Food Web Singleton 1 Food Web Derrick Singleton BIO/101 6/25/12 Mark Kato Food Web Singleton 2 While our ecosystem does exist‚ without dramatic changes‚ we can speak of the objects without contradicting
Premium Natural environment Louisiana Ecosystem
properties of pure chemical substances by subjecting them to various environmental extremes. Procedure: Filled each test tube with substances provided and subjected them to various conditions. These conditions included‚ heat‚ cold water‚ hot water‚ acid and basic additions and tested on litmus paper. The reactions were observed and documented at each step. Data tables: Substance name Color Odor Effect of heat Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH Mg Small silver‚ metallic
Premium Temperature Chemical reaction Chemical substance
To study the acidity of different tea samples A PROJECT REPORT SUBMITTED IN PARTIAL FULFILLMENT OF THE HIGHER SECONDARY SECOND YEAR COURSE Estd:1943 Submitted by: Surajit Barman Roll no:833 DEPARTMENT OF CHEMISTRY B.Borooah College‚Guwahati CONTENT
Premium PH Acid Base
Abstract By using acid-base titration‚ we determined the suitability of phenolphthalein and methyl red as acid base indicators. We found that the equivalence point of the titration of hydrochloric acid with sodium hydroxide was not within the ph range of phenolphthalein’s color range. The titration of acetic acid with sodium hydroxide resulted in an equivalence point out of the range of methyl red. And the titration of ammonia with hydrochloric acid had an equivalence point that was also out of
Premium PH indicator Titration PH
Lab 1: Observation of Chemical Changes Name: Tyler Lee Lab Partners: none Date of Experiment: Feb 26 2015 Location: My House Course Number: CHE111 Abstract: The point of this lab was to test and observe chemical changes when mixing chemicals together and also through heating chemicals. Experiment and Observations: The experiment performed in the first part of this lab was to mix various chemical solutions together and then observe and record the chemical changes‚ also if a chemical
Premium Chemistry Chemical reaction
New Military Base There are many types of military bases; some have piers for ships and submarines‚ others have air strips for planes and others provide training for military members. A new military installation can provide employment opportunities for community members. A military base can increase the revenue generated by local businesses‚ create job opportunities for locals and even add revenue to our local government. A military base will be a good addition to the community. A new
Premium Military Navy United States
The identification of acids and bases using a natural indicator Purpose: The purpose of this lab practice is to identify the pH of certain solutions and if they are acids or bases. Introduction: In chemistry‚ pH is a measure of the activity of the (solvated) hydrogen ion. p[H]‚ which measures the hydrogen ion concentration‚ is closely related to‚ and is often written as‚ pH. Depending on the pH solutions will be acids or bases. An acid is a chemical compound that dissociates in solution‚ releasing
Premium PH Acid PH indicator
negative. The base must be 10. The exponent must show the number of decimal places that the decimal needs to be moved to change the number to standard notation. Trailing zeros are significant . Leading zeros are not significant. The decimal place in the beginning goes after the first non zero digit. Example: Convert 60‚300‚000 to scientific notation Coefficient is greater than one. Decimal place goes after the first non zero number. Note that 6.03 is greater than one. The base must be 10.
Premium Decimal Accuracy and precision Units of measurement
Exercise 10: Acid/Base Balance Worksheet Assignment Due: Week 2 Student instructions: Follow the step-by-step instructions for this exercise found in your text and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Please make sure that your answers are typed in RED. Respiratory Acidosis and Alkalosis Activity 1: Normal Breathing 1. At 20 seconds‚ pH = 7.38 At 40 seconds‚ pH = 7.38 At 60 seconds‚ pH = 7
Premium
Full Lab Report Experiment #2: Acid-Base Titration Lab Description: Acid-Base Titration Introduction In this lab exercise we will evaluate the effectiveness of several indicators for the determination of the point of completion of a specific acid-base neutralization reaction. We will also determine the unknown concentration of the strong base NaOH by its reaction with a known amount of the weak acid‚ potassium acid phtalate (HKC8H4O4‚ abbreviated KHP). This will be accomplished using the titration
Premium PH indicator Titration PH