Experiment: finding absolute zero experimentally Complete the following analysis and conclusion and submit below.

1. Calculate the Kelvin temperatures of the water and record your answers in the data table.
2. Find the change in the volume of air in the flask from your data and record in data table.
3. Use the equation V 1 / T 1 = V 2 / T 2 to calculate the expected volume of air when cooled in tap water.
4. How do the expected final volume and the actual final volume compare?
5. What is the significance of elevating or lowering the flask until the water level in the flask is even with the water level in the beaker or container?
6. Construct a graph of the data. Plot the volume of the gas at room temperature in tap water and in ice water on the y axis. Plot the Kelvin temperature on the x-axis. Print out graph paper for your plot.
7. Extend the plotted line downward until it crosses the temperature axis. This process of extending a graph beyond the experimental data is called extrapolation.
8. At which temperature is the line predicted to cross the x-axis?
9. At which temperature did the line actually cross the x-axis?
10. Account for any deviation between the predicted temperature line extrapolation and the actual line extrapolation.
11. Real World Chemistry - Explain why bottled gas containers are equipped with a relief valve?

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

1. an experiment in your science class lists the materials needed for the lab. it is your job, as a lab partner, to measure out 25 ml of distilled water and 2.5 grams of magnesium. what lab measuring tools would you choose to measure each substance and how would you use each tool to get the correct amounts? be sure to describe the process you would follow step-by-step. (5 points) 2.which of the following is an si base unit for measuring mass? (2 points) ampere gram meter pound 3.which of the following is an si base unit for time? (2 points) decades hours minutes seconds 4.which of the following tools should a scientist use to measure an object in milligrams? (2 points) graduated cylinder pan balance tape measure thermometer 4.which of the following tools should a scientist use to measure an object in milligrams? (2 points) graduated cylinder pan balance tape measure thermometer. 5.a pencil beside a metric ruler. the ruler is scaled from 1 centimeter to 10 centimeters, with markings for millimeters between each number. one end of the pencil is beside the 0 on the ruler, and the pencil point is beside the 5. which of the following measurements is accurate but not precise? (2 points) 5 mm 5 cm 50 mm 50 cm 6. which of the following prefixes represents the largest value? (2 points) giga hector kilo milli 7. which of the following types of graphs is best for plotting the percentages of a whole value in a data set? (2 points) bar graph circle graph histogram line graph