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Please help me complete the table and question #1 on page 100. Data and info will be given below. Thank you! Name_ Date Laboratory Instructor
Please help me complete the table and question #1 on page 100. Data and info will be given below. Thank you!
Name_ Date Laboratory Instructor Lab Day & Time_ Record your data in the table below you will need to convert Pascals to atm for the pressure obtained by using the weights and area: Measurements (@) Area Plunger Weight [N) Volume (L) Pressure (atm) n (moles] [m* 2] V = P = M= 1 3. 4. 5. 7. B 10. 1. The number of moles is not known in this experiment and cannot be used to evaluate the accuracy of the protocol (% error calculation). It can, however, illustrate the precision with the standard deviation. Discuss potential sources of error. 100Procedure: Materials: 22. 1 candle 23. 1 syringe (no needle) 24. clamp 25. ring stand 26. caliper (optional) 27. weights 28. beaker 50-100mL 29. water Set Up: Light a candle. Remove the plunger from a syringe and fill with wax to the 0.4ml line. This will mean that the volume reading will be 0.4ml off. Measure the diameter of the opening in the syringe (the plunger side). Some syringes may have been already prepared. Securely clamp the syringe to the ring stand. Place the lower portion of the syringe into a water beaker. (See figure). Insert the plunger into the syringe. Record the initial Pressure by going to wunderground.com and finding the barometric pressure from a weather station near the school. Record the initial volume from the syringe (subtracting out the volume of the wax). Place masses on top of the syringe to supply a pressure. The number on the masses is NOT the mass, but rather the weight in Nm. P = F/A where P is pressure, in Pascals, F is force, in Newtons, and A is area in ma. So, P = F/(mr?) where F is the 'mass' on the weights and area is the circular area of the syringe opening. Experiment by changing the pressure. Record volume and pressure after every change. Do this ten times and record data in the table available in the report section. If not already done, convert each value into appropriate units: liters, atmospheres, Kelvin. Solve for n for each trial (should stay constant if no air escapes). Calculate the average and standard deviations. Make a PV graph using your data. You will also need Equation (6)., for the standard deviation. (6) 0=14 n-1 98Experiment 8: Kinematics Finally, the world of science arrived at the creation of the Ideal ("Noble") Gas Law, Equation (5). (5) PV = nRT Learning Objectives: As you work through this assignment you will: where (P ) is pressure, (V) is volume, (n) is the number of moles, (T) is the temperature in Kelvin, and Explore the properties of noble gases (ideal gases). (R) is the combined proportionality constant most commonly 8.314 J/mol.K or 0.08206 L-atm/mol-K. . Understand intermolecular interactions between gas particles. This relation is an approximation as it does not take into account that each atom takes up a small Explore the relation between pressure, temperature and volume as they relate to portion of volume and that intermolecular interactions between the molecules will influence heat exchange and pressure interactions, hence, an ideal gas. As a result, this relationship is best observed gases. under high-temperature (to limit the effects of intermolecular interactions), low pressure (keeping the Explore different gas laws to describe the behaviors of gases under different atoms away from each other), and noble gasses (which do not readily participate in chemical conditions. reactions). Regardless of these limitations, we will be able to observe these relationships with enough precision to model the relationships. See Figure 1. for a depiction of the internal kinetic energy for an Introduction: amount of ideal gas. Elements in the gas phase have several important properties that influence their behaviors: pressure, volume, and temperature. Previous work resulted in the creation of Boyle's Law (1662). Figure 1. Boyle's Law shows that pressure and volume are inversely proportional to Equation (1). (1) (P1V1 = P2V2) Charles' Law (1787) shows that volume and temperature are directly proportional. See Equation (2). (2) (V1/T1 = Vz/T2) State variables Equation (3). Gay-Lussac's Law (1808) shows that pressure and temperature are directly proportional. V volume (3) (P1/T1 = P2/T2) P absolute pressure T absolute temperature Avogadro's Law (1811), Equation (4). shows that volume and the number of moles are directly proportional. Given a quantity of Neon gas at a pressure of 7atm at 300K, and contained in a tank of 2.6L fins the (4) (V11 = V2z) number of moles of this gas. Applying the Ideal Gas Law: PV = nRT= n= (7atm)(2.61) -=0.0073moles RT (8.314J/ mol -K)(300K) 96 97Lab 8 Data Note: Atmospheric pressure is 101,693Pa and diameter of the syringe plunge is 0.01416m. Atmospheric pressure adds onto the pressure due to the masses. In addition, mass is not a force. You need the force divided by area to figure out the pressure due to masses. Mass Volume Okg 12ml 0.2kg 11.5mL 0.4kg 10.5mL 0.6kg 9.8mL 0.8kg 8.8mL 1.0kg 8.0mLStep by Step Solution
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