 # Lab Report: Moolar Volume Of A Gas At STP

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Formal Lab Report: Molar Volume of a Gas at STP Abstract:
The purpose of this experiment is to find out how to experimentally determine what the volume of a mole of H₂(g) is at STP by using gas laws. The hypothesis for the experiment is that if H₂(g) is produced at RT and STP, Avogadro’s law can be used to experimentally determine the amount of H₂(g) because equal gases at the same pressure and temperature have the same amount of particles. In order to find the molar volume, hydrogen gas was produced in a eudiometer tube by reacting magnesium and hydrogen chloride. The results showed that the molar volume of H₂(g) was 27.5L per mole of H₂(g). It was concluded that the molar volume of a gas can be experimentally determined by using gas
This problem is important because when new elements and compounds are discovered, scientists can figure out their characteristics They do this using KMT (Kinetic Molecular Theory). KMT states that in the substance as a gas behaves like hard, spherical objects that are always in constant motion with no attraction. The stated information is the staple of multiple gaseous theories. Some examples are frequency of the collisions, the distance between the particles in the container and the gas’s volume, and the temperature of said gas. The behavior of these particles affects their properties. This is because if the speed of the particles increases, that affects pressure and volume, and if the distance between the particles is low, that affects volume and …show more content…
It is known that the reaction was a single replacement reaction, so the products are magnesium chloride and hydrogen. Therefore, the balanced equation would is: Mg + 2HCl → MgCl2 + H2. This equation is used to discover the amount moles of hydrogen gas produced by looking at the mole ratios. The mole ratio between Mg and H2 in this equation is 1:1, because there is an invisible “1” coefficient in front of the Mg and H2. Therefore, for each mole of Mg used, the same amount of H2 will be produced. Avogadro’s Law states this information: (V1/N1 = V2/N2). In this case, N = the gas’s mole count. Finally, Dalton’s Law of Partial Pressures states that the total pressure exerted by something is equal to the sum of the partial pressures of the individual gases and other substances (Physical Science Department, 1), has an impact on the experimental calculations. Dalton’s Law was relevant in this experiment because it can be used to find the partial pressure exerted by the hydrogen by itself. It was hypothesized that if a gas is created through the reaction Mg + HCl → MgCl2 + H2 at a constant pressure and temperature, then the molar volume can be found out using gas laws because gases have direct and indirect relationships that can be used to find the unknown characteristic of said

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