Identification of Metallic Ions Essay

When the tip of the rod touched the pH paper, the color of the pH paper became blue.

After all materials were gathered, we then had to do five different tests to determine what the powder material does. The first test was to see what the powder materials do in water. We had to add a scoop of each of the common powders to an

This gas may cause temporary blindness and inflammation of the nose and throat of the victim. A gas mask would easily offer good protection against this gas. This chemical and any chemical with bromide were quite popular during World War I since it was easily brewed.

Prior to conducting this lab, it was known that flame colors are produced from the electronic transitions in the metallic ions present in the salt compounds. When heated, the electrons absorb energy, jumping from ground states of lower energy to higher-energy, excited states. The electrons must return to their lower energy levels as energy is emitted in specific amounts in the form of light. Each energy emission correlates to a certain color, and since the transitions of metallic ions vary from each other, each ion produces a unique pattern of spectral lines, therefore creating an equally unique flame color.

This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor.

Relevant Websites to Help You with This Lab – Be sure to review these Websites before and during the completion of this Lab.

Eleven mystery test tubes labeled from K-1 to K-11 contained: 6M H2SO4, 6M NH3, 6M HCl, 6M NaOH, 1M NaCl, 1M Fe(NO3)3, 1M NiSO4, 1M AgNO3, 1M KSCN, 1M Ba(NO3)2, 1M Cu(NO3)2 respectively. The contents of the test tubes were determined by chemical experiments. Solution K-1 contained NiSO4 because when solution K-9, ammonia which was identified by its pungent odor, was added, an inky dark blue color was made. Iron (Fe (NO3)3) was determined to be in test tube K-2. KSCN was found in test tube K-11 since Fe (NO3)3 and KSCN makes a bloody color when mixed together. Flame tests were conducted in which K-8

When your lab report is complete, submit this document to your instructor in your assignment box.

This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor.

cause skin irritation, allergy, and has been linked to organ system toxicity. There are concerns that Propylene Glycol can cause brain, liver, and kidney abnormalities.

Lab Manual    Introductory Biology (Version 1.4)    © 2010 eScience Labs, LLC  All rights reserved  www.esciencelabs.com • 888.375.5487    2  Table of Contents:    Introduction:          Lab 1:   The Scientific Method  Lab 2:   Writing a Lab Report  Lab 3:  Data Measurement  Lab 4:  Introduction to the Microscope    Biological Processes:            Lab 5:   The Chemistry of Life 

• Eyes: Eyes may be red and irritated by the smoke, and there may be burns on the corneas in the eyes.

1. Lab reports are to be computer-generated and double-spaced. All sections of the report must

The mucosa of the nose is very important for its proper function as a barrier to foreign matters and drug absorption. A nasal drug delivery system must undergo the evaluation of its irritation to the nasal mucosa. In this study, histological study of the nasal mucosa was performed to claim the potential toxic influences or the expected drug/excipient irritations.

Sub supporting point 2 :It also makes the eyes sting and water because around you is filled with toxic gas and hazardous to health .