Identity Of A Hydrate Lab Report

Improved Essays
5861
What is the identity of the unknown hydrate? Hydrates are pure substances that contain water molecules embedded in their crystal structures. When a hydrate is heated the water molecules evaporate leaving behind a solid known as anhydrous. The identity of a hydrate can be found by finding out the percent water in the hydrate. The experiment was done in a manner to find the percent water in an unknown hydrate to identify the hydrate. The hydrates were BaCL2*2H2O, CuSO4*5H2O, CaCL2*2H2O, and ZnSO4*7H2O and each has a different percent water in the hydrate. Determining the percent water in the hydrate would allow for the identity of the hydrate to be found. In order to determine the percent water in a hydrate, the mass of the hydrate, the

Related Documents

  • Improved Essays

    This lab makes use of the reaction excess powdered calcium carbonate and different concentrations limiting hydrochloric acid in order to determine the effect of changing concentration on the rate of the reaction. Students will carry out 3 trials of 5 experiments each trial. The five different experiments are for the various concentrations of hydrochloric acid (0.2, 0.4, 0.6, 0.8, 1.0 mol/L). First measure out approximately 2 grams of powdered calcium carbonate using a weighing boat and analytical balance. Then, measure out 30 mL of 0.2 M hydrochloric acid into a volumetric flask.…

    • 198 Words
    • 1 Pages
    Improved Essays
  • Improved Essays

    Doc. Anthony Miller, a physicist, and an engineer, with him Doc. Stephen Strange who had the same expertise as Doc. Anthony Miller. They were transported to Area 51 which was a secret military facility, they were brought there to work on a project.…

    • 450 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Of course to determine the identity of this nine unknown solutions a sequence of solubility tests…

    • 791 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Unknown Lab Report

    • 750 Words
    • 3 Pages

    Visual comparison of the available solid and aqueous compounds to the unknown was done first so as to eliminate unnecessary testing. A 30.0 g/mL solution of the unknown was made in a beaker by dissolving 1.000 g of the unknown in 30.0 mL of distilled water. Before weighing out 1.000 g of the unknown, the scale was zeroed out with a piece of weighing paper (square cut-out of normal paper) on it. Using a scoopula, 1.000 g was the compound was carefully placed on the weighing paper and measured to exactly 1.000 g. These same measurements and procedures were used when solutions of calcium chloride and nitric acid were created using separate beakers. Portions of each solution were then poured into test tubes (exact measurements were not necessary for this step).…

    • 750 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Unknown Compounds

    • 695 Words
    • 3 Pages

    This was significant to determine because these reactions give information on how the compound would react and behave in the local landfill and surrounding environment. The similarity of the qualitative results of the unknown compound and the known compound further suggested that the unknown compound was sodium sulfate. During the third week of lab, the group conducted the quantitative solubility test to determine the saturation point of the compound in water. If a precipitant formed, vacuum filtration would be used to figure out the amount of solid material left behind.…

    • 695 Words
    • 3 Pages
    Improved Essays
  • Superior Essays

    Unknown Lab Report

    • 1472 Words
    • 6 Pages

    An unknown sample #18 was obtained on November 6, 2017. The sample came in a glass test tube with a cotton swab that contain the unknown sample. To find the identity of the unknown sample, we had to conduct several biochemical tests to eliminate and narrow down possible organisms that fit the biochemical description to accurately identify our unknown organism of interest. These biochemical tests provided insight on the physical color retention of our unknown sample, and through’s the unknown organism’s ability to break down tested compounds to determine if it had the corresponding enzyme that would allow it to do so. The testing of unknown organisms to accurately discover its identity is crucial in the field of health science.…

    • 1472 Words
    • 6 Pages
    Superior Essays
  • Improved Essays

    Unknown Compounds

    • 816 Words
    • 4 Pages

    Given an unknown compound in container 3, solubility tests, cation tests, anion tests, and conductivity tests can be used to determine the various properties of the unknown to then make a positive identification of the unknown. These results will not only show chemical and physical properties but also what the unknown compound might react with to form other compounds. After performing the four anion tests, a positive identification was able to be made showing that the unknown compound contained a chloride ion since a white precipitate was formed from the reaction (Table 1). The sulfate, nitrate, and carbonate tests all yielded negative results when no precipitate was formed. The reaction of the chloride anion is as follows: Cl-…

    • 816 Words
    • 4 Pages
    Improved 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
  • Superior Essays

    Chloride Anion Tests

    • 2213 Words
    • 9 Pages

    If a sulfate anion was present in the unknown solution, then the anion would combine with the barium and form the precipitate, BaSO4, and the chlorine ion would combine with the unknown’s cation. In this case a sulfate anion was present in the unknown so the sulfate combined with barium in the form of a precipitate, and the potassium combined with the chloride ion as an aqueous solution. The same fundamentals are used when testing for a chloride anion. If a chloride anion is present, except in the absence of sulfate, bromide, and iodide, when the unknown solution is combined with 6 M HNO3 and AgNO3 the chloride anion will combine with the Ag and form a precipitate in the…

    • 2213 Words
    • 9 Pages
    Superior Essays
  • Improved Essays

    Mgo4 C6hco3

    • 597 Words
    • 3 Pages

    Not only do you have to figure it out but you have a claim. A class has come to the conclusion of MgSO4 , C6H8O7, and NaHCO3 being in this mixture. Claim: The class had to defend their reason with the data from chemical and physical properties. Starting with the physical they were only allowed to touch, smell, and shake/hear the mystery mixture at first until we were handed a platter of chemicals. Students began mixing up mixtures…

    • 597 Words
    • 3 Pages
    Improved Essays
  • Great Essays

    Formula Of Sulfate

    • 1517 Words
    • 7 Pages

    The percent mass calculated in this experiment will not be similar to the results of other groups. Since the percent mass calculated is an average, it is most likely that the number calculated is different from the actual number of hydrates in the formula. In addition, all the masses calculated are subject to possible random errors which would differ our results from those of others. Otherwise, in the theoretical situation, our percent mass would be the same since the amount of hydrate is the same across all…

    • 1517 Words
    • 7 Pages
    Great Essays
  • Improved Essays

    I can infer the liquid unknown was Lithium because they both reacted very similar (bright pink-red), and the solid unknown was sodium becasue they both had an emediate bright orange, opaque flame. This test should be used for identifying unknown elements becasue when the substnace is introduced to heat, the atoms in he element gets excited. When they get excited, the electrons from the atom jump to a higher orbitals, then fall back down to the lower levels where they started. When they fall, they release energy in the form of light. When the light energy is given off, it is given off as a spectrum of lines, but they are not visable.…

    • 219 Words
    • 1 Pages
    Improved Essays
  • Great Essays

    Flame Test Lab Conclusion

    • 1167 Words
    • 5 Pages

    The metal ions BsCl and LiCl are in the unknown solutions A and B from the barrels on the vacant lot. 3. A student performed flame tests on several unknown substances and observed that all of the flame colors were shades of red. What could the student do to correctly identify these substances?…

    • 1167 Words
    • 5 Pages
    Great Essays
  • Decent Essays

    Objective of the identification of a pure substance lab is to identify a substance, such as boiling point and density. My partner and I used boiling, and density to identify the substance. By boiling the substance in hot water, we could find an average boiling point. Then, by measuring mass, volume, and density of the substance, we could come to a conclusion. The unknown substance is cyclohexane.…

    • 201 Words
    • 1 Pages
    Decent Essays
  • Great Essays

    When calculating the quantitative solubility of the unknown compound in water, the amount of water that was measured in the hydrated cylinder and poured into the flask could have been greater than expected. This is more likely than less water being used because more solute was needed to saturate the solution than expected. Another error that could have occurred during this part of the experiment was that too much of the unknown compound was added accidently to the solution than could dissolve. Most of the error in this lab occurred during the quantitative analysis since all of the percent yields of the precipitate were over 100%. This miscalculation could have been caused by the beakers not being washed out thoroughly between each reaction or by the mass of KCl measured on the electronic scale being greater than exactly 0.5 grams.…

    • 1428 Words
    • 6 Pages
    Great Essays