Chemistry Essays

Introduction – When sodium bicarbonate and citric acid mix in water they dissolve, the sodium bicarbonate reacts with the citric acid to form sodium citrate and carbon dioxide. The carbon dioxide then bubbles out as a gas, which makes the bath bomb break up, in this experiment 3 tests will …

Determining the mass of a pure compound is a method of a gravimetric analysis. One of the gravimetric analyses is the precipitation; it is a method of separating the analyte from the unknown sample as a precipitate where it will be filtered and converted into a known composition that can …

Introduction Santol or cotton fruit (Sandoricum koetjape) is a tropical fruit grown in Southeast Asia (fruitinfo.com, Retrieved July, 2014). The Santol fruit tissue is mostly sub-acid or sour in nature. When the fruit is unripe, this tissue is even more sour. The Filipinos like Santol even if it tastes sour …

Offshore and subsea projects are complex. Risk can occur at anytime, anywhere – from politics to public relations to procurement and construction. External market factors can cause capital expenditures and operating costs to escalate without warning. These threats raise questions: • Is the project timeline realistic and feasible to predict …

Magnesium ribbon was reacted with Hydrochloric acid in three different experiments to determine the charge on a metal ion. After running multiple tests in the three different procedures, the Crystallization method proved to be the best method for determining the charge of the metal ion by using mole to mole …

1. Pour a half of a cup (110g) of baking soda into a mixing bowl. Baking soda has a natural cleansing ability and can even be found in some commercial toothpastes. It’s non-toxic and will help polish your teeth. Some recipes call for table salt, in which case you should mix …

A nasogastric tube is inserted to a patient for medical administration, feeding and for drainage of gastric content, it is very commonly be used in the ward, especially for critically ill patients in acute care ward and the Intensive Care Unit (ICU). And according to our previous knowledge, we have …

Calcium or Ca is found in many things. The body needs calcium to maintain strong bones and to carry out many important functions. Almost all calcium is stored in bones and teeth, where it supports their structure and hardness. The body also needs calcium for muscles to move and for …

Purpose: This experiment allowed me to learn different separation techniques for various substances based on their specific chemical properties. Procedure: I began this experiment by using a magnet to pick up and collect the iron filings out of the mixture. Then the sand was separated by placing the mixture into …

Abstract This experiment is to study the effect of temperature on the rate of reaction between potassium permanganate with oxalic acid. We used 2cm3 of 0.02M potassium permanganate and 4cm3 of 1M sulphuric acid into a test tube. In another test tube, we placed 2cm3 of oxalic acid. We placed …