An investigation in to the rate of reaction Plan: I am going to investigate the rate of reaction. The reaction I will be using is: Calcium Carbonate + Hydrochloric acid ---- Calcium Chloride + water + carbon dioxide. CaCO3 + 2HCl ---- CaCl +H2O + CO2 Measurements and Variables: The variables I have chosen to change is strength of the hydrochloric acid which will be 1 mole‚ 0.7 mole‚ 0.5 mole‚ 0.3 mole and 0.1 mole some variable I will not be using are temperature‚ mass‚ density. The measurements
Premium Chemical reaction Reaction rate Chemistry
Enzyme Controlled Reactions 1) Describe the relationship between substrate concentration and the initial reaction rate of an enzyme-catalyzed reaction. Is this a linear relationship? What happens to the initial reaction rate as substrate concentration increases? A) The relationship between the substrate concentration and the initial reaction of an enzyme-catalyzed reaction is very productive‚ but is dramatically affected by the pH level of the given solution. The most productive pH level is
Premium Enzyme PH
overtake a truck. If this requires 15 s‚ what is the (a) acceleration and (b) distance traveled by the car? 2. Albert is riding his scooter at a velocity of 80 km/h when he sees an old woman crossing the road 45 m away. He immediately steps hard on the brakes to get the maximum acceleration of 7.5 m/square second. how far will he go before stopping? Will he hit the old woman? 3. the time a male bungee jumper if freely falling is 1.5 seconds (a) What is the velocity of the jumper at the end
Premium Force Velocity Acceleration
should increase the reaction rate. This will result in the particles colliding more frequently and increasing the speed of the reaction. Also when they have more energy there will be more chance of the collisions being successful because the activation energy will be attainable. Hypothesis: In a reaction between calcium carbonate and hydrochloric acid‚ the products calcium chloride‚ carbon dioxide and water are formed. I predict that the higher temperature of HCl acid‚ the higher the reaction rate
Free Chemical reaction Chlorine Carbon dioxide
Introduction: This experiment was used to examine the hypothesis that: Osmosis is dependent on the concentrations of the substances involved. Diffusion is the passage of solute molecules from an area of high concentration to an area of low concentration (Campbell & Reece‚ 2005). An example is ammonia diffusing throughout a room. A solute is one of two components in a chemical solution. The solute is the substance dissolved in the solution. The solvent‚ the other component‚ is any liquid in
Premium Osmosis Diffusion Concentration
What causes High Crime Rate? Westwood College (Criminology) Week 2 Assignment What causes High Crime Rate? Crime rate is where the Federal Burro of Investigations use the number of crimes reported to the burro to measure the crime rate of certain locations as well as the type of crimes. When researching two cities there are two different ways to research the crime there is qualitative and quantitative; these two sound similar but there are some differences. Qualitative has details with descriptions
Premium Crime Criminology Qualitative research
“Decathlon China will be able to increase its sales above industry growth rate” Decathlon produces and sells a wide range of sport products and the company is the largest sporting goods retailer in Europe. Also‚ the company has grown into a large multinational corporation. In the past‚ Decathlon relied on traditional media to promote its brand. In contrast to the competition‚ Decathlon has fewer resources to TV advertising campaigns and has not used high profile celebrities as spokespeople. The
Premium Advertising Social media Bulletin board system
Kinetics Factors Affecting Reaction Rate OVERVIEW Chemical reactions occur at different rates. In this experiment you will consider some of the key factors that influence the rate of a reaction: nature of reactants - particle size temperature concentration catalysts According to the collision theory‚ the rate of a reaction depends on the frequency of collisions between reacting particles. The more frequent the collisions‚ the faster the rate of the reaction. However‚ in order for the collisions
Premium Chemical reaction Zinc Hydrochloric acid
Muhammad of Ghur (died 1206)‚ also called Muizuddin Muhammad ibn Sam or Shihabuddin Muhammad Ghuri‚ Muslim conqueror of northern India. In 1173 Muhammad rose to control the Turkish Ghurid Empire‚ centered in what is now west central Afghanistan. Finding his ambitions to control Central Asia blocked by other Turkish-influenced states‚ he embarked on yearly raids into northern India‚ which was then largely Hindu. Between 1175 and 1186 he overran the regions of
Premium Afghanistan Genghis Khan Mughal Empire
countries‚ an increase in crime has been blamed on violent images on television and in computer and video games. To what extent do you agree or disagree with this opinion? Nowadays‚ society exquisitely depends on science and technology. The products of technology are very familiar with us. The most popular products are televisions and computers. They seem to be a part of our life. They have two sides like everything. Today‚ I give my view about both side of them. My essay mentions an increase in crime
Premium Good and evil Mind Vacuum tube