 75.0mL until I was down to 5.0mL.
Since I had figured out how to use all of the tools given, I chose to start off on the given problem. I chose to pour 75.0mL of C6H1206 into a 250mL beaker. Then I poured 75.0mL of distilled water into the same beaker. After this I just subtracted 25.0mL of the 75.0mL until I was down to 5.0mL.
Tuesday, July 6, 2010
Memo Blog #2
High Tech High Media Arts
July 6, 2010
July 6, 2010
Dawn Writs
S.S.
Periodic Table
I think that the school should use the new periodic table because it’s more advanced than the older version of the periodic table therefore the information is more accurate. The fact that the newer version of the periodic table has more elements and is more advanced makes the answers that someone may have precise. I also think that even if the older version of the periodic table is easier to read, since it is in horizontal and vertical columns and rows, the new periodic table has the elements arranged in a better that helps understand why the elements are where they are. For example, “certain elements fit into it uncomfortably; for example, hydrogen sits above lithium, with which it shares few properties.” The fact that Stewart found a way in which people would understand how and why these two elements belong next to each other helps them have a better understanding unlike the older version of the periodic table in which there was a big gap between Hydrogen and Helium. This is why I think that our school should used the more advanced and precise periodic table.
S.S.
Periodic Table
I think that the school should use the new periodic table because it’s more advanced than the older version of the periodic table therefore the information is more accurate. The fact that the newer version of the periodic table has more elements and is more advanced makes the answers that someone may have precise. I also think that even if the older version of the periodic table is easier to read, since it is in horizontal and vertical columns and rows, the new periodic table has the elements arranged in a better that helps understand why the elements are where they are. For example, “certain elements fit into it uncomfortably; for example, hydrogen sits above lithium, with which it shares few properties.” The fact that Stewart found a way in which people would understand how and why these two elements belong next to each other helps them have a better understanding unlike the older version of the periodic table in which there was a big gap between Hydrogen and Helium. This is why I think that our school should used the more advanced and precise periodic table.
Periodic Table Activity Blog #1
1) What different arrangements did your group try during the activity?
My group and I tried many different arrangements. At first we set the elements in by its atomic mass from smallest to greatest. Then we separated each element according to their state matter and also arranged each state of matter by their atomic mass again. After, we looked at the compounds in each element and made rows where there were different types of elements that were similar to other elements because of their compounds. Lastly, we arranged the elements by their atomic number, from smallest to greatest.
2) Why were the Noble Gases (He, Ne, Ar, Kr, etc) missing from the original group?
The reason why the Noble Gases (He, Ne, Ar, Kr, etc) were missing from the original group was because scientist had yet not found these elements.
3) Why is the periodic table set-up in its current arrangement? (Think about your final Periodic Table arrangement.)
The periodic table is set-up in its current arrangement so people can read it easier, have a better understanding, and to be able to find the elements quicker.
4) Is there a better way to set it up? Why or why not?
I think there is probably a better way in which someone will find later on time, but for now i personally think this is the best way to arrange the periodic table.
My group and I tried many different arrangements. At first we set the elements in by its atomic mass from smallest to greatest. Then we separated each element according to their state matter and also arranged each state of matter by their atomic mass again. After, we looked at the compounds in each element and made rows where there were different types of elements that were similar to other elements because of their compounds. Lastly, we arranged the elements by their atomic number, from smallest to greatest.
2) Why were the Noble Gases (He, Ne, Ar, Kr, etc) missing from the original group?
The reason why the Noble Gases (He, Ne, Ar, Kr, etc) were missing from the original group was because scientist had yet not found these elements.
3) Why is the periodic table set-up in its current arrangement? (Think about your final Periodic Table arrangement.)
The periodic table is set-up in its current arrangement so people can read it easier, have a better understanding, and to be able to find the elements quicker.
4) Is there a better way to set it up? Why or why not?
I think there is probably a better way in which someone will find later on time, but for now i personally think this is the best way to arrange the periodic table.
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