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Base De Madeira

The advent of internet and ecommerce revolutionized many a things, one of which was the way traditional trade was done. Ecommerce reshaped trade for every player in the supply chain. Businesses need to have an established online presence in order to maintain a competitive edge in terms of innovation and keeping up with evolving customer demands. Lifestyles of customers have evolved quite rapidly because of which businesses have to adapt to these changes and learn new ways to reach their customers. Customers have realized that they can work, study, play, and even shop online. Ecommerce is what helps businesses to effectively sell their products online. Purpose The objective of this project stems from the above premise. We are proposing an…

Acid- Base Titration Lab

1. When the end point is reached in an acid-base titration, the relationship between the concentrations of OH- and H3O+ are that they are equal. This doesn’t mean that the pH will be neutral, but the concentrations of both will be the same in a titration. 2. The pH of the end point is determined by what kind of indicator is used to indicate when the end point I reached. In this experiment, phenolphthalein was used. It shows a color change in the presence of a base, which means that our solution had to be slightly basic for it to turn a pink-purple color. So, the type of indicator used for the experiment will overall determine the pH of the…

Quantitative determination of acetylsalicyclic acid

Weigh accurately a definite number of aspirin tablets (two or three tablets weighing no more than 1.5 g) into a 250 cm3 conical flask. Initiate the hydrolysis of the aspirin by adding 25 cm3 of 1.0 M sodium hydroxide by pipette, diluting with approximately the same volume of distilled water. Warm the flask over a tripod and gauze for ten minutes to complete the hydrolysis. Cool the reaction mixture and transfer with washings to a 250 cm3 volumetric flask, dilute to the mark with distilled water and then ensure that the contents of the flask are well mixed by repeated shakings. c.Titrate 25 cm3 portions of the diluted reaction mixture with the standard 0.050 M sulphuric acid provided, using phenol…

Pros and Cons of Mobile Phones

Mobile phones have become a hot commodity and have turned into a social norm. The introduction of smart phones has affected the way in which mobile phones are used and by whom. Due to mobile media, we are now able to communicate for free, watch movies on our phones, listen to music on the go and be currently updated with the latest news – all this information at the edge of our fingertips. However, this advancement in social media and technology has affected our values and culture, some good and some bad. Researchers and scientists have coined the term Mobilology, which is the study of mobile phones and how they affect human behavior, culture, education and economics. Mobile phones have…

Mobile phone

Mobile phone is a good technology which is not lacking from our lives. This report will discuss the advantages and disadvantages of using mobile phones. Today, mobile phone has become popular to everybody since it is very convenient. The most advantage of having a mobile phone is you can communicate to your family and your friends no matter what where you are. For instance, you can contact easily to your friends by calling or sending messages everywhere without electricity. It is maybe the main reason why almost all people today choose to own a mobile phone. From the customer’s point of view, it is obvious that mobile phones assist you in business a lot, such as, make schedule of working,…

Acid-base Indicator from Eggplant

A.Introduction: This chapter includes the prevailing problem situation based on observations. Also, the objectives, scope and limitation, significance of the study, definition of terms and conceptual framework are included and also the Background of the study. As we all know Eggplant (Solanum melongena) is a species of nightshade commonly known in British English as aubergine and also known as melongene, garden egg, or guinea squash. Eggplant is widely used in cooking, most notably as an important ingredient in dishes such as eggplant mix with egg. Eggplants made their first appearance in Europe in the 14th century, and Thomas Jefferson first introduced them to 18th century America. Florida, California, and Georgia are leaders in U.S. eggplant production. While eggplants don’t have…

Testing the Ph of Common Household Substances Lab

Background Information: The pH scale is used to determine the acidity or basicity level of liquid solutions. If a solution scores a pH level of 1-6 it is an acidic solution, 1 being the most acidic and 6 being the least acidic. If a solution rates a pH level of 7 it is a neutral solution, meaning it is neither an acidic nor a basic solution. Lastly, if a solution is 8-14 on the pH scale it is a basic solution, 8 being the least basic and 14 being the most basic. The products that are used on a daily basis in your house can also be acidic solutions, basic solutions, or even neutral solutions. Hypothesis: Food products are likely…

Separation and Purification of Organic Compounds

Abstract The distillation process was successfully done because of the separation of water from the acetone. When the distillate was lighted with the matchstick it produced flame which indicates that there was more presence of acetone than water. When the sodium nitroprusside, sodium hydroxide and glacial acetic acid was added to the distillate, it turned to violet. This means that there is the presence of ketone. Introduction Distillation is the process heating a liquid until it boils, then condensing and collecting the resultant hot vapors. Distillation is used to purify a compound by separating it from a non-volatile or less-volatile material and it is a commonly used method for purifying and separating mixtures of liquids into their individual components. As…

Determination of Ka for a weak Acdi

Introduction In the experiment preformed the objective is to titrate a weak acid with a strong base. In a titration of a weak acid with a strong base the titrant is the strong base and the analyte is a weak acid. The reaction that will occur is the direct transfer of protons from the weak acid to the hydroxide ion. The data gathered will be represented on the titration curve, a graph of the volume of titrant being the strong base plotted against the pH .The pH is an indicator of an acids strength. The titration curve can be used to determine the pKa. By reading the graph the equivalence point can be found; which is the point where equal…