For the purposes of this experiment, the mass will be measured using a digital balance and the volume will be measured directly using a ruler and calculated using the volume formula {fig.1} for a cylinder.…
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.…
The Copper cylinder was placed onto the electric balance, measuring the mass and the volume was…
3. Add 50 ml of lead (II) nitrate 1M into the same 100 mL beaker…
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.…
We then pluged the determined value of [FeSCN2+ ] 1 to find the concentration of [Fe3+ ] .…
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.…
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…
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:…
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.…
Everyone goes through a struggle in life that involves perseverance but in some cases it involves a lot more. In Call Of The Wild Buck is taken away from his cozy southland home where he grew up safe and worryless, until he is brought to a place where no dog like him wants to be. He has to overcome challenges and learn how to adapt to survive. My mom had to do the same to survive she had to adapt to the new surroundings of being a single mom and having a baby to take care of. However they both learn to get through and things turn out there way.…
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.…
His job—human labeling, assigning colors to every individual: white, black, red and yellow. He knew full well the importance of such identification, for in the society where these humans are to be assigned, color coding, also known as racial classification, is critical because it constructs access to power, prestige, and economic gain. In this system, race is a social institution and arrangement, classifying labor, housing, and political representation along racial lines, thereby allowing one to produce and reproduce real-life differences (Glen 14). Unfortunately, his once perfect human labeling system malfunctioned when the black and white colors began to mix. This malfunction caused havoc within the assigned structured and segregated society.…