Scientific method experiment - Essay Example

Lecturer: The relative Weights of Gases Introduction Gases constitute a significant proportion of the world both quantitativelyand qualitatively. Just as possible as it is to establish the behavior of gases around us, it is also possible to establish the quantitative aspect of these gases. They have mass, pressure and volume just like other state of matters. It is a question of every scholar whether gases have definite mass. We often are left with question whether it is possible to establish the relative weights of gases.

Gases have relative weights and this experiments aims at approving this hypothesis ( Pandey et.al. 56) To establish this, the experimentalist used four samples of five gases namely; Oxygen, Hydrogen, Carbon Dioxide and Sulfur Hexafluoride. He used other tools such as four testing tubes, a top- loading balance and a syringe. The experimentalist measured a volume of 50ml of each of the gas samples. By using the syringe and the balance, the experimentalist calculated the weights of each of the 50ml-sample.

He observed that although the samples were of the same size, they weighed different. The vacuum weighed 0.00g Oxygen 0.54g, Hydrogen 0.11gm , Carbon Dioxide .088g and Sulfur Hexafluoride 0 .263g (Pandey et al. 56) The explanation behind this is that heavier gas samples have larger weight than the lighter ones. The gas sample cannot have more weight in this experiment as a result of change in the volume of the samples. Therefore, the change must be linked to the mass of the particles of the gas.

On plotting the molecular weights against the experimental weights, the experimentalist found out that it was a straight line. This is as a result of the correlation between the mass of the constant samples and the molecular mass. Therefore, this leads to the accepting the hypothesis that it is possible to determine the molecular mass of a sample of gas simply by measuring the constant quantity against an already determined linear relationship Pandey et al. 58).Works CitedPandey,Amrendra Kumar.

Disassociation Dynamics of Unstable Molecular Systems. Diss. MOHANLAL SUKHADIA UNIVERSITY .2014