Stoichiometry is important because it explains the relationships of reactants and products in chemical reactions. Without stoichiometry, it would be impossible to determine how much of a certain chemical is needed to yield a result or what molar amounts of each reactant and product are present in a completed reaction.Know More
Stoichiometry means "element measurement" in Greek and is also known as Mass Relations. The principles of stoichiometry are based on the Law of Conversation of Mass, the Law of Multiple Proportions, and the Law of Constant Composition. In order to satisfy all three laws, every chemical reaction and corresponding equation needs to have a set molar ratio for its reactants and products that explains how it proceeds to completion every time. Once determined, the molar ratio for an equation does not change as long as the equation itself is untouched and no other chemicals are added to the reaction.
Because the calculations in stoichiometry are based on molar ratios, the molar masses of the products can be used to determine theoretical yields and limiting reagents. Stoichiometry can also help determine the concentrations of solutions that were used, provided that enough variables are accounted for. A proper stoichiometric molar ratio functions forwards and backwards so that calculating values for the reactants can be performed if the corresponding values for the products are known.Learn more about Chemistry
Cooking is related to chemistry because the preparation of many types of foods involves chemical reactions. When cooks understand how chemical processes work during cooking, they are able to make adjustments and produce better foods.Full Answer >
Methane is utilized as fuel and in chemical reactions to produce commercially used chemicals such as carbon tetrachloride, carbon black and as a source of hydrogen. Methane reacts at high temperatures with steam to yield the hydrogen used in the manufacturing of explosives and ammonia-based fertilizers.Full Answer >
Energy can play many different roles in chemical reactions, and it can be a product of a chemical reaction, a necessary component for a chemical reaction, or energy can have little part in a chemical reaction. Chemical reactions that require additional energy are called endothermic reactions, while those that produce energy are called exothermic reactions.Full Answer >
An Arrhenius plot is used to assess the impact temperature has on chemical reactions. It plots the inverse temperature against kinetic constants logarithm. An Arrhenius plot yields a straight line of a solitary-rate limited, thermally activated processes, from which the pre-exponential factor and the activation energy are determined.Full Answer >