ways to find the molar mass of a substance. One way‚ if the substance is a gas‚ is to use the Ideal Gas Equation to find molar mass. The standard equation reads PV=nRT where “n” is the number of moles present‚ “P” is the pressure (which is obtained by reading the barometric pressure of the room with the class barometer)‚ “V” is the volume of the gas‚ “R” is the universal constant‚ and “T” is the temperature of the gas. The experiment’s objective is to calculate the experimental value of molar mass
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collecting lab data‚ determine the hydrogen gas’s molar volume at STP through calculation. Materials: -LabQuest data collector - 3.0 M of HCl solution - Ribbon of Mg metal - Gas pressure sensor - Temperature probe - 600 mL beaker - 125 mL Erlenmeyer flask - 20 mL gas syringe - Rubber stopper with two-way valve
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)k-1k Where‚ P1 and T1 is initial absolute Temperature and absolute Pressure P2 and T2 is Temperature and Pressure after the expansion. Materials and Apparatus: Perfect gas expansion unit Procedure 1. General start up procedure is performed as stated in appendix A. All valve are fully closed 2. The hose is connected from compressive pump to pressurized chamber 3. The compressive pump is switched on and the pressure inside chamber is allowed to increase up to 160kPa.The pump is switched
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(rounded to SF= 291 K) 2. 1 atm 1 atm 10 mm 10 mm 2.54 cm 2.54 cm According to the digital barometer our teacher provided‚ the barometric pressure in the lab is 29.77 in Hg‚ which will need to be converted to atmospheric pressure. 760 mm Hg 760 mm Hg 1 cm 1 cm 1 in 1 in 29.77 in Hg x x x = 0.9949 atm Barometric pressure: 756.2 mm Hg or 0.9949 atm 3. Volume of gas collected: 100.0 mL 4. Initial mass of butane lighter: 21.88 g 5. Final mass of butane lighter:
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surface and up to an altitude of about 80 km. 2. The five main components of the atmosphere are nitrogen ‚ oxygen‚ water vapor‚ ozone‚ and the particulates. 3. The cause of atmospheric pressure is exerted equally in all directions up‚ down‚ and sideways. 4. The two types of barometers measure atmospheric pressure ‚ atm ‚ millimeters and or inches of mercury and the millibars mb. Therefore‚ the two barometers are the mercurial and the aneroid. 5. The layer of the atmosphere in which weather occurs
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Marcet Boiler 1. Abstract This experiment was carried out to determine the relationship between the pressure andthe temperature of saturated steam in equilibrium. Besides that this experiment was alsodone to demonstrate the vapor pressure curve. The market Boiler was used for thisexperiment. When the pressure increases‚ the temperature also increases. Therefore‚ therelationship of pressure and temperature is directly proportional. The derived formulaeand the data were used to calculate the slope
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Peer pressure Have you ever been forced to do anything ? Have u ever felt that you are in a tight corner because of someone’s comment? we all could face situations like that; we all could have faced peer pressure. what is peer pressure? " Peer pressure is when someone or a group of people influences or encourages others to do things they do not want to do or tries to change people’s attitude‚ or behavior towards something
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The Dynamic VLANs switch automatically assigns the port to a VLAN. Because there are changes happening quickly and employees being added and moved to new locations this membership type would work best. It can be assumed that with the growth of the company that there will be more employees being moved and location changes continuing. Switches A layer 2 switch will be used on the VLAN. With a layer 2 switch multiple layer 3 networks can be created from the same layer 2 switch. This layer 3 is the
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under variety of different conditions‚ such as‚ different amount of drops of enzymes and different temperature of water. The class measured the pressure in the test tube during the reaction of the substance with‚ 1.5 ml of H2O2‚ 1.5ml of H2O and different amounts of enzyme drops‚ to determine how much oxygen gas is produced during the reaction since the pressure of the test tube will get higher as more oxygen gas is accumulated during the reaction. 2) If more drops of the enzyme are added to the
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Peer Pressure has been very controversial topic over the years. Today‚ the media has transformed the issue into a topic that is discussed every day. Many people are sometimes misinformed about topics because the media twist facts enough to make anyone believe what they tell them. The media has gotten the public to believe that peer pressure is all bad and only certain people deal with it‚ but peer pressure can be used positively or negatively depending on the situation. Peer pressure is when a person
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