Quantitative Separation of a Mixture Lab Pre-Lab Questions: 1. Define the following: Physical Change Heterogeneous Mixture Sublimation Filtrate Residue 2. List two physical separation methods. 3. List the formula for determining percent composition by mass. Objectives: 1. to separate a three component mixture and 2. determine the percent composition by mass of each component in the mixture. Materials: Ammonium chloride (NH4Cl)‚ Sodium chloride (NaCl also known as
Premium Analytical chemistry Separation process Mixture
Psychological Research Methods: Exploring Qualitative and Quantitative Research In psychology‚ answers to our questions are not as succinct as in other types of sciences‚ and the findings essentially depend upon the underlying epistemology used. This essay seeks to define and examine the fields of qualitative and quantitative research. It will address the different epistemologies and methodologies of each paradigm‚ and aim to give you a brief overview of the two main research
Premium Qualitative research Quantitative research Scientific method
Title: Quantitative analysis of vitamin C contained in ribena Aim: to determine the amount of Vitamin C in a sample of ribena Materials: * Vitamin C (ascorbic acid‚ C6H8O6) * 4% potassium iodide (KI) * 1M acetic acid (CH3COOH) * N-bromosuccinimide (NBS‚ C4H4BrNO2) Apparatus: * Conical flask * 100 ml volumetric flask * Weighing bottle * Analytical weight balance * Spatula * Funnel Results: Item: | Mass in grams | Mass of weighing bottle with ascorbic
Premium Ascorbic acid Vitamin Vitamin C
Qualitative method is one of three methods of conducting research. According to Creswell (2009). Creswell (2009) additionally shares collecting data to analyze and interpret behavior is significantly different from quantitative method due to purposeful sampling. In this process open-ended data is observed unlike the traditional process in quantitative method. Qualitative method is more of hands on inquiry going directly to the scene of where the problem occurs. Speaking directly to the participants
Premium Scientific method Qualitative research Psychology
In the recent times‚ Quantitative Easing policy of the US Federal Reserve has gained a lot of attention from businesses‚ investors and stock markets the world over. This has generated curiosity in the minds of many as to what it actually is and how it affects the world economy. This article is an attempt to satisfy such curious minds. To understand quantitative easing‚ let us go through the story of recession in the US‚ its post effects‚ and how the economy got back on the path of recovery.
Premium Monetary policy Central bank Money supply
Data Warehousing and Data mining December‚ 9 2013 Data Mining and Data Warehousing Companies and organizations all over the world are blasting on the scene with data mining and data warehousing trying to keep an extreme competitive leg up on the competition. Always trying to improve the competiveness and the improvement of the business process is a key factor in expanding and strategically maintaining a higher standard for the most cost effective means in any
Premium Data mining Data warehouse
statistical sampling procedure purports to answer questions such as: i) Are the supplier’s goods to be accepted or rejected? ii) if accepted‚ what kind of risk do we incur in terms of bad quality? We are talking about mass-scale procurement of raw materials and of mass scale shipment of finished goods‚ so the use of statistical sampling procedure is used in answering the accept/reject question. It refers to the process of randomly inspecting a certain number of items from a lot or batch in order
Premium W. Edwards Deming Statistical process control Quality assurance
POVERTY – AS A QUALITATIVE AND QUANTITATIVE CONCEPT (With reference to the Indian context) What does it really mean to be poor? The First World countries are often referred to as the “industrialized” nations as against the Third World “developing” nations. What does it imply when you describe a nation as “developing”? Can lack of mere material resources imply deprivation? Doesn’t a strong economy in a developed nation lose gravity of ground when the major proportion of its population struggles
Premium Poverty Qualitative research Sociology
districts‚ ranging from rural to city settings‚ it is clear that this belief is not always the case and just because a certain school district pays more per-pupil does not mean that the educational outcomes will necessarily be higher. After taking data from miscellaneous aspects of each district‚ such as the number of state indicators and the performance index scores and comparing them to the instructional and total expenditures per-pupil‚ it is clear that while money does play a large part‚ there
Premium High school The Score Scores
research because they allow the researchers to analyze empirical data needed to interpret the findings and draw conclusions based on the results of the research. According to Portney and Watkins (2009)‚ all studies require a description of subjects and responses that are obtained through measuring central tendency‚ so all studies use descriptive statistics to present an appropriate use of statistical tests and the validity of data interpretation. Although descriptive statistics do not allow general
Premium Normal distribution Standard deviation Mode