Observation of Chemical Changes Purpose In this experiment‚ the student studied the composition of materials in a setting where the indications of chemical changes were safely observed. The changes observed consisted of bubble formation‚ colors‚ viscosity‚ and precipitate formation. Procedure Using a well plate: use a different well for each chemical combination. Two drops (unless otherwise noted) of each chemical in the combinations (below) should be placed in one well. A dark and light
Premium PH indicator PH Acid
THE CLASSIFICATION OF CHEMICAL REACTIONS Danny Bhatt SCH3U0-G Mr. Gandhi Wednesday‚ April 1st‚ 2014 INTRODUCTION The purpose of this lab is to determine the different types of chemical reactions and differentiate between them based on similar characteristics of each set category. In this lab it is hypothesized that every chemical reaction which was observed would fall under already set categories (that are: synthesis‚ decomposition‚ single displacement‚ double displacement‚ combustion and
Premium Chemical reaction Oxygen Chemistry
Introduction The reaction rate of a chemical reaction is determined as the change in the concentration of a reactant or product over the change in time. [1] The rate of a reaction is determined by experiment. Many factors influence the rate of a reaction: the nature of the reaction‚ concentration‚ pressure‚ temperature‚ and surface area‚ presence of catalyst and intensity of light. [2] For a chemical reaction‚ the rate law or rate equation is a mathematical expressed equation that links the reaction
Premium Chemical reaction Reaction rate Chemical kinetics
13 2013 from http://www.gatesfoundation.org/What-We-Do/Global-Health/Tuberculosis/Strategyoverview Burnham‚ R Centers for Disease Control and Prevention (2000). "Targeted tuberculin testing and treatment of latent tuberculosis infection". MMWR 49 (RR–6): 31–32. PMID 10881762. Collins‚ L. S.‚ and Franzblau‚ S. G. (1997). Microplate Alamar Blue assay versus BACTEC 460 system for high throughput screening of compounds against Mycobacterium tuberculosis and Mycobacterium avium. Antimicrob. Agents Chemother
Premium Tuberculosis
Colligative Properties 202-NYB-05 (Group 06.) By: Jordan Hribar 1034044 Partner: Anthony Cuillierier Teacher: Daniel Baril Experiment Done: February 23rd‚ 2011 Experiment Number 2. Introduction Some of the properties unique to solutions depend only on the number of dissolved particles and not their identity. Such properties are called colligative properties. The colligative property that will be examined in this experiment will be the freezing point depression as an example
Premium Freezing-point depression Solution Solutions
LAB REPORT 6 – IONIC REACTIONS No credit will be given for this lab report if the Data section is not completely filled out. OBJECTIVES 1. Study the nature of ionic reactions 2. Write balanced equations 3. Write net ionic equations for precipitation reactions PROCEDURE Please complete the entire experiment as instructed in the lab manual except for any modifications noted below. Fill out the report below‚ insert your digital photographs into the report‚ and submit it me electronically
Premium Ion Solubility Sodium chloride
The chemical designation is 3-[2-[4-(6-fluoro-1‚ 2-benzisoxazol- 3- yl)-1-piperidinyl] ethyl]-6‚7‚8‚9-tetrahydro- 2-methyl-4H-pyrido [1‚2-a]pyrimidin- 4-one. Its molecular formula is C23H27FN4O2 and its molecular weight is 410.49 (Salwan et al. 2013) Risperidone is a white
Premium Schizophrenia Major depressive disorder Dopamine
Chemical equilibrium is the point at which the concentrations of reactants and products do not change with time. It would appear as if the reaction has stopped‚ but in fact‚ the rates of the forward and reverse reactions are equal‚ causing the reactants and products to be created at the same rate. This can be expressed mathematically in the form of the equilibrium constant. The following is the general equation for a reversible chemical reaction: aA+bB →cC+dD
Premium Chemical reaction Chemistry Reaction rate
CHM130 Lab 6 Exploring Density Name: Paige Miller A. Data Tables Place your completed Data Tables here: Part IIIa (3 points) Volume of water in graduated cylinder (mL) 10.00 mL Mass of rubber stopper (g) 11.37 g Volume of water and rubber stopper (mL) 16.50 mL Part IIIb (6 points) Volume of water in graduated cylinder (mL) 20.00 mL Mass of iron nail (g) 3.45 g Volume of water and iron nail (mL) 20.50 mL Part IV (20 points) Type of Aluminum Foil Mass (g) Length (cm) Width (cm)
Premium Volume Coca-Cola Density
Chemical Reactions I. Purpose – The purpose of this lab was to observe different type of chemical reactions to write and balance chemical equations. II. Hypothesis: If you mix two chemicals together‚ then they will change color and/or bubble/fix. III. Procedure - Workstation 1: 1. Light the Bunsen Burner 2. Add 5 – 8 mL of HCL to a test tube that’s in the test tube rack 3. Drop a 2 – cm piece of Mg ribbon into the test tube 4. Record Observations 5. Clean Workstation
Premium Chemical reaction Sodium Sodium chloride