product in a chemical reaction‚ and if a new substance would be produced due to chemical reactions. Materials: - pyrex test tube 13 x 100 mm - 100 ml beaker - wire gauze‚ ceramic centered -1.0 M copper (II) nitrate -1.5 M sodium hydroxide -1.5 M hydrochloric acid -12 cm piece of aluminum wire Procedure: In the beaker‚ heat 50 ml water make three marks from bottom to top on the test tube that are one cm apart Add 1.0 M copper (II) nitrate to the first mark Add 1.5 M sodium hydroxide to the second
Premium Chemistry Chemical reaction Sodium
A diagram of the voltaic pile is shown below: Blotting paper soaked in Zinc metal H2SO4 (aq) Copper metal One cell Which of the following statement(s) is/are correct? 1 2 3 The overall equation of the reaction occurring in the cell is Cu2+ + Zn Zn2+ + Cu. Zinc is the anode‚ while copper is the cathode. cathode The e.m.f. of the voltaic pile can be increased by stacking more elements 37 When drops of NaOH
Premium Chemistry Mathematics Question
Calcium Hydroxide Titrated with Hydrochloric Acid By: Juliana Kadiasi Signature__________________________________________ (Experimental team: Ashley Tsao‚ Sophie Alvarez‚ Catherine Hering) IB Chemistry HL B3 For: Mr. Ahmed. Belmir 15 September 2014 Criteria Aspect IA IA Total Design 1. Identified Problem & relevant variables 2. Procedure controls variables 3. Procedure & relevant sufficient data Data Collection & Processing 1. Precise & accurate
Premium Hydrochloric acid Chlorine Hydrogen
applied to a system at equilibrium. However‚ only concentration and temperature were observed in this experiment. Part 1: Cobalt Complexes Table 1 shows the color change of the cobalt chloride solutions as water‚ different concentrations of hydrochloric acid‚ and sodium chloride were added as well as the number of drops that caused the color change. Color of cobalt chloride in ethanol: Violet Color of cobalt chloride in water: Red Medicine Dropper Calibration: 1 mL = 16 drops Table
Premium Management Balance sheet Generally Accepted Accounting Principles
determine its purity using a known volume of standard sodium hydroxide‚ due to the fact that it is only readily hydrolysed (hydrolysis: the breakup of molecules with the use of water) by alkalis and was then tittered with a standard solution of Hydrochloric Acid. *Referencing* Method: * A 250cm3 conical flask was weighed and its weight was recorded. Then 4 aspirin tablets were placed in the weighed conical flask and reweighed (weight 2). This weight was then recorded‚ and the mass of the weighed
Premium Sodium hydroxide Titration Chlorine
HKDSE CHEMISTRY – A Modern View (Second Edition) (Chemistry) Coursebook 4A Suggested answers Chapter 36 Rate of chemical reaction Page Number Class practice 1 Think about 5 Chapter exercise 5 Chapter 37 Factors affecting rate of reaction Class practice 11 Think about 14 Writing practice 14 Chapter exercise 14 Chapter 38 Molar volume of gases at room temperature and pressure (r.t.p.) Class practice 21 Self-test 24 Think about 26 Chapter exercise 27 Part exercise 34 Chapter 39 Dynamic equilibrium
Premium Mole Carbon dioxide Hydrochloric acid
Chlorine contains 17 protons and 18 neutrons in is nucleus. There are two isotopes for chlorine as well; Cl-35 and Cl-37. Chlorine was discovered in 1774 by Swedish chemist Carl Wilhelm Sheele. Sheele came upon chlorine when he put a few drops of hydrochloric acid (HCl)‚ then known as muriatic acid‚ onto a piece of manganese dioxide (MnO2). This caused a reaction where the pricduct was a yellowish-green gas that would later be named chlorine. At this point Sheele thought that this gas contained oxygen
Premium Chemistry Carbon dioxide Sodium hydroxide
using the Bunsen Burner 4. Allowed the reaction to proceed for a total of 15 seconds. 5. Placed the glowing splint into the test tube 6. Recorded the results Part 2: Magnesium strip and Hydrochloric acid 1. Poured 3mL of hydrochloric acid into a test tube 2. Placed the magnesium strip into the hydrochloric acid into the tube and immediately covered the tube with a rubber stopper. 3. Allowed the magnesium strip to dissolve completely. 4. Carefully inserted a burning splint into the test tube
Premium Chlorine Carbon dioxide Oxygen
Determination of the Solubility of Calcium Hydroxide Apparatus * Solid calcium hydroxide * 0.4 mol/dm hydrochloric acid * Distilled water * Pipette * Triple valve rubber pipette filler * Conical flask * Beaker * White tile * Clamp and stand * Methyl orange indicator Producing the calcium hydroxide solution 1. Roughly fill a beaker with 200cm³ of distilled water. This does not need to be accurate because samples will be taken from this. 2. Add solid calcium
Free Titration Laboratory glassware PH indicator
NO:7 ACID - BASE TITRATION Name of the student : Duru Aksoy Name of the instructor: Serenay Tarhan Güler Criteria to be evaluated: DCP and CE Introduction The purpose of this investigation is to determine the concentration of an hydrochloric acid (HCl) solution by titrating it with sodium hydroxide (NaOH) solution of accurately known concentration. Titration is a common laboratory method of quantitative chemical analysis that is used to determine the unknown concentration of an identified analyte
Premium Titration Chlorine Sodium hydroxide