NaCl and SiO2‚ and determine their percentages in the mixture. Since the mixture was not chemically combined‚ they can be separated by physical means. One can use a variety of techniques such as sublimation‚ selective dissolution‚ filtration or evaporation. As a result‚ the mixture contained 9.51% of C10H8‚ 16.2% of NaCl‚ and 60.40% SiO2. Introduction A mixture is a combination of two or more pure substances in which each substance retains its own composition and properties. One easily recognized
Premium Chemistry Evaporation Water
Unit 1 This scheme of work suggests possible teaching and learning activities for each section of the specification. There are far more activities suggested than it would be possible to teach. It is intended that teachers should select activities appropriate to their candidates and the curriculum time available. The first two columns summarise the specification references‚ whilst the Learning Outcomes indicate what most candidates should be able to achieve after the work is completed. The Resources
Premium Education Educational psychology Learning
the country are lower than in most sections. Technical reports gave the following analysis of Gulf waters: “Although the material held in solution by the water of the Gulf of Mexico is not found in combination as salts‚ such as produced on evaporation‚ but rather in the form of ions‚ the basic elements and the acid radicals being separated‚ nevertheless it is customary and convenient to consider them as combined into the form of salts. Among these‚ common salt‚ or sodium chloride‚ makes up the
Premium Sodium chloride Water Seawater
The goal of the Global Polio Eradication Initiative is to ensure that no child will ever again know the crippling effects of polio. Polio is a highly infectious disease caused by a virus poliovirus. It invades the nervous system and can cause total paralysis in a matter of hours. It can strike at any age‚ but affects mainly children under three. Polio is mainly passed through person-to-person (i.e.‚ fecal-oral) contact‚ and infects persons who do not have immunity against the disease. There is no
Premium Water
Investigation 7: How Can The Waste Be Made Useful? February 20‚ 2014 Mian Yang Tuesday 8:30am Group #6 Steven Hengen‚ Joe Wahl‚ Colleen Strom‚ Nicole D Introduction: Chemical interactions can often lead to the production of environmentally unsafe byproducts. If the byproducts have no use‚ they are disposed as waste. Waste disposal companies make profit by collecting and disposing large amounts of these unused byproducts. These companies often concentrate the byproduct solutions so that they
Premium Chemical reaction Solubility
DEVELOPMENT OF LOW COST EVAPORATIVE COOLER UNIT TO SUIT INDUSTRIAL ENVIRONMENT Project Advisor: Prof. R.A. Attalage G.P.T.K. Abeysekara‚ K.H.H.G. Ketanwila‚ K.A.P. Vithana E-mail: thanujakasun@gmail.com‚ketanwila@gmail.com‚koswatta@gmail.com Department of Mechanical Engineering‚ University of Moratuwa‚ Moratuwa‚ Sri Lanka Abstract The purpose of this paper is to demonstrate the adaptability of evaporative cooling technology to Sri Lankan environment. Desiccant cooling technology
Premium HVAC Humidity Relative humidity
related to water evaporation‚ as indicated by TGA where mass change was observed around 100°C (refer to appendix). Other researchers related this peak to glass transition temperature of soluplus. This result was confirmed in previous study‚ performed by Mendiratta C. et al. (2001) (129). The PM between CXB and soluplus (soluplus:CXB 7:3)
Premium Chemistry Temperature Thermodynamics
were investigating why the liquids Ethanol‚ Propanol‚ Water‚ Pentane and Acetone evaporate at different rates. Methanol and Butanol were not liquids investigated by our group‚ but collectively as a class we were able to record averages of rates of evaporation. Solvent Molecular Formula Boiling Point (C°) Polar or Nonpolar Intermolecular Force(s) Lewis Dot Structure Methanol CH4O 64.7 Polar Hydrogen Bonding Dipole-Dipole London Dispersion Ethanol C2H6O 78.37 Polar Hydrogen Bonding Dipole-Dipole London
Premium Water Boiling point Evaporation
Detailed Lesson Plan in Science IV (Soil Erosion) I. Learning Objectives a. Identify the agents of soil erosion. b. Explain how each agents cause erosion. c. Perform related activities enhancing knowledge about soil erosion. d. Enumerate ways and means on how to help prevent soil erosion. II. Subject Matter a. Topic: Soil Erosion b. References: c. Concepts: Soil Erosion and its Effects d. Sciences Processes: Observation‚ Experimenting‚ Analysing e. Materials: 2 large
Premium Evaporation Liquid Water
in heat rate by a mere 1kcal/kwh reflects into direct increase in fuel cost by about Rs.20000 per day for 210MW thermal power plant. Boiler performance‚ the one of the main cause of heat rate deterioration from design value as its efficiency and evaporation ratio reduces with time due to poor combustion‚ heat transfer fouling and poor operation and maintenance. Deterioration of fuel quality and water quality also leads to poor performance of boiler. OBJECTIVE The objective of present study
Premium Coal Chemical engineering Thermal power station