Hydrate Formula

1371 Words3 Pages

Kesean Williams Brantley Miller Pd. 11 1/11/16 Determination of a Formula for a Hydrate Introduction The focus of the experiment will be a hydrate of copper (Ⅱ) sulfate (CuSO4 ᐧ5H2O) The object of this experiment will be to find the experimental formula for the hydrate of CuSO4 by heating the crystal to dryness. The success of the lab will be determined by how accurate the experimental formula is compared to the actual formula. Theory If heat is applied to Copper (Ⅱ) sulfate pentahydrate, then the experimental form will be equivalent to the theoretical formula. Important key data that will be needed to achieve the goal of the lab experiments includes the initial mass of hydrated crystal, the final mass of anhydrous crystal, the …show more content…

This piece of data was used to find the mass of water driven off. In order to find the mass of water driven off, another value--the final mass of anhydrous crystal, was subtracted from the initial mass of hydrated crystal. This value was found to be .90 grams. The mass of water driven off was determined to be .61 grams. The molar mass of water, which is 18.02 grams, was used together with the mass in grams of water driven off to find the moles of water driven off. The moles of water driven off was calculated to be.034 moles. This value was a crucial half of the experimental formula, and thus crucial to the lab. The final mass of anhydrous crystal was used together with the molar mass of CuSO4 to find the moles of anhydrous crystal. The molar mass of CuSO4 was found by using the periodic table to find the total mass in grams of one copper atom, one sulfur atom, and four oxygen atoms. The moles of anhydrous crystal was determined to be .0056 moles. This was the other crucial half of the experimental formula, thusly crucial to the lab. The experimental mole ratio of H2O CuSO4 was found to be 6.1:1. This information was used to find the experimental formula of the hydrated crystal. The experimental formula was found to be CuSO4 6.1H2O. This formula was compared to the theoretical formula in order to derive the percent error. The percent error was calculated to be 22%. This crucial value was what described how successful the experiment ultimately

Show More
Related

  • Hydrated Potassium Aluminum Sulfate

    1016 Words  | 3 Pages

    The purpose for this lab was to use aluminum from a soda can to form a chemical compound known as hydrated potassium aluminum sulfate. In the lab aluminum waste were dissolved in KOH or potassium sulfide to form a complex alum. The solution was then filtered through gravity filtration to remove any solid material. 25 mLs of sulfuric acid was then added while gently boiling the solution resulting in crystals forming after cooling in an ice bath. The product was then collected and filter through vacuum filtration. Lastly, crystals were collected and weighed on a scale.

    Read More

  • The change in enthalpy for the combustion of magnesium metal

    1121 Words  | 3 Pages

    We began this investigation by suiting up in lab aprons and goggles, we then gathered our materials, found a lab station and got to work. We decided to start with the magnesium in hydrochloric acid first, we measured out 198.5 L of HCl and put it in the foam-cup calorimeter and took initial temperature reading. We then selected a piece of magnesium ribbon and found its mass: 0.01g. This piece was placed in the calorimeter and the lid was shut immediately to prevent heat from escaping. We “swirled” the liquid mixture in the calorimeter to ensure a reaction, and waited for a temperature change. After a few moments, the final temperature was recorded and DT determined.

    Read More

  • Copper Cycle Lab Report

    523 Words  | 2 Pages

    The purpose of this lab was to to cycle solid copper through a series of chemical forms and return it to its original form. A specific quantity of copper undergo many types of reactions and went through its whole cycle, then returned to its solid copper to be weighted. We observed 5 chemical reactions involving copper which are: Redox reaction (which includes all chemical reactions in which atoms have their oxidation state changed), double displacement reaction, precipitation reaction, decomposition reaction, and single displacement reaction.

    Read More

  • Unknown Hydrate Lab Report

    66 Words  | 1 Pages

    I did accomplish the purpose of the lab. First, I determined the percentage of water in alum hydrate, and the percentage of water in an unknown hydrate. The results are reasonable because they are close to the example results. Second, I calculated the water of crystallization of an unknown hydrate. Furthermore, I developed the laboratory skills for analyzing a hydrate.

    Read More

  • Precipitation Reaction Lab

    1333 Words  | 3 Pages

    A precipitation reaction can occur when two ionic compounds react and produce an insoluble solid. A precipitate is the result of this reaction. This experiment demonstrates how different compounds, react with each other; specifically relating to the solubility of the compounds involved. The independent variable, will be the changing of the various chemical solutions that were mixed in order to produce different results. Conversely the dependent variable will be the result of the independent variable, these include the precipitates formed, and the changes that can be observed after the experiment has been conducted. The controlled variable will be the measurement of ten droplets per test tube.

    Read More

  • Lab Report Determining the Molar Volume of a Gas

    333 Words  | 1 Pages

    The first step that we took to accomplish our goal was to put on our safety goggles and choose a lab station to work at. We received one 400ml beaker, one polyethylene pipet, two test tubes with hole rubber stoppers, two small pieces of magnesium (Mg), one thermometer and a vial of hydrochloric acid (HCl). We took the 400ml beaker and filled it about 2/3 full of water (H20) that was 18 OC. Then we measured our pieces of Mg at 1.5 cm and determined that their mass was 1.36*10-2 g. We filled the pipet 2/3 full of HCl and poured it into one of the test tubes. Then, we covered the HCl with just enough H2O so that no H2O would be displaced when the stopper was inserted. After inserting the stopper, we placed the Mg strip into the hole, inverted the test tube and placed it in the 400ml beaker. HCl is heavier than H2O, so it floated from the tube, into the bottom of the beaker, reacting with the Mg along the way to produce hydrogen gas (H2). We then measured the volume of the H2, cleaned up our equipment and performed the experiment a second time.

    Read More

  • Kinetic Factor Lab Report

    929 Words  | 2 Pages

    However, only experiments IV “Effect of Copper Metal” and V “Effect of Temperature” had reasonable results, so copper metal and temperature are the more effective factors. The less effective factors are the changes in concentrations of "H" ^"+" ions and "C" _"2" "O" _"4" "H" _"2" particles. This observation is represented in experiments II “Effect of "H" ^"+ " Ions” and III “Effect of "C" _"2" "O" _"4" "H" _"2" Concentration.” Both runs 2B and 2C had the fastest times of 25 seconds and 86 seconds

    Read More

  • Mystery White Solid Lab Report

    264 Words  | 1 Pages

    Solid A was identified to be sodium chloride, solid B was identified to be sucrose, and Solid C was identified to be corn starch. Within the Information Chart – Mystery White Solid Lab there are results that distinguishes itself from the other 4 experimental results within each test. Such as: the high conductivity and high melting point of sodium chloride, and the iodine reaction of corn starch. Solid A is an ionic compound due to its high melting point and high electrical conductivity (7), within the Information Chart – Mystery White Solid Lab there is only one ionic compound which is sodium chloride, with the test results of Solid A, it can be concluded that is a sodium chloride. Solid B was identified as sucrose due to its low electrical

    Read More

  • Chemistry: Magnesium Hydroxide And Citric Acid

    984 Words  | 2 Pages

    One possible source of experimental error could be not having a solid measurement of magnesium hydroxide nor citric acid. This is because we were told to measure out between 5.6g-5.8g for magnesium hydroxide and 14g-21g for citric acid. If accuracy measures how closely a measured value is to the accepted value and or true value, then accuracy may not have been an aspect that was achieved in this lab. Therefore, not having a solid precise measurement and accurate measurement was another source of experimental error.

    Read More

  • Obtaining Zinc Oxide from Calamine

    896 Words  | 2 Pages

    The relationship between the mass of malachite used and the amount of copper oxide obtained was proportional. Malachite and calamine are next to each other in the

    Read More

  • Egg Albumen Experiment

    1251 Words  | 3 Pages

    == § Test tubes X 11 § 0.10 molar dm -3 Copper (II) Sulphate solution § distilled water § egg albumen from 3 eggs. § Syringe X 12 § colorimeter § tripod § 100ml beaker § Bunsen burner § test tube holder § safety glasses § gloves § test tube pen § test tube method = == = =

    Read More

  • Empirical Formula of Magnesium Oxide

    583 Words  | 2 Pages

    Aim: The aim of this experiment was to determine the empirical formula of magnesium oxide.

    Read More

  • To investigate the temperature change in a displacement reaction between Copper Sulphate Solution and Zinc Powder

    1074 Words  | 3 Pages

    To investigate the temperature change in a displacement reaction between Copper Sulphate Solution and Zinc Powder

    Read More

  • Hydrochloric Acid And Solid Sodium Chloride Lab Report

    913 Words  | 2 Pages

    Based on your experiments what is the formula of the colorless gas that is released when heating the malachite?

    Read More

  • Investigation to Identify the Formula of Hydrated Copper Sulphate

    1583 Words  | 4 Pages

    of Copper Sulphate. To do this I plan to work out the amount of water

    Read More

More about Hydrate Formula

Open Document