Lab_Report

Lab Report LAB: DETERMINING THE VALUE OF THE UNIVERSAL GAS CONSTANT, R. Objective: The objectives of this lab are to measure the volume, pressure and temperature of a sample of wet butane gas, C4H10 grams. Another objective is the determine the pressure of the dry butane gas by correcting for the partial pressure of water, also to calculate the experimental value of the universal gas constant, R, and compare it to the accepted value. Materials: „X Centigram balance „X Thermometer „X Pneumatic trough „X Barometer „X 100mL graduated cylinder „X Reagent: Butane, C4H10 (in lighter) Procedure: 1. Put on safety glasses and keep on until you complete the lab. 2. Fill the pneumatic through with tap water. Record the water temperature. 3. Fill a 100 mL graduated cylinder to the top with tap water. 4. Be sure that there are NO air bubbles in your cylinder. 5. Obtain butane lighter from your instructor ¡VNO NOT LIGHT AT ANY TIME DURING THE LAB. 6. Mass the lighter to the nearest 0.01 gram, Record you data. 7. As one partner holds the graduated cylinder (inverted), the other lab partner should hold the butane lighter under the water just below the opening of the graduated cylinder is equal the level outside when finished. 8. Open the trigger of the lighter and displace between 50 and 65 mL of water from the graduated cylinder. Be sure kpa, butane, water, value, pressure, cylinder, lighter, gas, mass, graduated, atm, error, dry, lab, data, 100, partial, mm, ml, grams, accepted, a trial, volume, vapor, temperature, tap, record, outside, one, level