Essays on Amount Of Substance

Abstract.

In this laboratory work we’ll gain experience in performing synthesis of Nylon 6,6 from hexamethylene diamine(1,6-hexanedienamine) using its aqueous solution and adipoyl chloride dissolved in cyclohexane. We will find the weight of obtained dried nylon rope and calculate its percent yield.

Procedures

Firstly we poured 1 mL of 5% aqueous solution of hexamethylene diamine(1,6-hexanedienamine) into a test tube. We proceeded with adding 2 drops of 20% sodium hydroxide solution. Then we slowly added 1 mL of 5% solution of adipoyl chloride in cyclohexane by pouring it down the walls of the tube and watched the ...

This experiment involved the measurement of temperature of a sample of water being heated at 30 seconds intervals. One real world application of the experiment is that it can be used for distinguishing between pure and impure water. There are certain terms such as melting point, boiling point, physical change, chemical change, physical property, chemical property, intensive property, extensive property and temperature that are overly important to this experiment hence an understanding of the difference in the meanings of these words is of essence. While melting point is the temperature point at which a solid substance changes to liquid, Boiling point ...

Abstract

The paper focuses on the current application of differentiation and differential equations. Differentiation involves evaluating derivatives, while differential equations are equations involving derivatives. Differentiation is useful in optimization of production; cost minimization and profit maximization. This is a direct and practical application in the discipline of management accounting. Moreover, differential equations are useful in modeling natural phenomena, and solving complex problems in physics, such as electromagnetic waves, RLC circuits, population growth, and chemical reactions problems. In addition, electrical apparatus problems, such as the Ohmic heating problem of a thermistor, are modeled using differential equations.

Current Applications of Differentiation and differential equations

Differentiation is a process of finding derivatives of ...