Hydrogen Gas Lab

An experiment was carried out to predict the limiting reactant in a chemical reaction between Magnesium and Hydrochloric acid, using the mole concept.

Throughout the experiment, countless calculations were made to calculate the enthalpy of formation for magnesium oxide. This was accomplished, first by finding the temperature change through use of a temperature probe within a chemical reaction with magnesium and hydrochloric acid, along with a chemical reaction containing magnesium oxide and hydrochloric acid. For the reaction that consisted of magnesium and hydrochloric acid, the temperature change was much more rapid compared to the reaction between magnesium oxide and hydrochloric acid. The reaction was gray in color, steamed, bubbled, and had a strange smell (likely consisting of the released hydrogen gas). In comparison, the reaction between magnesium oxide and hydrochloric acid was lackluster, producing no bubbles and staying relatively clear in color. Although most magnesium and magnesium oxide went from the weigh boat into the reaction, not all did, potentially affecting our final results.

Proponents of a world-scale hydrogen economy argue that hydrogen can be an environmentally cleaner source of energy to end-users, particularly in transportation applications, without the release of pollutants like particulate matter and carbon dioxide. However hydrogen continues to have technical obstacles associated with it, including storage issues, due to the fact that hydrogen has a high energy density by weight, but has a low energy density by volume when not highly compressed or liquefied.

Stoichiometry involves converting chemical formulas and equations that represent individual atoms, molecules, and formula units to the laboratory scale that uses milligrams, grams, and kilograms, of these substances (1). A limiting reactant is the reactant in a reaction that has been completely consumed. It is referred to as a limiting reactant because it limits the degree to which the experiment can happen. In a chemical reaction, it is common to use an excess of one reagent to ensure that the limiting reactant is transmitted out to the end. In order to figure out the yield of a reaction one must find out the limiting reactant. The limiting reactant is the one that will dictate or limit the maximum amount of product that can be produced within the reaction this is also known as the theoretical yield. In order to determine whether or not the experiment was successful one must obtain the percent yield. This can be found by using a ratio between the experimental yield divided by the theoretical yield, this number is then

By varying the concentration of hydrochloric acid and keeping the surface area of magnesium and temperature constant, the value of the rate order b with respect to hydrogen ion concentration can be determined. However, by varying the surface area of magnesium and keeping both temperature and concentration of hydrochloric acid constant, the value of the rate order a with respect to surface area of magnesium can be determined1.

The main objective of this lab experiment is to understand the connection between quantities of reactants and the amount of products produced by a chemical reaction. A stoichiometric ratio can be defined as the mole ratio of the reactants, as determined by the coefficients in the balanced chemical equation. There are several ways to do this, but each starts with a balanced chemical equation so that the stoichiometry of the reaction is known. In this lab, students used two methods, the job’s method and the mole-ratio method, to determine the mole-ratio number. Also, it is important to be able to calculate which reactant is the limiting reactant because the limiting reactant will determine the amount of product that can be produced during a reaction.

The report providing an analysis and evaluation of the exercise upon the heart for a lady in her mid-thirties who has participated within a spinning class

In the Type of Gas Lab, my partner and I put different materials into a beaker and tilted the beaker slightly to fit a lit wood splint into the beaker to see the result. The different results would show us which gas was which. I predicted that the first gas would be oxygen, the second would be carbon dioxide, and the third gas would be hydrogen. I was correct about the oxygen but was incorrect with the carbon dioxide and the hydrogen, for I had them switched. During the oxygen test I noticed that the mix inside the beaker was bubbling and slightly warm. The magnesium chips inside of the beaker with hydrogen gas bubbles slightly and there was no major temperature change. And the carbon dioxide test beaker didn’t really foam or bubble, it just

Volatile liquids are prevalently used in the perfume industry. Because of their evaporative nature, feasibility is a top concern from both a shipping and manufacturing standpoint. Therefore, it is necessary to ship the most viable chemicals under specific conditions . This experiment tested the relationship between vapor pressure and molar mass and the relationship between vapor pressure and temperature using four alcohols (amyl alcohol, ethanol, methanol, and 2-propanol) to assess whether n-hexanol or an alternative alcohol should be used and how the alcohol should be transported. From the graph trend lines, a negative slope showed that molar mass was inversely proportional to vapor pressure, and a positive slope showed that temperature was directly proportional to vapor pressure. It was concluded that n-hexanol transported at colder temperatures would most effectively minimize the alcohol's volatility.

Throughout the unit in Chemical Reactions, a big message was the efficiency that different reactions would produce. Specifically, we looked at the relationship between complete and incomplete combustion as well as hydrogen fuel. In the next three paragraphs you are about to read I will be explaining why hydrogen is the better choice for fueling our machines in the future, the chemistry behind the hydrogen fuel, and finally the cons of hydrogen fuel.

The article "When it comes to putting the squeeze on hydrogen, diamonds make the point," this describes the combination of hydrogen and pressure to produce solid metallic hydrogen, with some research, like how hydrogen is the basic atom, used for a model for scientists to refer to. It is abundant in the universe. Physicist Philip

Stoichiometry is known as the proportional relationship between substances during a chemical reaction. Stoichiometry helps to determinate how much of a product will be needed, or maybe how much you started with. The limiting reactant is the substance that is totally used when the chemical reaction is complete. In a chemical experiment when two substances are reacting, one reactant will be consumed first then the other one and it will be call the Limiting Reactant. The excess reactant is the substance that is not used up completely in a reaction. The theoretical yield of a reaction is the amount of product that would be produced in a complete reaction, whereas the amount actually produced of a product is the actual yield. The Percent Yield gives

With gas prices escalating and fossil fuels becoming limited, scientists have been researching an alternative fuel source that will be more abundant and cost efficient. Issues with our current fuel source include the pollution that is emitted in our air and water sources and the fact that fossil fuels are becoming scarce. One alternative to gasoline is the use of hydrogen as a fuel source. With hydrogen as a fuel source pollution will be in decline, it has become increasingly more abundant than fossil fuels through extracting hydrogen from various sources, and is domestically produced.

The storage of hydrogen is another challenging issue in this research and many alternates for it has been discovered and

Siapkan tabung reaksi diisi dengan hati ayam berbentuk kubus kira-kira 1cm x 1cm x 1cm.