decreases. The solution is clear and colourless ‚ with no traces of the Mg strip. Data Processing: PV = nRT P; Pressure - Pa V; Volume - m3 n; Number of moles - moles R; Gas Constant - JK-1mol-1 T; Temperature - K Gas Constant (R) is what we are trying to calculate Known Gas Constant: 8.31 JK-1mol-1 Sample Calculations: Temperature needs to be converted from degree Celsius in Kelvin Temperature in Kelvin: °C + 273 = … K e.g. 24.0 + 273 = 297.0 Kelvin From the Mass we
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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
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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
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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
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Research Question: How does varying distance of light away from papaya leaf discs at 10cm‚ 15cm‚ 20cm‚ and 25cm affect time taken in seconds for all five discs to rise and float on the surface of the water? Hypothesis: “As the distance of light away from papaya leaf discs increases‚ the average time taken for the discs to resurface and float o the surface of the water increases.” Data Collection & Processing Raw Data Table: Time taken (minutes)
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An experiment investigating the effects of interference on speed estimates during the Stroop task Nicharee Thamsirisup (Nid) IB Psychology Standard Level Abstract: This experiment is to investigate the effect of color interference in speed estimates of the Stroop task which was first researched by John Ridley Stroop in 1935. This can be investigated by seeing the time difference between the task of identifying colors when color words are printed in the same color as their semantic meaning
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Individual Assignment VALUATION & FINANCIAL MODELLING Hà Hải Định (SB00961) Contents Executive Summary 3 Part 1: Overview of the Japanese Government Bond Market 3 Process of issuance of Government Bonds 4 How Government Bonds are traded in the market 4 Some statistic data about the Government Bond market during the past 5-10 years 5 Part 2: Compare with the Vietnamese Government Bond market 1 - The differences between the two markets 1 - Advantages and Disadvantages of Vietnamese Gov Bond
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Data Collection: Mass of FA1 | Mass of empty weighing bottle and FA1 (±0.001) /g | 5.821 | Mass of empty weighing bottle (±0.001) /g | 4.321 | Mass of FA1 (±0.002) /g | 1.500 | Volume of FA3 prepared = 250.00 ± 0.12 cm3 Volume of FA3 used for titration = 20.00 ± 0.06 cm3 Titration of FA3 against FA2 | | Run 1 | Run 2 | Run 3 | Final volume of FA2 (± 0.05) /cm3 | 25.30 | 25.40 | 25.45 | Initial volume of FA2 (± 0.05) /cm3 | 0.00 | 0.00 | 0.00 | Volume of FA2 used (± 0.10) /cm3
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For this experiment petri-dish A is fully exposed to the light source while petri-dish B is partially exposed to the light. Independent Variable: We have chosen our independent variable to be the amount of light exposed to the cress seeds. Our first petri-dish was allowed to be fully exposed to the light surrounding it‚ while the second was fully wrapped in black paper excluding a 0.5cm slit directed towards the sun. Dependent Variable: Our dependent variable is the reaction/actions to
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El Salvador’s Civil war: 1979-1992 * The massacre of el Mozote 1981 * A town called el Mozote near the border of El Salvador and Honduras * The massacre was caused by the government of El Salvador * During the civil war‚ the rebels were known as the guerillas * Supported the left-wing * Guerilla- a member of an irregular usually military or paramilitary unit operating in small bands in occupied territory to harass and undermine the enemy‚ as
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