Friday, June 14, 2019
Experiment 2 Lab Report Example | Topics and Well Written Essays - 1000 words
Experiment 2 - Lab Report ExampleEquation for Archimedes buoyancy force is Fb = g(mobject mair), where Fb = buoyancy force, g = gravitational acceleration, and m = mass. On the other hand, Avogadros laws allows for the determination of a gas volume at a given density. Equation for Avogadros law is molar mass/densitySTP = 22.415L/mole. By determining the volume and mass of any gas, it becomes easy to deduce a gas molar mass (Peck 68). This experimentation involved determining the molar volume of hydrogen and helium gases that are less dense than air.Prior to commencement of the experiment, appropriate safety requirements were performed. First, use of safety goggles and lab coats was prioritized. Secondly, water spilled on the floor was wiped in order to prevent slippage of students during the experiment. Finally, any chance of hydrogen ignition was considered, especially adherence to the use of fumed hood and prevention of silent electricity.After the safety considerations, proced ural steps of the experiment were performed. The volume of the pitcher was measured using a graduated cylinder. Simultaneously, the balloon was prepared by inflating it with both hydrogen or helium and subsequently weighed. Either excess balloon was cut off or additional pieces of strings added to the balloon setup until the balloon could float in air. Next, the pitcher setup was performed by immersion into water and the balloon gas transferred into the immersed pitcher. Finally, the gas volume was measured together with other applicable parameters like air pressure and environmental temperature. As a means of facilitating consistency and precision, three trials were performed for both hydrogen and helium. Data and results from each step of the experiment were recorded in the sheet below.Based on the data collected during the experiment, the calculated average molar mass of hydrogen is 2.107 g/mol plot of land that of helium is 1.14 g/mol. The
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