LAB 3: QUALITATIVE ANALYSIS Part 2- ANIONS Sameera Feroz Butt Lab Partner: Ram Soni Thursday January 30‚ 2014 Leilani Morales CHEM1131-02 OBJECTIVE The objective of this experiment was to use qualitative analysis to determine the chemical characteristics of four known anions by systemic confirmatory testing. The chemical characteristics observed were to be used to identify an unknown sample. Sulphuric acid was to be added to a carbonate solution and an effervescent reaction would
Premium Chemistry Ion Solubility
Symbol H+ Li+ Na+ K+ Rb+ Cs+ Be2+ Mg2+ Ca2+ Sr2+ Ba2+ Ra2+ Zn2+ Symbol Cu+ Cu2+ Fe2+ Fe3+ Sn2+ Sn4+ Cr2+ Cr3+ Mn2+ Mn3+ Symbols and Charges for Monoatomic Ions Name Symbol Name hydrogen ion H¯ hydride lithium ion F¯ fluoride Note that the sodium ion Cl¯ chloride letters in an ion’s potassium ion Br¯ bromide name before the rubidium ion I¯ iodide -ide ending is 2¯ cesium ion O oxide the stem. For 2¯ beryllium ion S sulfide example‚ the stem
Premium Sulfuric acid Salt Acid
Name: Andre Davis Lab Partner: Ariana camper Title: Lab 21 Qualitative Analysis Date: April 11‚ 2017 Objective: The goal for this lab was to take the unknown solution and determine its ions. Experiment Procedure Part 1 Group 1 10 drops of an unknown solution into a test tube. add four drops of 6M HCl‚ then stir it and place in centrifuge for 30seconds to a minute. Test for completeness of precipitation after testing for precipitation add one drop no more than one drop of 6 M HCl to the supernate
Premium Chemistry Bacteria Water
Cations and Anions Reaction Introduction: This experiment seeks to explore different chemical reactions conducted in the lab. A cation is defined as positively charged ions‚ which are K+ and Pb2+ in this experiment‚ and an anion is termed as negatively charged ions‚ which are CrO4 2- and NO3 2-. The major objective of this lab experiment was to examine the reaction between cations and anions‚ as well as observing‚ and documenting the chemical reactions. We will be demonstrating the reaction between
Premium Chemistry Chemical reaction Titration
The Qualitative Paradigm The design of a research study begins with the selection of a topic and a paradigm. A paradigm is essentially a worldview‚ a whole framework of beliefs‚ values and methods within which research takes place. It is this world view within which researchers work. According to Cresswell (1994) "A qualitative study is defined as an inquiry process of understanding a social or human problem‚ based on building a complex‚ holistic picture‚ formed with words‚ reporting detailed
Premium Qualitative research
IntroductionThis study examined qualitative research on "Pregnancy and protection: Perceptions‚ attitudes and experiences of Australian female adolescents" to determine designs and methods used and to discover emergent themes across study. Most of the study reviewed was described as qualitative or phenomenological by design and included samples comprising of Australian females participants exclusively. Based on analysis of the collective primary findings of the sample research studys‚ three themes
Premium Qualitative research Scientific method Quantitative research
Objective: To successfully separate and identify all three unknown cations‚ found in a mixture and belonging to one of two specific groups (2 from one and 1 from the other). In order to do this we will be using various tests and reactions and observing the effect they had on our solution. Materials: Pasteur pipets Bunsen Burners Stirring rods Excess reagents Hot plates Sample QA unknown 101-5.7 Table of steps and observations: Step/Test |Observation |Inference | |2-1
Premium Blue Metal Color
Introduction According to Craig and Smyth (2002) cited in Boswell and Cannon (2010:Chapter) “Evidence-based practice has emerged from the desire of the majority of healthcare providers (both institutions and individual) to do what is right for the patient and what will result in more good than harm.” The Nursing Council of Hong Kong has devised a Code of Ethics for an accurate representation ofNurses’ ethical responsibilities since 1999. Code of Professional Conduct and Code of Ethics for Nurses
Premium Qualitative research
The Qualitative Report Volume 9 Number 2 June 2004 176-191 http://www.nova.edu/ssss/QR/QR9-2/bender.pdf The Implications of Sex Tourism on Men’s Social‚ Psychological‚ and Physical Health Kimberly Bender South County Center Mental Health Services‚ Alexandria‚ Virginia‚ USA Rich Furman University of Nebraska-Omaha‚ Omaha‚ Nebraska‚ USA This article explores sex tourism and possible concerns for the male sex tourist through a content analysis of sex tourism web sites. This qualitative‚ exploratory
Free Human sexuality Sexual intercourse Human sexual behavior
Carlie Haeffner Qualitative Analysis March 20‚ 2015 The purpose of this lab is to identify unknown ions in a solution by using a type of chemical reaction called precipitate reactions. The key to finding which ions are present in a solution is to form a precipitate which makes the ions “come out” in a reaction (McNeil‚ 2013-2014). Water is used in these experiments to act as a solvent. Since water is a polar molecule‚ the slightly positive and negative charges will sometimes pull apart molecules
Premium Chemistry Water Experiment