Test Version A SEMESTER I EXAMINATIONS Mid-Term Assessment ECON 30110 Microeconomics II Time Allowed: 50 minutes Instructions for Candidates This exam counts for 30% of the Module Grade. All questions carry equal marks. Note there is NO negative marking Correct answer is worth 1 mark. No answer or more than one answer‚ will both receive a 0 mark. Incorrect answer will receive a 0 mark. Attempt all 20 questions. Shade in the box in the appropriate space with
Premium Supply and demand Economics
Lab: 5 Experiment:13 Pre-Lab The purpose of this experiment is to observe an equilibrium reaction counteracting changes to it’s system all in accordance to Le Chatelier’s principle. An equilibrium reaction can be pushed toward products or reactant based on changes in temperature or concentration. The reversibility of reaction will also be looked at. Pre-Lab questions 1. The concentrations of products and concentrations of reactants remain constant but both reactions
Premium Color Acid Hydrogen
Name: Beatrice Yeo Zi Hui Lab Group: B1 Fume Hood Number: B4 Matriculation Number: A0102491R Email Address: a0102491@nus.edu.sg Date: 1st February 2013 CM1191 Experiment 1: Study of Solubility Equilibrium 1. Abstract The aim of this experiment is to determine the relationship between the solubility of potassium hydrogen tartrate (KHC4H4O6) and temperature. Titrate a known concentration of NaOH against a saturated solution of KHC4H4O6 at different temperatures to obtain the concentrations
Premium Titration Solubility
ANSWER KEY 1. A mixture of 0.10 mol of NO‚ 0.050 mol of H2 and 0.10 mol of H2O is placed in a 1.0L flask and allowed to reach equilibrium as shown below: ˆˆ† 2 NO (g) + 2 H2 (g) ‡ˆˆ N2 (g) + 2 H2O (g) At equilibrium [NO] = 0.062 M. Calculate the equilibrium constant‚ Kc‚ for this reaction. ˆˆ† 2 NO + 2 H2 (g) ‡ˆˆ N2 (g) + 2 H2O (g) Initial D Equilibrium K C = 0.10 M – 0.038 0.062 0.050 M – 0.038 0.012 0 + 0.019 0.019 0.10 M + 0.038 0.138 2 2 [N 2 ][H 2 O]
Premium Chemistry Chemical element Atom
Supply and demand is one of the most fundamental concepts of economics and it constitutes the backbone of a market economy. Demand refers to how much (quantity) of a product or service is desired by buyers while supply represents how much the market can offer. The quantity supplied refers to the amount of a certain product manufacturers are willing to supply given a set price. (Investopedia.com - Your Source For Investing Education‚ 2011). The law of supply and demand defines the effect that the
Premium Supply and demand
Thursday 9/29/11 3:00pm Michaela Howard Partner: Craig Delancy Separation of a Mixture Containing Calcium Carbonate and Naphthalene Objective: Finding a method to successfully separate a mixture of calcium carbonate and naphthalene. Properties to be considered: Calcium Carbonate Naphthalene Solubility in water slightly insoluble Solubility in ethanol insoluble partially Melting point 825 degrees C 80.2 degrees C Boiling point decomposes 218 degrees
Premium Solubility Temperature Laboratory equipment
Inorganic-I Lab Manual http://www.uap-bd.edu Department of Pharmacy‚ University of Asia Pacific‚ Bangladesh Fall 2013 Pharm 112 Inorganic Pharmacy-I Lab Course Teacher: Muhammad Credit 1 Shahdaat Bin Sayeed Website: https://sites.google.com/a/uap-bd.edu/sbspharmacy/ Cell: +8801713459747‚ E: shahdaat.pharm@uap-bd.edu Lab attendant: Md. Abul Halim [01727565062] Name of the Experiment: Qualitative analysis of Inorganic compounds/Drugs Lab 1: Principle of identification
Premium Solubility Zinc Iron
The Effect of Different Concentrations of the Enzyme Catechol Oxidase on the Rate of Benzoquinone Production When Mixed with Pure Catechol Carson Levine November 4th‚ 2013 Abstract Catechol oxidase is an enzyme that speeds up the oxidation reaction when catechol is exposed to oxygen. When the reaction occurs‚ benzoquinone is produced turning the oxidized substance brown. It was hypothesized that the higher the concentration of catechol oxidase‚ the browner the
Premium Chemistry Concentration Brown
The pH is another important factor that influences the enzyme activity‚ as it affects the shape of the enzyme or charge on substrate and ultimately its functionality (Reece et al.‚ 2011; Eed and John‚ 2013). With respect to effect of pH on enzyme activity‚ there was a steady increase in the activity for CFR15-protease‚ i.e. from pH 3.5 to 10.5 and a sudden fall was observed over pH 10.5. The activity was stable in the range of pH 7 to 10.5 and this reveals the alkaline protease nature of the enzyme
Premium Enzyme Chemical reaction Catalysis
Influence of Concentration on the Activity of Amylase Title Influence of Concentration on the Activity of Amylase Abstract Does more or less concentration speed up the reaction rate of amylase in starch? In this experiment diluted solutions of amylase were created and then tested using a starch solution‚ I2KI for reaction times. The answer to the question was proved to be that more concentration of amylase speeds up the reaction time. Introduction The enzyme‚ amylase is found in
Premium Starch Chemical reaction Reaction rate