101‚40 Higher Water Level (±0.05cm) 21‚5 24‚5 28‚5 Lower Water Level (±0.05cm) 12‚5 11‚0 13‚5 Pressure of Atmosphere/ (±0.005kPa) * The temperature is converted to Kelvin from Celsius for the significance of this lab. ! Qualitative Observation ! I. Bubbles that vary in sizes form from the copper (Cu) coiled magnesium (Mg) travel upwards the
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Research The Chemical name for Baking Soda: Baking soda is sodium bicarbonate. The molecular formula of sodium bicarbonate is NaHCO3. What Baking Powder contains: Baking powder is a raising agent that is commonly used in cake-making. It is made from an alkali- bicarbonate of soda‚ and an acid- cream of tartar‚ plus a filler like corn flour or rice flour which absorbs moisture. Baking powder is a mixture of leavening agents (baking soda‚ acid salts) and inert ingredients (cornstarch‚ calcium
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School-Central Luzon Campus (S.Y. 2014-2015) CHEMISTRY 1 QTR 3 POST-LAB REP 1 Alessandria Maeve M. Ocampo | 9-Samat | January 5‚ 2015 RESULTS AND DISCUSSION Solubility is the ability or property of a certain solute to dissolve in a particular solvent. [1] Miscibility‚ on the other hand‚ is the ability or property of substances to mix in all proportions or thoroughly. This term is usually used in the mixing of liquid substances. [2] In the experiment‚ the students observed the solubility and miscibility of
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Chem Med Case 1 Chem-Med Company 1. What was Chem-Med ’s rate of sales growth in 2003? What is it forecasted to be in 2004‚ 2005‚ and 2006? Sales Growth = (Sales this year - Sales last year)/Sales last year for 2003: ($ 3‚814 - $3‚051) / $3‚051 = + 25% for 2004: ($ 5‚340 - $3‚814) / $3‚814 = + 40% for 2005: ($ 7‚475 - $5‚340) / $5‚340 = + 40% for 2006: ($ 10‚466 - $7‚475) / $7‚475 = + 40% 2. What is the company ’s rate of net income growth in 2004‚2005‚ and 2006? Is projected net income
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March 17‚ 2013 March 17‚ 2013 Name : Ryan annasdass arokiasamy ID : 1206875 Group Members : Chan Pei Qie‚Chong Ven Yen Name : Ryan annasdass arokiasamy ID : 1206875 Group Members : Chan Pei Qie‚Chong Ven Yen experiment 19 kinetics : the study of a chemical reaction experiment 19 kinetics : the study of a chemical reaction Results Part A [I-] / mol dm-3 | [S2O82-] / mol dm-3 | [S2O32-] / mol dm-3 | Time /s | Rate of I2 formation / mol dm-3 s-1 | 0.2 | 0.2 | 0.01 | 1.25 | 0.1600
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enthalpy of combustion‚∆Hc ‚ ofpropan-1-ol‚ C3H7OH C3H7OH(l) + 4 O2(g) → 3CO2(g) + 4H2O(l) [3] d) State how you would expect the value obtained in part (c) to differ if gaseous water‚ rather than liquid water‚ is formed. [1] e) In an experiment 0.92 g of propan-1-ol‚ C3H7OH‚ was burned and the heat given off used to raise the temperature of 250 g of water. The temperature rise was 16 °C. The specific heat capacity of water is 4.2 JK–1 g–1. Calculate a value for the enthalpy of
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Abstract:Conjugation is a natural occurring process that involves the transfer of DNA from one cell into another through a physical connection between the cells. In the following experiment‚ two strains of Escherichia coli bacterial cells (donor F’lac+strs and recipient F-lac-strr) underwent conjugation to produce a transconjugant strain (F’lac+strr). MAC plates and streptomycin were utilized to determine if conjugation had occurred. When plated‚ the donor colonies appeared red and the recipient
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FIRE RESISTANT BALLOON: Materials - 1 matchbox - 1 candle - 1 yellow colored balloon - 1 blue colored balloon - Half a cup of water Procedure: 1. For this experiment‚ the independent variable is whether the balloon is filled with water or not. The dependent variable is what happens to the balloon when it is placed above the lit candle. This is determined by observing the balloon. The constants (control variables) are how much the balloon is inflated and the amount
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Saint Peter’s Prep Science Department AP Chemistry Alexander D. Canale Term: 2013-2014 AP Chemistry Description The AP Chemistry course is designed to be the equivalent of the general chemistry course usually taken during the first college year. For some students‚ this course enables them to undertake‚ in their first year‚ second-year work in the chemistry sequence at their institution or to register in courses in other fields where general chemistry is a prerequisite. For other
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1. Energetics si ygrene neht srucco egnahc yplahtne na fI dna )rH In an exothermic change energy is transferred from the system (chemicals) to the surroundings. The products have less energy than the reactants In an endothermic change‚ energy is transferred from the surroundings to the system (chemicals). The products have more energy than the reactants Enthalpy changes are normally quoted at standard conditions. Standard conditions are : • 1 atm pressure • 298 K (room temperature or 25oC) • Solutions
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