Particles Lab

The graph I created from the tested data differs from my predicted graph. They both are positive as the time increases as the position increases, but in my predicted graph, I did not count for acceleration. The reason the graph is not a

8. Create a graph: Select the GRAPH tab. Set the mass slider to 0 kg, and click Record to plot a point on the graph. Plot a point for each possible mass to create a graph showing the relationship between pressure and volume.

A sample of gas is trapped in a sealed container, which has a movable lid. Moving the lid up or down will change the volume inside the container. You will use an attached manometer to measure the pressure inside the container.

The purpose of this lab was to determine the effect of temperature on the volume of gas when the pressure is consistent and to verify Charles’ Law. The data from the experiment reveals that as temperature increases, so does volume. This also indicates that as temperature decreases, the volume decreases as well.

The pressure of a gas sample increases for a decrease in volume and decreases for an increase in volume.

Using a measuring tape on the wall each member of the lab group separately stood with either side against the tape and extended the arm beside the wall as high as possible. This height was recorded in centimeters. Next each lab member separately applied chalk to their fingertips, crouched down beside the tape on the wall, and jumped as high as they could while hitting the measuring tape at their highest point. This measurement was again recorded in centimeters. Then the height the lab member’s arm extended while standing was subtracted from the height when they jumped. This number denoted the vertical height jumped. For the jump height measurements a scatter plot was constructed. In order to do this, the data was again entered into excel, highlighted, insert chart and the first scatter plot choice was chosen. It was then that it was necessary to edit our axes and other parts of the graph. The x-axis was right-clicked and format axis was selected and fixed was selected and 20.0 was entered into the blank. Following this, a trend line was added to the graph by right clicking on a data point. A drop down popped up, and from there add trend line was selected from the choices.

In the fourth stage of this experiment, the density of a gas was determined. A 250ml flask was weighed with an empty rubber balloon and the mass was recorded.

AP Chemistry Mrs. Johnson Chemistry Butane and Inquiry Lab Submitted By Germaine Washington September 30, 2016 Abstract The purpose of these experiments was to determine the validity of the Ideal Gas Law. In the first experiment we used a Butane lighter to conduct a collection of C4H10 gas over water, with which we would measure the volume of the butane produced. It was found the 0.16 g of Butane gas at 299°K and 1.005 atm held a volume of 100mL. The results supported the Ideal Gas Law, PV = nRT.

Initially, 8 pennies were added to the cup, followed by the addition of 7 pennies and 1 dime, then 4 pennies and 4 dimes, and finally 8 more pennies. There were therefore a total of 27 pennies and 5 dimes added to the cup. Table 2 demonstrates that the force (N) for dimes and pennies went up by almost 0.20 N at each interval. Therefore, the force (N) in Table 2 did not deviate much from the force (N) seen in Table 1 where all pennies were used. The reason little variation in force was seen in Table 2 was due to mostly pennies being added to the cup. Due to so many pennies being added, the dimes had little impact on the overall force (N). If roughly an equal ratio of pennies to dimes had been added to the cup, a more distinct variation between the slope’s in Figure 1 and Figure 2 would have been seen. However, the slope or the average weight of the coins, as represented in Figure 2, was 0.0249 N. The slope can be calculated by dividing the change in the force by the change in the # of pennies and dimes. The x-values represent the number of pennies and dimes, while the y-values represent force (N). The y-intercept value is equal to 0, therefore, the linear equation is y=0.0249x+0. After plotting the line on a manual curve fit, as can be seen in Figure 2, the R2 value was 0.99884. This R2 value is very close to 1, meaning that the match of the linear model to the data fits. After running a

January 2008 the Green Packers played the New York Giants in fight for the NFC Championships. In this game the temperatures were recorded to have fallen to -26 degrees. Like the first two, the temperature was recorded to begin at 70 degrees and continued all the way to -26 degrees and the pressure was found for every temperature. Again, the trend was seen. As the temperature decreased by 10 degrees, the psi dropped by 1.25. At the final temperature the ball would have seen to have a negative psi.

The purpose of this experiment is to investigate some physical and chemical properties of gases and to use these properties to identify these gases when they are encountered.

The hotter the air became, the more inflated the balloon was. The colder it became the smaller the balloon was. 4) Describe what happens to the marshmallows when the piston is pulled out and pushed in again. What is the gas particle basis for your observations? When the piston was pulled out the marshmallows grew in size, and when it was pushed in the marshmallows shrunk and wrinkled.

The results of the graph wasn’t so shocking, but at first I was confused as to how we were supposed to draw the line, but then I understood. I put the mass on the X-axis and the volume on the Y-axis, as I was supposed to, and I went up by ones. The points weren’t far from the best fit line, and there was actually a point that fell on the best fit line. I made my graph neat because I wanted to be able to see the points, numbers, and the line that was plotted on my graph. I named my graph The Mass and Volume of my Graph because my graph consisted of the mass and volumes of the

Once the data was collected, we calculated the Vapor Pressure at room temperature using the formula mentioned in my

    The scatter plot will allow us to compare how the variables arrange themselves on the graph and how the linear, quadratic, and power functions correspond to the data on the graph.