The purpose of this experiment was to test and see how four different chemical reaction worked. The four different chemical reactions are formation, decomposition, single-replacement, and double-replacement. The hypothesis of this experiment was that in each of the different reactions something would happen to the reactant whether it be color, mass, temperature, or pressure.
For this experiment Late Nite lab was used. In Late Nite Lab the equipment was: a balance, a crucible, a Bunsen Burner, a 150 mL Erlenmeyer flask, a thermometer, a pressure gauge, a syringe, two 50 mL beakers, magnesium (Mg), Copper(II) Carbonate Hydroxide Hydrate (Cu2CO3(OH)2 x H2O,) 6M Hydrochloric acid (HCl), Zinc (Zn),…
In this lab there was 2 objectives which where to recognize when a chemical reaction has occurred and practice collecting detailed observations in the laboratory using proper scientific terms.
Reaction set #1
(1a) place approximately 1 ml of 0.1 M Pb (No3)2 solution into a test tube. Then sequentially add drops of 0.25M k2CRO4 solution until you see evidence of a chemical reaction. The products of this reaction are aqueous KNO3 and solid PbCrO4.
(1b) place approximately I ml of .1M Pb (NO3)2…
Recently in class we have watched other scientists conduct experiments and show how six elements ( Lithium, Sodium, Potassium, Rubidium, Cesium, Francium ) reacted if they were added to water. Each scientist had did this experiment on each element except Francium so, we inferred that Francium had the worst reaction and must be dangerous. So because of curiosity, we have conducted the same lad to see how these elements reacts ourselves. In this lab, my group and I had to examine chemical…
The Rate of Chemical Reaction and the Factors Affecting Reaction Rates
The purpose of these labs is to investigate and determine how three factors- concentration, temperature, and a catalyst- affect the rate of a chemical reaction. In the first lab, “Rate of Chemical Reaction,” 1 x 8-well micro strips were used to combine a potassium iodate solution and a sodium meta-bisulfite solution under different conditions; each trial was timed from the point of the first visible reaction until the last…
A chemical reaction is a process in which one or more substances, which are the reactants, are converted to one or more different substances, which are the products. The substances in a chemical reaction are either chemical elements or compounds. There are different observations that indicate a chemical reaction has taken place. Formation of precipitate, which is a solid formed in a chemical reaction. Precipitate can take place when solutions containing ionic compounds are mixed and an insoluble…
“Classifying Chemical Reactions - Lab Report”
I - Introduction -
Chemistry is the study of the composition, structure, properties and change of matter. In chemistry, chemical and physical changes are used to help scientists understand how different substances react given various circumstances. A chemical change is any change resulting in the formation of a new chemical substance(s). A physical property is any change that does not involve the chemical makeup of a substance at all. In total…
Comparing the masses, after and before reaction
To determine if mass is preserved in a chemical reaction conducted with vinegar and Sodium bicarbonate.
The mass of the flask and vinegar after the reaction will be less due to the fact that it is losing the gas which is being produced when the elements are mixed. However part B will be altered as the gas will be preserved inside the balloon.
appearance. In part I, reaction one produced a blinding, bright white light when the metal burned and the metal turned into a white powdery substance. For reaction two, there was no reaction at first and it took a long time for it to react, but then bubbles started to form around the magnesium ribbon and the substance turned into a pink-yellowish color around the magnesium strip when it was placed in the 150 milliliters beaker. The physical observations of reaction three was the magnesium strip…
Haines et al., A neutron diffraction study of quartz-type FePO4: high-temperature behavior and αβ phase transition Kristallogr. 218, 193-200 (2003)
Crystal chemical relationship between quartz (SiO2) and FePO4
Silicon dioxide is an oxide of silicon with the chemical formula of SiO2. SiO2 is a chemical compound most commonly found in Quartz and it has a space group of P3121. The lattice symmetry of SiO2 is tetrahedron, where there are 4 oxygen atoms covalently bonded to the silicon…
A reversible chemical reaction is a reaction which can proceed in both the forward and backward directions which can be represented by the symbol . A reaction comes to equilibrium when the rate of reaction of the reactants is equal to that of the rate of reaction of the products. An example of a reversible chemical reaction is one which occurs in the pool between chlorine and water (Deb Smith, 2006).
A reaction takes place with water to produce hypochlorous acid, HOCL…