For Part B, the LabQuest was set to collect data every 15 seconds for 3 minutes. To begin, 50 mL of the hydrochloric
For Part B, the LabQuest was set to collect data every 15 seconds for 3 minutes. To begin, 50 mL of the hydrochloric
The solution of NaOH, water and HCl in the 100-mL was poured into the proper waste container. The solution of 40-mL of water and 5-mL of HCl was prepared again in the same 100-mL beaker and placed under the…
A 125 mL flask was obtained. The square of aluminum was fashioned over the flask by laying the foil over the mouth and folding the sides down. A pin was then obtained and was used to poke a tiny hole in the center of the aluminum cap.…
12. For the reaction of magnesium oxide and hydrochloric acid, tare the scale with the Styrofoam cup on it.…
9) Put 4mL of stock solution and 1mL of water in a test tube to make the second solution.…
2. To determine the densities of water, an unknown liquid, a rubber stopper, and an unknown rectangular solid.…
When holding test tube inverted over heptane flame, condensation formed against top walls of the test tube. When the burning splint was added the walls of the test tube became less foggy from the condensation formed from the heptane flame.…
.2400 grams of the unknown compound. This is done in duplicate and purple-tinted precipitates are placed in Gooch crucibles. The precipitates are suction dried using ethyl alcohol then acetone to…
Procedure: In this experiment I used a 96-well plate to hold each of the chemical reactions that occurred during this lab. Using a pipet, I added two drops of one chemical with two drops of another chemical and observed the effects of each reaction.…
In the book the author Herb Hanes reveals information on flawed executions. In the author's case flawed executions are “executions in which public sensibilities are offended by a breakdown in routine procedures of convicting murders and putting them to death”. The authors research specifies that botched executions is too small to capture the delicacy of the executions. The paper deliberates four ways in which flawed executions are occured. “1.executions may be technically botched, 2.convicts may not play their assigned roles, 3.the prescribed solemnity of the death chamber may be compromised and irregularities in conviction and 4.sentencing may come to light”.In the paper the author uses evidence and answers specific questions in proving that…
As I continued with my experiment I came across a few observations that are important to bring to attention. As I added 10 mg of magnesium to the beaker of HCl, a shaded area appeared at the bottom of the beaker. Directly after, bubbles formed in the same beaker thus indicating the Mg was being consumed.…
Experiment: For this experiment I determined the reaction rate, average time, moles of each solution and discovered…
-The Kelvin and Celsius scale are the same both are one hundred of between freezing point of water and boiling point at standard atmospheric pressure.…
Procedure: Safety goggles, gloves, and lab apron were put on. (Only the ones who were doing the experiment) 50mL of water was placed in the 100mL beaker and heated until boiled. And the boiled water will be used as the water bath. The lab marker was used to make 3 marks (1 cm apart). 1.0 M copper (II) nitrate was added to the first mark on the test tube. 1.0 M sodium hydroxide (NaOH) was added up to the second mark on the test tube. The solutions were mixed with the stirring rod. The test tube was put into the water bath. The burner was turned off and the test tube was cooled. 1.0 M hydrochloric acid (HCl) was added to the third mark on the test tube and was mixed. The 12 cm piece of aluminum was placed in the test tube. The wire was removed from the test tube. Lab station and equipment were cleaned.…
In the short story “A Story of an Hour”, Mallard is portrayed of being alone due to the “death” of her husband. That “alone” feeling starts to clear away as she notices that she was confined and followed everything that her husband told her to do. Even though Mallard was confined in a room, she starts to see how her husband was acting like a dictator and was moving Mallard as a puppet. At first, when she thought how freedom was coming towards, she dreaded it. But, as freedom arrives and enters her mind, it fills Mallard with an overpowering joy and comfort that she’s not controlled. Yet, she still experiences this mental and emotional freedom still in a small confined room all by herself when staring at the window. “She said it over and over…
In the Alka-Seltzer Rocket lab one was to experimentally determine how much (grams) Alka-Seltzer and water in mL, is needed to launch the rocket the highest/longest distance in cm. Also to experimentally determine the % NaHCO3 in the tablet using the information from the highest/longest distance. Calculate the error and % error of NaHCO3 in an Alka-Seltzer tablet and to determine the limiting reagent for the highest/longest distance traveled. Alka-Seltzer tablets were first obtained. Vinegar, a 250-mL beaker, and a 50-mL (or 10-mL) graduated cylinder was given from the instructor. After the experiment, a graph of percent by mass of the reacted NaHCO3 in a tablet versus the volume of vinegar used was constructed.…