Part C 100 points

After nightfall tonight, observe the Moon and draw what you see in the first circle provided. Use the drawing tool’s Drawing feature (8 point or higher) for shading. Pay attention to the parts of the Moon that appear light and dark. If you can’t see the Moon, make a note of it. If the weather is poor or visibility is low, visit the Moon Page to see the current phase of the Moon. Record the date and time of your observations using the text box in the drawing tool.

Continue to observe the Moon in this way for the next 21 nights, and record the phases you see each night. After 21 nights, move on to task 2.

Which term refers to a property that depends only on the amount of a substance? ©@

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.

Since the gas in your graduated cylinder is a mixture of butane and water vapor, you must determine the partial pressure of the butane, pbutane, alone. to do this, consult a reference and record the partial pressure of the water vapor, pwater, at the temperature you recorded. use the following formula to compute the partial pressure of the butane. pbutane = atmosphere - pwater use the following combined gas law formula and compute the volume that the butane sample will occupy at stp. (hint: convert both temperatures to kelvin.) pbutane x voriginal = pstandard x vfinal troom tstandard use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. grams of butane you used “x” grams of butane ml of butane corrected to stp = 22,400 ml compute the theoretical molar mass of butane based on its formula and the atomic masses on the periodic table. compare your experimental results from #3 to the theoretical value of #4, computing a percent error of your findings using this formula: % error = measured value - accepted value x 100 accepted value use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. need asap