Chemistry Investigation 14: ------------------------------------------------- To determine the enthalpy change of reaction for: ------------------------------------------------- Na2CO3(aq) + H2O(l) + CO2(g) → 2NaHCO3(aq) Given: S1— Anhydrous sodium carbonate (Na2CO3) S2— Anhydrous sodium hydrogen carbonate (NaHCO3) A1—Aqueous sulfuric acid (H2SO4)‚ 0.500mol dm-3 Apparatus | Uncertainty | Measuring cylinder | ± 0.5 ml | Electronic Balance | ± 0.001 g | Data logger | ±0.2 ℃ |
Premium Sodium carbonate Sodium bicarbonate Temperature
Problem Definition The Glenmuir High School system has played an integral role in the Glenmuir School System. However this expansive library unit has is facing significant challenges as it relates to the borrowing of books by students and the recording of these transactions. The current system in place at the library is a manual recording mechanism. The librarian Miss. Bisasa keeps the records of each student in a recording folder according to their respective classes. Students
Premium Database management system Database Computer
Title: Rate of transpiration I found interesting to know how different environmental factors affect the rate of transpiration. There are different environmental factors‚ such as light intensity‚ humidity‚ wind and temperature that affect the rate of transpiration. Transpiration is a topic 9 in our Biology higher level book. I have read all the information through this chapter and researched some extra information. Based on this information that I had known I decided to take experiment of environmental
Premium Water Humidity Transpiration
Study of Infiltration Rate Name: Jemel Joseph Class: 6 1 S Date: Candidate No. : Statement of Purpose of Investigation The purpose of this study is to measure the infiltration rate of four (4) sites which were visited on our field trip to Cedros. Site 1 being the environment disturbed by man‚ soil compacted by actions of man and animals. Site 2 being the environment waterlogged‚ because of the mangrove present. Site 3 being the environment undisturbed by man‚ with vegetation present
Premium Time Natural environment Ecology
an effort to thoroughly evaluate the statement of problem‚ “the extent to which labels or stigmas negatively impacts on juvenile behavior in High Schools in Malvern”‚ the Internal Assessment will be encompassing three major objectives. These are (1) To determine what motivates students to commit acts of deviance in schools (juveniles). (2) To observe if deviant acts are committed only by persons of a particular‚ gender‚ age category‚ and social class etc. (3) The extent to which the family unit can
Premium Mangrove Coral reef
COMMENTARY COVERSHEET IB Economics commentary number:______2_____ Title of extract: _____ Bank of England Holds Rate at Already Low Level __________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ Source of extract:__ http://www.nytimes.com/2013/09/06/business/global/bank-of-england-holds-rate-at-already-low-level
Premium Monetary policy Inflation
Raw Data: Table 1.1: Raw Data Table Temperature (°C) ±0.5 Initial Mass (grams) ±0.001 Final Mass (grams) ±0.001 Initial Volume (cm³) ±0.5 Final Volume (cm³) ±0.5 Pressure (hPa) ±0.5 24.0 0.000 0.072 0.1 60.4 1008.0 24.0 0.000 0.060 0.1 55.9 1008.0 24.0 0.000 0.053 0.1 54.9 1008.0 24.0 0.000 0.044 0.1 45.4 1008.0 24.0 0.000 0.032 0.1 34.3 1008.0 24.0 0.000 0.025 0.1 23.3 1008.0 Table 1.2: Qualitative Data: Before During After Magnesium
Premium Temperature Pressure Ideal gas law
German Domestic Policy 1871-1890 New empire meant a new constitution. Based on the North German confederation of 1867 Federation of states with power and functional divided between them. One federal government and 25 state governments True democracy? Military monarchy/ Semi-autocracy/ Sham constitutional state Inbuilt conflicts of power Emperor and Parliament Monarch head of civil service‚ military Monarch head of civil service‚ military Prussia 60% of population and 2/3 of its territories
Premium World War II League of Nations World War I
It’s time: Snuff out public smoking Allow cigarettes in private places‚ restaurants included -- just not in common space BY ROBERT POLLOCK NEW YORK DAILY NEWS Sunday‚ September 29‚ 2013‚ 4:20 AM DANIEL BARRY A “No Smoking” sign is posted in the pedestrian plaza in Times Square‚ May 23‚ 2011. Is smoking banned too frequently in public places — or not often enough? As I left last Sunday’s Jets game‚ choking on a supersized cloud of cigarette smoke created by thousands of desperate addicts‚ a
Free Tobacco smoking Smoking Tobacco
Group” Questions and Answers 1. Based on the information provided in the chapter‚ describe the basic features of German accounting at the time Volkswagen adopted IAS. What development factors cause these features? APPUNTI DA FARE IAS compliant In 2001 first consolidated financial statement All mandatory requirements fulfilled IAS 12 and IAS 39 already fulfilled in 2000 financials Clear and fair view of net financial positions‚ asset classification in the book‚ earning indicators‚ etc. All in euro
Premium Balance sheet