Why Children Need Mandated Reporters
4 days ago
Monday, March 5, 2012
IB
Why is it called IB, when it should be called don't IB. You get what I'm saying. What I want to say is that the IB curriculum is pretty challenging in the sense that one has to do a lot of good to excellent assignments at once and the most difficult part is to see where one should focus his/her energy and brain at each stage, day, or whatever... I got a lot of homwork today and I am still only starting, so while I would love to keep chatting, I can't, but this post is meant to say that I will be blogging again sometime this year about an ineresting subect, what ever that may be, and that you will have fun reading it, but it wount be before at least a month. Thank you world, and have a good day.
Saturday, November 26, 2011
Saturday, August 20, 2011
RMA vs FCB- The Clash of the Tacticals !
This year saw epic battles between the two giants of Spanish football (A.K.A. EL Classico). Two teams faced eachother seven times this year, each time it was the biggest step these teams went towards a trophy. The latest of these matches occured two days ago (the 17th of August). Battles were fought (literaly) and insults were thrown out by various angered competitors. The worst of these came from the Real Madrid coach, Jose Morhinio. After he pulled a man`s ear and made gesters that would indicate that Messi stinks, he also taped a player`s head for God knows why ! As a blogger, I believe that it was childish and stupid; now, how can `` The Special One`` be considered as best coach. Real Madrid fought long and hard ( that`s what she said), but Pep`s side was confident that it was their cup to own. ``It was Cesc Fabregas that this cup was won for``, Messi would of said if he had. Anyways, back on real Earth, in Morocco, tonight is one of Wydad`s most vital games (God help them). On a side note: While Spanish players wine for money, all of Wydad`s players don`t even get paid as much as Cristiano or Messi; ungreatful.
Friday, July 30, 2010
Disney hires NEW ACTOR and more....
Walt Disney Pictures presents TANGLED, one of the most hilarious, hair-raising tales ever told. When the kingdom’s most wanted—and most charming—bandit Flynn Rider (voice of ZACHARY LEVI) hides out in a mysterious tower, he’s taken hostage by Rapunzel (voice of MANDY MOORE), a beautiful and feisty tower-bound teen with 70 feet of magical, golden hair. Flynn’s curious captor Rustill (Voice of OUALID SLAOUI), who’s looking for his ticket out of the tower where she’s been locked away for years, strikes a deal with the handsome thief and the unlikely Trio sets off on an action-packed escapade, complete with a super-cop horse, an over-protective chameleon and a gruff gang of pub thugs. In theaters this holiday season in Disney Digital 3D™, TANGLED is a story of adventure, heart, humor and hair—lots of hair.
Monday, May 10, 2010
Vocabulary: Meaning of the words
Mohamed Slaoui Vocabulary: Meaning of the words
1. TranquilàMaycomb was a clam, placid, and quiet old town, but Mr. Nathan Radley did not leave tranquil life in the country free from disturbance. He was everything but tranquil, agitated and losing self-possession.
2. Oppressiveà The oppressive sorrow that roamed the room weighed heavily on my senses and spirit.
3. Essenceà The essence, most fundamental reason, of the gangs’ reasons for fighting in New York is that it was tradition.
4. Appallingà "The shocking behaviour of Alex appalled her friends striking them with disgust and revulsion, so they never spoke to her again.
5. Venerableà As all venerable wise men are, my father has white hair and beard.
6. ScriptureàSister Dawn carried the bible, the Christian holly book, to a Christian Youth Minister. She was careful not to drop it because that Scripture was writing regarded as sacred by her religious group.
7. Amberà A deep yellow colour came from my brother’s. As I entered, I saw the amber light illuminating his room.
8. Aridà Mr. Amine, the high school music teacher, said that in theory Asni’s performance was perfect, but it was an arid piece of music lacking energy and strength, almost dead.
9. CandidàWithout trying to avoid the unpleasant truth about what happened on November 21st and characterized by honesty, Mayella told the judge and Atticus that it was her father that raped her and not Tom.
10. Impudentà The casual disrespect the students had for the teachers was characterized as impudent behaviour.
Vocabulary: Meaning of the words
Mohamed Slaoui Vocabulary: Meaning of the words
1. TranquilàMaycomb was a clam, placid, and quiet old town, but Mr. Nathan Radley did not leave tranquil life in the country free from disturbance. He was everything but tranquil, agitated and losing self-possession.
2. Oppressiveà The oppressive sorrow that roamed the room weighed heavily on my senses and spirit.
3. Essenceà The essence, most fundamental reason, of the gangs’ reasons for fighting in New York is that it was tradition.
4. Appallingà "The shocking behaviour of Alex appalled her friends striking them with disgust and revulsion, so they never spoke to her again.
5. Venerableà As all venerable wise men are, my father has white hair and beard.
6. ScriptureàSister Dawn carried the bible, the Christian holly book, to a Christian Youth Minister. She was careful not to drop it because that Scripture was writing regarded as sacred by her religious group.
7. Amberà A deep yellow colour came from my brother’s. As I entered, I saw the amber light illuminating his room.
8. Aridà Mr. Amine, the high school music teacher, said that in theory Asni’s performance was perfect, but it was an arid piece of music lacking energy and strength, almost dead.
9. CandidàWithout trying to avoid the unpleasant truth about what happened on November 21st and characterized by honesty, Mayella told the judge and Atticus that it was her father that raped her and not Tom.
10. Impudentà The casual disrespect the students had for the teachers was characterized as impudent behaviour.
Thursday, May 6, 2010
,Graham’s law
,Graham’s law addresses effusion or the quick and random motion of tiny gas molecules. The escape of tiny gas molecules through very small openings is defined as effusion.
Why does a helium balloon lose its helium? The helium is enclosed in a container, usually a good balloon. The holes through which the helium is escaping might be only about the size of the atoms or molecules that are escaping, so the helium can very gradually effuse through those tiny openings.
In another example, you may have a bottle of a gas sealed in a way that you think is very tight. You find that the gas has effused. Effusion is the escape of gas molecules through very small openings. The rate of this motion, how rapidly it will effuse, is definitely related to the kinetic energy of the molecules. Ek=1/2Mv¬2
V2= the mean square speed or the average square speed
M= the mass
E= kinetic energy
You should know that the kinetic energy of a gas is directly related to temperature. If you increase the temperature then you increase the kinetic energy of the gas. You are going to increase the rate at which it will effuse or escape. The law is frequently stated as: rates of effusion of different gases at the same conditions are inversely proportional to the square roots of their molecular masses. In other words, the heavier the gas, the more slowly it effuses. The lighter the gas, the faster it effuses: Ra x √(Ma=rb x √Mb) . The mass referred to is the molecular mass. Rate is always expressed per unit time. For example, it could be expressed in liters per minute.
If oxygen effuses from a container at the rate of 3.64 ml/sec, what is the molecular weight of a gas effusing from the same container at 4.48 ml/ sec? The second gas is effusing more rapidly; therefore, the second gas has a lesser molecular weight.
Ra x √(Ma=rb x √Mb)
3.64 ml/sec. X √(32g/1=) 4.48 ml/s* √Mb
√Mb=4.50
Mb= 4.50 * 4.50
Mb= 22.2 g/ mol
The second gas is significantly lighter than oxygen.
Hydrogen is less dense than air: two grams per mole. The hydrogen is moving at a greater velocity than air because smaller particles move at a greater rate of speed. As hydrogen moves through a person’s vocal cords, it will cause the vocal cords to vibrate faster and increase the pitch of the voice. Hydrogen increases the pitch of the voice because gas moves to the vocal cords at a higher rate of speed than air. A gas denser than air will move more slowly through the vocal cords, causing them to vibrate more slowly, decreasing their frequency and thus the pitch of the voice.
Graham’s Law of Diffusion
Bibliography of resources for background research
A Scottish physical chemist formulated Graham's law, better known as Graham's law of effusion. Thomas Graham discovered that the rate of effusion of a gas is inversely proportional to the square root of the mass of its particles, so it was named after him (Graham).As I stated above, he found out through experimentation that the rate of effusion of a gas is inversely proportional to the square root of the mass of its particles. I did not have to learn any new science because I understood everything that I read, for I learned about the different parts of the topic separately years ago. This does not mean that I did no research.
Notes
Gases have no definite volume.
They spread out and dwell in all the space accessible to them. This dispersal of gases is called diffusion. A gas will diffuse even if another gas is present in the same space. The molecules of gases are far enough apart to allow other gas molecules to fit in between.
Gases diffuse at different rates.
Graham's law states that, under equal conditions of temperature and pressure, gases diffuse at rates inversely proportional to the square roots of their molecular masses.
The term rate implies that something happens in a given period of time. The rate of diffusion of a gas is the distance its molecules travel per unit time.
Resources:
a. http://en.wikipedia.org/wiki/Graham's_law
b. http://www.citycollegiate.com/grahams_lawXI.htm
c. http://www.chem.tamu.edu/class/majors/tutorialnotefiles/graham.htm
d. http://www.molecularsoft.com/help/Gas_Laws-Effusion_Diffusion.htm
e. http://library.thinkquest.org/12596/graham.html
In taking the experimental error into consideration, Graham’s law work as it was supposed to. This experiment be used to find the molecular mass of an unknown gas by pulging in the numbers given and useing algebra for figuring out the rese.
“Faster-moving molecules can escape faster than others through small holes in containers, and this escape is called effusion. They can also mix more rapidly with other gases by diffusion. These are usually done under constant temperature, “and so the relative rates of diffusion or effusion of two gases A and B depend only on the molar masses MA and MB:”
In the same period of time, the distance diffused by heavier gas, which has a greater molecular mass, will be less than that of a lighter gas. In this experiment, HCl and NH3, ammonia, (two gases) willl start to diffuse at the same time from opposite ends of a glass tube. Where the two gases meet, a chemical reaction will take place producing a white powder. By comparing the ratio of the distances traveled with the ratio of the square roots of the known molecular masses of the two gases, Graham's law can be confirmed.
EQUIPMENT
Glass tube
Two dropper pipets
Safety goggles
Cotton
Lab apron
Marking pencil
MATERIALS
HCl (con.)
NH3 (ammonia)
Water (for washing the test tube)
Fan (for drying the test tube)
SAFETY
Hold concentrated HCl and the concentrated NH3 carefully avoid getting then on your skin.
PROCEDURE
1. Find glass tubing, and make sure it is completely dry. Lay the tubing on your worktable preferably with a support.
2. Place cotton in each end of the tubing.
3. Remove the cotton pieces from the tubing. Using dropper pipettes, place about five drops of concentrated HCl on the one cotton peace and five drops of concentrated NH3 on the other cotton peace.
4. Right away and at the same time, place the cotton pieces into opposite ends of the tube.
5. After some time, a white ring will form where the gases meet to form a compound, NH4C1 (ammonium chloride). Mark the place on the tube where the white ring appeared.
6. Measure the distance traveled by each gas.
7. Remove the cotton peaces and rinse the tubing with water. Then wait for it to dry. Using a fan could help make the process go faster.
9. The procedure can be repeated to be sure of the results.
OBSERVATIONS AND DATA
Trial 1, trial 2, and the average of 2 trials
Distance traveled by NH3 35, 34.5, and 34.75
Distance traveled by HCl 16, 16.5, and 16.25
Molecular masses are: NH3 = 17
HCl = 36,5
CALCULATIONS:
1. Calculate the ratio: Distance NH3/ Distance HCl
Trial 1 35/16
2. Calculate the ratio: Distance NH3/ Distance HCl
Trial 2 34.5/16.5
Why does a helium balloon lose its helium? The helium is enclosed in a container, usually a good balloon. The holes through which the helium is escaping might be only about the size of the atoms or molecules that are escaping, so the helium can very gradually effuse through those tiny openings.
In another example, you may have a bottle of a gas sealed in a way that you think is very tight. You find that the gas has effused. Effusion is the escape of gas molecules through very small openings. The rate of this motion, how rapidly it will effuse, is definitely related to the kinetic energy of the molecules. Ek=1/2Mv¬2
V2= the mean square speed or the average square speed
M= the mass
E= kinetic energy
You should know that the kinetic energy of a gas is directly related to temperature. If you increase the temperature then you increase the kinetic energy of the gas. You are going to increase the rate at which it will effuse or escape. The law is frequently stated as: rates of effusion of different gases at the same conditions are inversely proportional to the square roots of their molecular masses. In other words, the heavier the gas, the more slowly it effuses. The lighter the gas, the faster it effuses: Ra x √(Ma=rb x √Mb) . The mass referred to is the molecular mass. Rate is always expressed per unit time. For example, it could be expressed in liters per minute.
If oxygen effuses from a container at the rate of 3.64 ml/sec, what is the molecular weight of a gas effusing from the same container at 4.48 ml/ sec? The second gas is effusing more rapidly; therefore, the second gas has a lesser molecular weight.
Ra x √(Ma=rb x √Mb)
3.64 ml/sec. X √(32g/1=) 4.48 ml/s* √Mb
√Mb=4.50
Mb= 4.50 * 4.50
Mb= 22.2 g/ mol
The second gas is significantly lighter than oxygen.
Hydrogen is less dense than air: two grams per mole. The hydrogen is moving at a greater velocity than air because smaller particles move at a greater rate of speed. As hydrogen moves through a person’s vocal cords, it will cause the vocal cords to vibrate faster and increase the pitch of the voice. Hydrogen increases the pitch of the voice because gas moves to the vocal cords at a higher rate of speed than air. A gas denser than air will move more slowly through the vocal cords, causing them to vibrate more slowly, decreasing their frequency and thus the pitch of the voice.
Graham’s Law of Diffusion
Bibliography of resources for background research
A Scottish physical chemist formulated Graham's law, better known as Graham's law of effusion. Thomas Graham discovered that the rate of effusion of a gas is inversely proportional to the square root of the mass of its particles, so it was named after him (Graham).As I stated above, he found out through experimentation that the rate of effusion of a gas is inversely proportional to the square root of the mass of its particles. I did not have to learn any new science because I understood everything that I read, for I learned about the different parts of the topic separately years ago. This does not mean that I did no research.
Notes
Gases have no definite volume.
They spread out and dwell in all the space accessible to them. This dispersal of gases is called diffusion. A gas will diffuse even if another gas is present in the same space. The molecules of gases are far enough apart to allow other gas molecules to fit in between.
Gases diffuse at different rates.
Graham's law states that, under equal conditions of temperature and pressure, gases diffuse at rates inversely proportional to the square roots of their molecular masses.
The term rate implies that something happens in a given period of time. The rate of diffusion of a gas is the distance its molecules travel per unit time.
Resources:
a. http://en.wikipedia.org/wiki/Graham's_law
b. http://www.citycollegiate.com/grahams_lawXI.htm
c. http://www.chem.tamu.edu/class/majors/tutorialnotefiles/graham.htm
d. http://www.molecularsoft.com/help/Gas_Laws-Effusion_Diffusion.htm
e. http://library.thinkquest.org/12596/graham.html
In taking the experimental error into consideration, Graham’s law work as it was supposed to. This experiment be used to find the molecular mass of an unknown gas by pulging in the numbers given and useing algebra for figuring out the rese.
“Faster-moving molecules can escape faster than others through small holes in containers, and this escape is called effusion. They can also mix more rapidly with other gases by diffusion. These are usually done under constant temperature, “and so the relative rates of diffusion or effusion of two gases A and B depend only on the molar masses MA and MB:”
In the same period of time, the distance diffused by heavier gas, which has a greater molecular mass, will be less than that of a lighter gas. In this experiment, HCl and NH3, ammonia, (two gases) willl start to diffuse at the same time from opposite ends of a glass tube. Where the two gases meet, a chemical reaction will take place producing a white powder. By comparing the ratio of the distances traveled with the ratio of the square roots of the known molecular masses of the two gases, Graham's law can be confirmed.
EQUIPMENT
Glass tube
Two dropper pipets
Safety goggles
Cotton
Lab apron
Marking pencil
MATERIALS
HCl (con.)
NH3 (ammonia)
Water (for washing the test tube)
Fan (for drying the test tube)
SAFETY
Hold concentrated HCl and the concentrated NH3 carefully avoid getting then on your skin.
PROCEDURE
1. Find glass tubing, and make sure it is completely dry. Lay the tubing on your worktable preferably with a support.
2. Place cotton in each end of the tubing.
3. Remove the cotton pieces from the tubing. Using dropper pipettes, place about five drops of concentrated HCl on the one cotton peace and five drops of concentrated NH3 on the other cotton peace.
4. Right away and at the same time, place the cotton pieces into opposite ends of the tube.
5. After some time, a white ring will form where the gases meet to form a compound, NH4C1 (ammonium chloride). Mark the place on the tube where the white ring appeared.
6. Measure the distance traveled by each gas.
7. Remove the cotton peaces and rinse the tubing with water. Then wait for it to dry. Using a fan could help make the process go faster.
9. The procedure can be repeated to be sure of the results.
OBSERVATIONS AND DATA
Trial 1, trial 2, and the average of 2 trials
Distance traveled by NH3 35, 34.5, and 34.75
Distance traveled by HCl 16, 16.5, and 16.25
Molecular masses are: NH3 = 17
HCl = 36,5
CALCULATIONS:
1. Calculate the ratio: Distance NH3/ Distance HCl
Trial 1 35/16
2. Calculate the ratio: Distance NH3/ Distance HCl
Trial 2 34.5/16.5
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