Introduction This module is all about Stoichiometry, composition and reaction. I chose this topic not because I am having a really hard time understanding it, but because I want to have a deeper understanding of the lesson. Before actually doing this, I watched some videos on YouTube in order to look for some techniques I can actually apply in doing some written works and execute as an example for this module. In this module, I will focus more on the different techniques on how to convert unit to unit that I learned from different sources and some I self-learned, and of course some from the discussion done by our teacher. As for the conversion process, I will try to focus more on Dimensional Analysis than in the Mole Method, though I will …show more content…
This applies the same to my example above, same number of particles, different, elements, therefor, different masses. Another concept we need to master is Balancing. Balancing chemical equations is quite tricky, that is the process wherein you put coefficients, which signifies how many element is put up in that particular equation, in front of the element/coefficient. It is pretty tricky and we need to master it. Here is an example of an unbalanced chemical equation, H2 + O2 = H2O As you can see, there are 2 Hydrogens on the reactants side and 2 Oxygens on the same side, but on the products side, we can only see 2 Hydrogens and 1 Oxygen. Based from the Law of Conservation of Mass, “Mass is neither created nor destroyed,” and therefore, we need to balance it so all the elements will be used up. We can use different methods in balancing chemical equations, one is the Algebraic Method. The algebraic method requires assigning of variables to each element/compound present. For example, H2 + O2 = H2O a + b = c Next, is listing all the elements present in the equation, H
What if, the universe’s most abundant element, hydrogen, was the fuel for our cars? Using hydrogen energy, or hydrogen fuel, would be great for solving global warming and reducing the amount of greenhouse gas emission produced because it is a really clean energy source, there is a magnificent amount of hydrogen energy, and it’s more efficient than most energy sources. There are some disadvantages for hydrogen energy though. Hydrogen energy is expensive, transporting hydrogen is challenging, and there aren’t many hydrogen fuel stations around for refueling. Hydrogen is the simplest element in the universe, with one proton and one electron.
Reaction Action Assignment 1. How does the leavening action of baking soda work? 2. a) When baking soda is used in baking recipes, the ingredients list will include an acidic ingredient so that the baking soda will react. Because the baking soda is a base, when it reacts with an acid, it will produce bubbles of carbon dioxide.
n AP Chemistry, test scores weigh heavily on our grade in the class so they are not taken lightly. It just so happened that the Tennessee HOSA (Future Health Professionals) Leadership Conference coincided with the final days of lecture and review for the test that was to take place the day after HOSA members arrive home. My teacher specifically told me and a classmate, who was also a HOSA competitor, that we were not expected to take the test on Monday but rather one day after school. Since she had given us extra time, we both focused on studying for our respective competitions rather than the AP Chemistry test. This, however, turned out to be a horrible mistake.
In the world where humans reside in today, a vast diversity of individuals strive towards their ultimate goals; one may endeavor to become a prestigious actor or perhaps a contented engineer. These varied, ultimate goals are “Personal Legends”; this phrase appeared in Paulo Coelho’s best-selling novel, The Alchemist, and he concretely defines the peculiar term “Personal Legend”. Throughout this novel, Santiago, a youthful shepherd, strived to follow his Personal Legend, finding treasure at the Egyptian Pyramids; he encountered numerous hindrances as well as meeting various individuals that guided him closer to the inevitable goal. Near the beginning of the book, Coelho elaborated, utilizing the technique of dialogue, that “[A Personal Legend
Introduction: The purpose of this experiment is to demonstrate the different types of chemical reactions, those including Copper. There are different types of chemical reactions. A double displacement reaction is a chemical process involving the exchange of bonds between two reacting chemical species. A a decomposition reaction is the separation of a chemical compound into elements or simpler compounds and the single-displacement reaction is a type of
Objective The foremost purpose of this laboratory experiment is to comprehend notion of moles and Avogadro’s number; and also to grasp the idea of converting among mass, moles, and number of atoms in a sample (Hammerschlag 1). Importance Pace University Professor Carroll Zahn allocated a novel assignment to his introductory computer class, in which the results of this assignment greatly astounded both the professor and his class. The subsequent description that was stimulated by the unanticipated results of this miraculous event is the inspiration for the following case study. Perplexing his class, Professor Zahn told them to calculate the cost of a single aluminum atom in a roll of aluminum foil that he had recently purchased.
Chemistry Essay: Impact of the use of chemical reactions on the efficiency of a car In this essay I will explore two chemical reactions and how they impact the efficiency of a car. I have chosen to talk about airbags, and nitrous oxide. I will explain how they work, how they enhance a car and talk about how the implication of science has solved everyday problems of a car. Lastly I will talk about what affect these chemical reactions have on the environment.
(0.01 moles of NaOH) x (1 mole Ca(OH)2/ 2 moles of NaOH) = 0.005 moles of Ca(OH)2 Tube 1: (0.0020 moles of CaCl2) x (1 mole Ca(OH)2/ 1 mole of CaCl2) = 0.002 moles of Ca(OH)2 (0.002 moles of Ca(OH)2) x (74.08 grams/mole) = 0.1 grams = theoretical yield Tube 2: (0.0035 moles of CaCl2) x (1 mole Ca(OH)2/ 1 mole of CaCl2) = 0.004 moles of Ca(OH)2 (0.004 moles of Ca(OH)2) x (74.08 grams/mole) = 0.3 grams= theoretical yield Tube 3 (0.0050 moles of CaCl2) x (1 mole Ca(OH)2/ 1 mole of CaCl2) = 0.005 moles of Ca(OH)2 (0.005 moles of Ca(OH)2) x (74.08 grams/mole) = 0.4 grams =theoretical yield Tube
(23392U + 10n) – (13754Xe + 9438Sr + 3 10n) ∆m = (233.039635207u + 1.008701u) – (136.911562125u + 93.915361312u + 3 x 1.008701u) ∆m = 0.19530977u ∆m = mass defect (u) mp = mass of the products (u) mr = mass of the reactants
INTRODUCTION. Newton developed this law of motion has significant mathematical and physical elucidation that are needed to understand the motion of objects in our universe. Newton introduced the three laws in his book Philosophiae naturalis principia mathematica (Mathematical Principles of Natural Philosophy), which is generally referred to as the Principia. He also introduced his theory of universal gravitation, thus laying down the entire foundation of classical mechanics in one volume in 1687.
Student’s Name Professor’s Name Subject DD Month YYYY Homework: Question - Answer (55) The combustion reaction equations for: Cellulose: C6H10O5 + x(O2+3.76N2) y (CO2) + z (H2O) + k(N2)
We have heard the term mixture in our Chemistry books or in the kitchen, But what the mixture exactly is? A mixture is an outcome of combining two or more substances without any fixed ratio and such approach that there is no chemical reaction occurs between them. The mixture is classified into two categories, one of them is the Homogeneous mixture, and another is the heterogeneous mixture. On mixing up the component substances retain their own identities and properties.
I walked into Organic Chemistry, laughing with my friend about an article we had read on how to levitate a frog with a magnet. We were hysterical just imagining what must have triggered an internationally respected scientist to turn the other and say “Dude, I bet we can’t levitate this frog with a magnet!” As team leader for our balancing equations group, “The Balancenators”, I asked the team to take our seats at the lab tables and remembered that we had a substitute from Ohlone College coming in to give us a lecture. He was a tiny, British guy with rolled up sleeves, and a strange obsession with stroking his beard, almost like a younger, shorter Gandalf.
Experiment 5: Study of Solubility Equilibrium Aim To determine the solubility product constant Ksp of a sparingly soluble salt potassium hydrogen tartrate (KHC4H4O6) in water To calculate the change in enthalpy (ΔH° reaction) and entropy (ΔS° reaction) of the reaction Results and Discussion The dissociation reaction of potassium hydrogen tartrate (KHC4H4O6) in water can be written as: KHC4H4O6 (aq) ⇆ K+ (aq) HC4H4O6- (aq) Determination of Ksp at 284 K The expression of its solubility product constant Ksp is Ksp =