ipl-logo

Supernate Lab

427 Words2 Pages

Me and my lab partner Ariana camper had unknown solution C. we had 8 ions but we only used five out of the 8 and the five we used to be pb2+,Fe3+,Ca2+,NH4+ and Na+. we figured out that our solution had Lead, because during the experiment we separated the supernate and the precipitate; we retrieved the supernate and added 1M K2CrO4. As swiftly as possible we added K2CrO4 to the supernate. soon as I did that it turned yellowish rapidly. although, we had tested Ag+ we had no precipitate form in our solution. accordingly, we did not have to test for Ag+ since no precipitate formed and skipped the entire process for Ag+. carrying on to the next step we had to test for iron. Before we can start testing for iron. I had to prepare the solution, preparing the solution contained taking the supernate that we made from group one and adding the following; NH4Cl, NH3, water and (NH4)S to the solution along with adding …show more content…

once we did that we added HCl to the precipitate. Then we had to centrifuge the solution and put the supernate into two test tubes to test for ions and nickel. In the experiment, we tested positive for iron but then tested for nickel and didn’t get anything. The reason behind this was when we added .2M KSCN to our supernate and turned it a dark red color swiftly. after we added NH3 to the solution, a precipitate formed for nickel. we mixed everything together which formed an orange specks of precipitate formed. we tested calcium and in our unknown we did have calcium. precipitate formed when we added K2C2O and NH3 to the supernate. Then, we did flame test and we see a color changed to see if calcium appeared which it

Show More
Related

  • Essay On Penny Lab

    444 Words  | 2 Pages

    An error that could have been present during the lab includes not letting the zinc react completely with the chloride ions by removing the penny too early from the solution. For instance, the percent error of this lab was 45.6%, which was determined by the subtraction of the theoretical percent of Cu 2.5% and the experimental percent of Cu 3.64% and dividing by the theoretical percent of Cu 2.5%. This experiment showed how reactants react with one another in a solution to drive a chemical reaction and the products that result from the

    Read More

  • Procion Red Dye Lab Report

    1454 Words  | 6 Pages

    While the solution dissolved, 50 mL of distilled water was added to a 150 mL beaker and heated on the hot plate. When the solution started to boil 2.65 grams of Na2SiO3*5H2O was added to the beaker with a stir bar and heated to a gentle boil. When both solutions began to boil, the sodium silicate solution was slowly added to the sodium aluminate. The solution was kept at 900C for 60 minutes and stirred with stir bar. After 60 minutes, the zeolite solution was cooled for 5 minutes and for the magnetized zeolite , 0.78 grams of FeCl3 and 0.39 grams of FeSO4*7H2O was added to the flask and stirred until the iron parts dissolved.

    Read More

  • Nt1310 Unit 4 Coursework

    1433 Words  | 6 Pages

    Coursework Equipment List • Boiling tubes (8) I will use these because this is where I will mix both the sodium carbonate and the strontium nitrate in order to form the precipitate. I need 8 because I am going to add 8 different amounts of strontium nitrate (1-8cm³) to the 8cm³of sodium carbonate. • Measuring cylinder (1) I will use this to measure the 8cm³ of sodium carbonate and the varying amounts of strontium nitrate to put into the test tubes. • Sodium Carbonate (enough to fill 8 boiling tubes with 8cm³/64cm³)

    Read More

  • Metal Cations In The Crucible

    90 Words  | 1 Pages

    Metal cations can be identified based on the colors they emitted off when heated in a flame.1 When atoms of the ions that were tested are excited, their electrons move up to higher levels of energy.2 When the electrons relax and return to the original states, they emit photons of specific energy creating wavelengths of light that produces colors.3 The test wire and Bunsen Burner were used to excite the solution in the crucible. The standard metal cations that were tested and their outcomes are as shown in Table 1.

    Read More

  • Unknown Compound

    1270 Words  | 6 Pages

    The anion tests followed the cation tests. To test for the presence of the chloride (Cl-) anion, a small scoop of the unknown compound was mixed with 1 mL of water in a test tube to create a solution. Then, 1 mL of 6 M nitric acid (HNO3) and 1 mL of silver nitrate (Ag(NO3)2) solution were added to the test tube to see if a white precipitate formed. To test for the presence of the sulfate (SO42-) anion, a small scoop of the unknown compound was mixed with 1 mL of water in a test tube to create a solution. Then, 1 mL of 6 M hydrochloric acid (HCl) and 1 mL of barium chloride (BaCl2) solution were added to the test tube to see if a white precipitate formed.

    Read More

  • Pglo Lab

    1396 Words  | 6 Pages

    Introduction: Transforming a gene or genetic information from one organism into another with the hopes that if done successfully the organism with the new DNA will be given new traits is a method known as genetic transformation (Rafter). Genetic transformation is used quite frequently in today’s world, form medicine to agriculture. In this lab we will be inserting a gene into an Escherichia coli bacteria with the help of a plasmid. Escherichia coli bacteria also known as E. coli, is a bacterium that is rod shaped and contains flagella to help it move.

    Read More

  • Fire Lab Reference Table

    614 Words  | 3 Pages

    The hypothesis stated the further away the water source is from civilization, the less unnatural ions there will be present in it.. The reference table shows that only phosphate and chlorine is present in the sample. In the reference table the results show that the liquid in the sample test tube did not change color in the sample test tube with the ion samples of calcium and iron III. The significance of making the Results from the Test Tubes Displaying the Observations from the Lab reference table was to find what kind of ions (out of the four that were researched) were found inside of the fire pond on Tamarack road in Lee, New Hampshire.

    Read More

  • Copper Cycle Synthesis

    578 Words  | 3 Pages

    The heating of the solution caused the reaction to start which decomposed Cu(OH)2 and made the solution colorless and darkened the precipitate. The fourth step was the formation of CuSO4. After the solution was decanted from the precipitate and washed with near boiling water, 6 M H2SO4 was added to the beaker containing Copper (II) Oxide and this caused the precipitate to dissolve and the liquid become clear blue. The last step was the formation of Cu(s). This step recovered Solid elemental copper.

    Read More

  • Gunshot Residue (GSR) Evidence

    1559 Words  | 7 Pages

    On the orange ring 5% sodium rhodizonate is added. Red color formation shows the presence of Barium (Ba) and Lead (Pb). On the red color spot HCL is added after drying the swab. If it turns into blue, it confirms the Lead and no change in color confirms the Barium.

    Read More

  • Acetylsalicylic Acid Synthesis Lab Report

    704 Words  | 3 Pages

    Pure ASA crystals are isolated from the solution with a Hirsch Funnel that was used with a filter. The melting point of the pure ASA crystals were calculated in order to calculate of absorbance. Iron (III) salicylate dianion must contain the acidified solution Fe3+ in order to measure the absorbance values. The level of the impurity can

    Read More

  • Unknown White Compound Lab Report

    1367 Words  | 6 Pages

    Next, a 10 mL beaker is filled with 3 mL of HCl and measure 10 mL of ionized water into a 140 mL beaker. Carefully turn on laboratory burner and start cleaning the Nichrome wire by dipping it into concentrated HCl acid. Hold the Nichrome wire on top of the flame and repeat the step until the wire doesn 't show any color. When the wire is clean, dip the wire again with some of the acid and dip it into the solution with the unknown compound in it. Place the wire back into the flame again and observe the color of the flame.

    Read More

  • Copper Recovery Lab Report

    471 Words  | 2 Pages

    Throughout the experiment, copper was altered a total of 5 times, but after the final chemical reaction, solid, elemental copper returned. Each time the solution changed color, a precipitate formed, or when gas appeared, indicated that a chemical reaction was occurring. For the first reaction, copper was added to nitric acid, forming the aqueous copper (II) nitrate (where the copper went), along with liquid water, and

    Read More

  • Glycerin's Melting Point Lab Report

    702 Words  | 3 Pages

    Firstly, unknown B has a low melting point, a prominent characteristic among covalent compounds. This is due to the attraction between the atoms not being as reinforced as an ionic compound, thus it takes less energy to separate. In addition, unknown B has a very low solubility and conductivity, this is due to the atoms sharing electrons, therefore they cannot have the ability to separate and form an ion. However, it should be noted that covalent compounds should most definitely not be conductive or soluble, but the results have shown otherwise, thus it should be concluded that there may have been contamination between the scoopula’s used. Conclusion

    Read More

  • Deoxyribose Lab

    2057 Words  | 9 Pages

    The reagents used were Diphenylamine reagent which contains concentrated H2SO4. The standard solution used for this test is the deoxyribose standard solution. In the sample, only a faint blue solution appeared, which indicates a small presence of deoxyribose. In test for Phosphate, the standard solution was the Phosphate solution and the reagents used were concentrated H2SO4, concentrated HNO3, 2.5% ammonium molybdate solution.

    Read More

  • Lead Poisoning Experiment

    224 Words  | 1 Pages

    If this glaze does contain lead it to emit a large amount of lead into the coffee, which Mr. Victim then

    Read More

More about Supernate Lab

Open Document