The purpose of this experiment was to learn how to use a triple beam balance, graduated cylinder, and filter liquids.…
During this laboratory exercise we attempted to show that the force of gravity has the same effect on all falling bodies near the earth. We intended to show this by dropping several objects in normal atmospheric conditions, and in a vacuum chamber. Our tests showed that while everyday experience may indicate that not all objects fall toward the earth at the same rate, they are submitted to the same force of gravity.…
In the “Crush the Can” lab, we took an aluminum can, heated up some water in it, and turned it upside down into a tub of ice-cold water, crushing it with pressure. The movement of gas particles was a crucial component of this experiment. After the can was placed onto the hot plate, as the water heated up, the gas particles inside of the can started to move faster due to the relationship between temperature and the average kinetic energy, or average motion energy, of the gas particles. As the temperature increased, so did the speed of the particles inside of the can. Particles of water obtained sufficient energy to turn into water vapor, and the particles of water vapor displaced the original air inside of the can. As the number of elastic collisions…
Step 3: The remaining materials are aluminum soda cans and soda bottles. The next step involves the concentrated sugar water, which has a density of 1.5 grams per cubic centimeter. The aluminum soda cans and soda bottles are placed into the concentrated sugar water. The soda bottles should float because they are less dense than the concentrated sugar water. Soda bottles are 1.4 grams per cubic centimeter. The aluminum soda cans have a density of 2.7 grams per cubic centimeter which means they sink in the concentrated sugar water. The workers then skim out the soda bottles on the top of the concentrated sugar water and separate them from the aluminum soda cans in the bottom of the concentrated sugar water.…
3. Add 50 ml of lead (II) nitrate 1M into the same 100 mL beaker…
The Copper cylinder was placed onto the electric balance, measuring the mass and the volume was…
We then pluged the determined value of [FeSCN2+ ] 1 to find the concentration of [Fe3+ ] .…
+ Unit 9: Lecture 1 The Concept of Equilibrium and the Equilibrium Constant + What is equilibrium? A state of balance…
In chemistry, accuracy and precision are very important. Accuracy is the degree of conformity of a literature value and precision is a degree to which further calculated values show similar result. In this lab, the volume of the solution (diet or regular) is measured using the Pipette, Burette, and Graduated Cylinder respectively. The mass of the solution is then measured to calculate the density of the soda. Density is mass of a substance per unit volume2. How heavy the substance is according to its size or volume. The volume of liquid is measured in mL and mass in grams. Since, the density of water is 1g/cm3 ; therefore Diet Sprite's density should be equal to or a little bit more then water. The hypothesis was that regular Sprite will have higher density because it has a higher sugar concentration present which increases the mass per volume ratio of the solution. In this experiment only regular Sprite was used. The results are then compared to another group which calculated the density of Diet Sprite.…
In this lab, we brought emptied out aluminum cans.We filled these cans with a small amount of water. We began to boil the water to convert liquid to gas and exert gas particles. After the can was placed on the heating plate, we got a container of cold water. Soon later, the water inside the can was creating steam that was becoming more and more visible. Once we believed the water was hot enough, we got tongs to pick the can up. By picking up the can, the gas particles began to receive more space to move around away from each other, as the hot water was moving around. We held the can above the container of cold water, which had particles moving around each other. Once the can was placed in the water, the can was crushed. The can was crushed…
Chemical equilibrium is the point at which the concentrations of reactants and products do not change with time. It would appear as if the reaction has stopped, but in fact, the rates of the forward and reverse reactions are equal, causing the reactants and products to be created at the same rate. This can be expressed mathematically in the form of the equilibrium constant. The following is the general equation for a reversible chemical reaction:…
The meaning of static equilibrium can be explored by first examining the definition of equilibrium. Equilibrium means that an object is at rest or that the objects center of mass moves at constant velocity relative to the observer.…
It was also noticed that it took more drops of NH3 turn the solution to deep blue complex than the number of drops of HCl needed to turn the solution back to pale blue.…
We, human needs energy to live and for movements. Thus, we eat and combust food to release its heat energy in our bodies. In this experiment, we will determine how much heat energy released when we eat snack foods such as popcorn or potato chips. This lab includes three burning tests of different foods with different energy contents. Calorimetry is the science associated with determining the changes in energy of a system by measuring the heat exchanged with the surroundings(Calorimeters and Calorimetry). It requires us to create a soda can calorimeter which is a soda can with water inside in order to absorb heat energy and determine the temperature changes of water in soda can. These three different foods with different measurement of energy contents that participated in this lab are potato chips, popcorns, and raw pasta noodle. All three participants are all flammable. Because of the Law of Conservation of energy which states that energy cannot…
Purpose: The purpose of this Physics Lab is to investigate what factors determine the amount of flexion of the cantilever. Hence, the objective is to establish a relationship between the length of a cantilever, which may give some insight into the physics of cantilevers.…