Sunday, March 22, 2020

What factors affect the Rate of a Reaction Essay Example For Students

What factors affect the Rate of a Reaction? Essay ObjectiveCompare the rates of reaction under varying conditions. MaterialsSafety goggles, lab apron, magnesium ribbon, scissors, metric ruler, 25-mL graduate, hydrochloric acid, 50-mL Erlenmeyer flask, 250-mL beaker, timer. ProcedureA. Wear safety goggles and lab apron throughout this activity. We will write a custom essay on What factors affect the Rate of a Reaction? specifically for you for only $16.38 $13.9/page Order now B. Draw a data table like the one shown. C. Cut a piece of magnesium ribbon 2cm long. D. Measure 10mL of hydrochloric acid and pour it into an Erlenmeyer flask. E. Place the flask in a 250-mL beaker half full of cold tap water. Chill the flask for 3 minutes, then take it out of the water. CAUTION: Hold the flask so that it doesnt tip over into the water. F. Carefully slide the magnesium strip into the acid. CAUTION: Be careful not to splash the acid when adding the magnesium. G. Record the time needed to dissolve the magnesium in the acid. H. Empty and wash the flask according to your teachers instructions. I. Repeat steps C and D. J. Warm the flask in a 250-mL beaker half full of very hot tap water for 3 minutes. K. Carefully slide the magnesium into the acid. L. Record the time needed to dissolve the magnesium in the acid. M. Empty and wash the flask. N. Measure 10mL of hydrochloric acid and pour it into the flask. O. Cut a piece of magnesium ribbon 2cm long. P. Roll the magnesium ribbon into a tight ball. Q. Carefully slide the magnesium metal into the acid. R. Record the time required to dissolve the magnesium in the acid. S. Empty and wash the flask. T. Measure 10mL of hydrochloric acid and pour it into the flask. U. Cut a piece of magnesium ribbon 2cm long. V. Cut the magnesium ribbon into fine silvers. W. Add the magnesium to the acid in the flask. X. Record the time required to dissolve the magnesium in the acid. Y. Empty and wash the flask. ReactantsTimeMagnesium, HCl (Cold)49 secondsMagnesium, HCl (Hot)30 secondsMagnesium (rolled), HCl40 secondsMagnesium (silvered), HCl52 seconds

Friday, March 6, 2020

Free Essays on Chasing Amy

Being one of my favorite movies and consequently watching it in class I chose the movie â€Å"Chasing Amy† written by Kevin Smith. The two main characters, Holden (Ben Affleck) and Alyssa (Joey Lauren Adams), get into a relationship transforming from friends to lovers. I chose this film because the cinematography in it is great. Cinematography- is the technique of making a movie including both the shooting and the development of a film. Cinematography has existed for as long as film has. It can be used in many different forms, artistic expression, political belief's and to types of culture. Chasing Amy follows this pattern of cinematography with showing the relationships of Holden and Alyssa change into a budding romance. This movie is the third installment of Smith's "New Jersey Trilogy". "The New Jersey Trilogy" consists of two other films as well. The critically acclaimed Clerks and the not so critically acclaimed, Mallrats. "Clerks had been over-praised, Mallrats has been over-bashed, third time's the charm," (View Askew.com) Smith said on his website. The movie stars Ben Affleck as Holden McNeel, an aspiring comic book artist who falls in love with another comic book artist, Alyssa Jones (Joey Lauren Adams). As the movie goes on, you find out that Alyssa is a lesbian and all the encounters she had with men which led her to make that decision. But in one key moment when Holden admits his feelings to Alyssa, the whole pace of the movie changes. Alyssa decides to take a chance and decides that Holden is the one for her as she throws her whole world upside down to be with him. But in the end, her radical and experimental life style is too much for Holden as he finds out a little to much of her past for his liking and throws it all away. But finding out the hard way of the error of his ways he finds out that it is too late and learns the lesson "it's not who you love, but how." (View Askew.com) Holden's inability to deal with aspects o... Free Essays on Chasing Amy Free Essays on Chasing Amy Being one of my favorite movies and consequently watching it in class I chose the movie â€Å"Chasing Amy† written by Kevin Smith. The two main characters, Holden (Ben Affleck) and Alyssa (Joey Lauren Adams), get into a relationship transforming from friends to lovers. I chose this film because the cinematography in it is great. Cinematography- is the technique of making a movie including both the shooting and the development of a film. Cinematography has existed for as long as film has. It can be used in many different forms, artistic expression, political belief's and to types of culture. Chasing Amy follows this pattern of cinematography with showing the relationships of Holden and Alyssa change into a budding romance. This movie is the third installment of Smith's "New Jersey Trilogy". "The New Jersey Trilogy" consists of two other films as well. The critically acclaimed Clerks and the not so critically acclaimed, Mallrats. "Clerks had been over-praised, Mallrats has been over-bashed, third time's the charm," (View Askew.com) Smith said on his website. The movie stars Ben Affleck as Holden McNeel, an aspiring comic book artist who falls in love with another comic book artist, Alyssa Jones (Joey Lauren Adams). As the movie goes on, you find out that Alyssa is a lesbian and all the encounters she had with men which led her to make that decision. But in one key moment when Holden admits his feelings to Alyssa, the whole pace of the movie changes. Alyssa decides to take a chance and decides that Holden is the one for her as she throws her whole world upside down to be with him. But in the end, her radical and experimental life style is too much for Holden as he finds out a little to much of her past for his liking and throws it all away. But finding out the hard way of the error of his ways he finds out that it is too late and learns the lesson "it's not who you love, but how." (View Askew.com) Holden's inability to deal with aspects o...