Solid Magnesium Lab Report

Improved Essays
In this experiment, solid magnesium is used with hydrochloric acid to produce magnesium (II) chloride and hydrogen gas. The gas is measured with an inverted graduated cylinder. Solid magnesium was under the cylinder while HCI are poured from a funnel into the cylinder to perform the reaction where hydrogen gas is trap inside the graduated cylinder. The average molar volume of hydrogen gas at STP is 20.839 L/mole for the experiment, which is about 6.97% off from the true value. One potential error could be from the funnel. Since HCL is pour in from the funnel, H2 gas could possibly escape from the funnel. A suggestion would be to close the holes of the funnel after all the HCL is poured in, so gas would not be able to escape out. Another

Related Documents

  • Improved Essays

    The purpose of this lab was to determine the formula of copper chloride hydrate by dehydration through heating, rehydration through adding water back in, the reaction of aluminum with the copper chloride hydrate to produce solid copper, and the weight of this copper. To accomplish this, a petri dish was weighed and 1.01 g of copper chloride hydrate was added to the dish. The solid salt crystals were broken up to make sure that all of the hydrate would be heated the same. Next, the petri dish and hydrate were heated upon a hot plate for roughly 15 minutes, until all the salt crystals were brown instead of blue. This indicated that all of the water had been burned out of the hydrate, leaving dehydrated copper chloride.…

    • 494 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Unit 4 Test Lab Report

    • 581 Words
    • 3 Pages

    Results In the lab, 478 trials were conducted using a total of 956 crickets. The 478 pairs resulted in 264 wins for the resident cricket and 214 wins for the intruding crickets. These results produced a chi squared value of 5.230. The p-value calculated from this lab was .022.…

    • 581 Words
    • 3 Pages
    Improved Essays
  • Decent Essays

    I am in receipt of an MG-2 form filed by Dr. Czajka on 08/23/17. The doctor is requesting back therapy, two (2) to three (3) times a week for six (6) to eight (8) weeks. The Special Funds approved the MG-2 on 08/24/17. It is my understanding the doctor is going to ask for a years worth of physical therapy as he has done in the past. This MG-2 is good for a eight (8) weeks and he certainly can renew it after you have done the eight (8) weeks of physical therapy.…

    • 119 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    Unknown Lab Report

    • 1511 Words
    • 6 Pages

    The focus of this lab was to identify an unknown organism based on its characteristics and the results from each of the tests. There will be various of test to choose from in order to identify the unknown organism, which will eliminate numerous possibilities and narrow it down to one. All the fundamental skills that we have learned and practiced in the lab will be used to perform on our unknown such as aseptic technique, microscopic examination, the use of differential media, and determining if it’s positive or negative. Performing aseptic techniques is the most crucial step that requires the utilizing of transferring, inoculating, and storing bacterial cultures and media. Aseptic technique is defined as procedures that prevent contamination…

    • 1511 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    Radioactivity Lab Report

    • 1761 Words
    • 8 Pages

    Radioactivity past paper assignment Question 1: In the fridge, from a previous experiment, there is a 50 mM [U-14C] glucose solution. A 20 uL aliquot was counted and gave 200 000 dpm. What is the specific activity of this preparation? 20 uL = 200 000 dpm (divide both sides by 20) 1 uL = 10 000 dpm Glucose = 50 mM = 50 mmol / uL =…

    • 1761 Words
    • 8 Pages
    Improved Essays
  • Decent Essays

    The purpose of this lab was to determine the standard molar volume of hydrogen gas. In order to measure the standard molar volume, we needed the volume of H2, which we measured at 0.035 L inside the burette. Also, we needed the number of moles of hydrogen; we calculated this by doing the mole to mole ratio of Magnesium and Hydrogen while using the balanced equation. The number of moles turned out to 0.00144. Then, dividing the volume of H2 by the number of moles of H2 , I calculated the standard molar volume of H2 to be 22.2L. First plausible source of error can be that we did not use exactly 10ml of HCL, instead, we used 9 ml.…

    • 173 Words
    • 1 Pages
    Decent Essays
  • Decent Essays

    Copper Sulfate Lab Report

    • 164 Words
    • 1 Pages

    The lab's goal was to purify a heterogeneous mixture of solid sand, Copper sulfate, & Potassium nitrate, wanting a resulting outcome of pure Potassium nitrate. The experiment required the separations of all components at different steps along the way. The hypothesis was to be able to have pure Potassium nitrate by following the procedure: separation of sand by its lack of solubility and Copper sulfate with its different temperature change to Potassium nitrate. This procedure, however, would not lead to a 100% pure Potassium nitrate, as the final product of Potassium nitrate still retained .05% Copper sulfate. Concluding that this error possibly came from the experiments lack of time.…

    • 164 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    Sample Lab Report

    • 698 Words
    • 3 Pages

    From the table, we can see there were no colonies growing on the tryptophan dropout and the isoleucine drop out, on all the medium plates except for the 1X dilution Tobacco medium plate. For the positive control, increasing concentrations of ethyl methane sulfonate (EMS) resulted in a decreasing number of colonies growing on the medium plates. This means that EMS is mutating the yeast in such a way that they would not be able to grow on the YPD. For each concentrations of the positive control, there are 3 different colours of the colonies with white being the most common. White means that there were no mutations to the yeast, which could explain why there are so many colonies as they are able to grow on the YPD plate.…

    • 698 Words
    • 3 Pages
    Improved Essays
  • Decent Essays

    3 N. 2: Magnesium Nitride

    • 238 Words
    • 1 Pages

    〖Mg〗_3 N_2 – Magnesium Nitride This compound is an ionic compound, meaning that there contains a metal and a nonmetal. In this instance, the metal is magnesium and the nonmetal is nitrogen. Therefore, in the flowchart, you would look under ionic compounds.…

    • 238 Words
    • 1 Pages
    Decent Essays
  • Decent Essays

    Erlenmeyer Error

    • 111 Words
    • 1 Pages

    A possible error can happen when you put the rubber stopper back onto the Erlenmeyer flask. If you do not secure the stopper onto the flask there may be room for the Hydrogen gas to escape which would significantly change the results of the experiment. With altered results the final conclusion of the experiment would be inaccurate which would render the experiment obsolete. Another possible source of error is if you allow oxygen to go to the top of the gas collector and forget to record the volume that it takes up.…

    • 111 Words
    • 1 Pages
    Decent Essays
  • Decent Essays

    7. If during the experiment an air bubble leaked into the eudiometer tube while it was being inverted in the water bath than the measured volume of hydrogen gas would be off. Ultimately the measured volume of hydrogen gas would be too high because the gas being recorded would not only include hydrogen gas, but the air that leaked into the eudiometer as well. Because the volume of hydrogen gas would be too high the calculated molar volume of hydrogen would also be too high. This is because to find the calculated molar volume of hydrogen you divide the recorded volume of hydrogen gas by the theoretical number of moles of hydrogen.…

    • 300 Words
    • 2 Pages
    Decent Essays
  • Improved Essays

    Molecules Project 1: Chemiluminescence Luuk Adema & Ewout van der Veer S2794640 & S2680254 luukadema@hotmail.com & ewoutvanderveer@msn.com 31-10-14 F. Mecozzi, E. Hagting & M. van Zuylen Abstract Luminol was synthesized and the light intensity of its luminescence was tested. The yield of the synthesis was 55%. Measurements of the intensity of luminescence were done under standard and optimal conditions resulting in peak intensities of ±0.02 lux (standard) and ±0.03 lux (optimal). It has been shown that an increase in pH results in an increase in intensity with a maximum of pH=11.33.…

    • 1111 Words
    • 5 Pages
    Improved Essays
  • Great Essays

    When comparing the same substance under different conditions, the combined gas law can be mathematically written as (P"1" V"1" )/T"1" = (P"2" V"2" )/T"2" . Since the conditions of the experiment were not at standard temperature and pressure, the combined gas law is required in order to calculate the corresponding volume of hydrogen gas at STP. Single displacement reactions were also…

    • 1741 Words
    • 7 Pages
    Great Essays
  • Improved Essays

    Magnesium Oxide Lab Report

    • 1193 Words
    • 5 Pages

    However, our lab did not provide us with the hypothesized results, as no reaction occurred when the magnesium was burned, potentially due to an error in the process. The purpose of this lab is to identify and examine the oxidation-reduction…

    • 1193 Words
    • 5 Pages
    Improved Essays
  • Great Essays

    Unknown Salt Lab Report

    • 1742 Words
    • 7 Pages

    During the entire lab, the main purpose was to, Identify the given unknown salt through a variety of experiments which yielded valuable quantitative and qualitative data. Before any experiments were carried out, multiple properties were compiled in order to have a source to compare the found results with. Beginning with the first experiment to determine if the unknown salt was hygroscopic, efflorescent, deliquescent or none of the above properties. This test was done through weighing an amount of the salt and reweighing after 15 minutes which would show if the salt had one of the above properties (either by gaining mass from the air, losing mass to the air, turning to solution) or none of the properties. Furthermore, tests were done to identify…

    • 1742 Words
    • 7 Pages
    Great Essays