Essay Explain Which Steps In The Procedure To Reduce The Final Yield

First students obtained 8 graduated cylinders and labeled them. Each one contained a different ratio of vinegar and water. These graduated cylinders with the liquid were weighed and recorded.Then, students obtained an Alka-Seltzer tablet and recorded its mass. Then one alka-seltzer tablet was dropped into each of the graduated cylinders. Students had to

Procedure: Measure the volume, mass, length and temperature of a variety of items. Create dilution of sugar water.

alcohol (2-methyl-2-butanol, MW _ 88.2, d _ 0.805 g/mL) and 25 mL of concentrated hydrochloric acid (d _ 1.18 g/mL). Do not stopper the funnel. Gently swirl the mixture in the separatory funnel for about 1 minute. After this period of swirling, stopper the separatory funnel and carefully invert it. Without shaking the separatory funnel, immediately open

Purpose: The purpose of this experiment is to observe a variety of chemical reactions and to identify patterns in the conversion of reactants into products.

When filling up the burette it is important that a funnel is used, however as the solution reaches the 0 mark it is ideal that the funnel be removed and a pipette used instead to reach the 0 mark, this is to achieve greater precision. During the experiment, it is important to swirl the flask continuously with one hand

To begin(control data and experiment data), fill the solution container with designated amount of live yeast and 10 mL of hydrogen peroxide. Quickly after mixing solutions together, cap the container with the cork and straw and cover the open end of the straw. Have one member of the lab begin the timer. Keep the open end of the straw covered to submerge the solution container under water in the tub and let the open end of the straw be placed inside the open end of the graduated

3. What happens to the proof-rating of the brandy, as the distillation process continues? Why?

Compare the problem, solution, and technique in Buddhism with those of another eastern religion of your choice.

A 10 mL round-bottom flask was weighed both before and after approximately 1.5 mL of the given alcohol, 4-methyl-2-pentanol, was added. 3 mL of glacial acetic acid, one boiling chip, and 2-3 drops of concentrated sulfuric acid were added to the flask in that order. The reflux apparatus was assembled, the

Selective reduction is normally a two-day medical process in which one or more fetuses are aborted while leaving other fetuses to develop. It is a routine procedure for In Vitro Fertilization (IVP). This process is a medical procedure whereby an egg is fertilized outside the body. About 10 percent of IVF procedures result in five or more fetuses. 20 percent are quadruplets, 60 percent triplets, and about 10 to 15 percent are twins. Most physicians who provide IVF will counsel 85 percent of their patients to accept a selective reduction that will reduce the pregnancy to twins. There are many difficult ethical questions raised when the method of IVP is used and can be considered moral and immoral. These moral questions also depend on the

The results that were revealed were thought to be accurate and reliable as many factors were controlled to enable the best quality. The results that a constant rise in the combustion occurred as each alcohol’s carbon chain increased with one exception indicates that the reliability of this experiment has to be examined. With such a high percentage error from these results means they cant be definitive. Also only three trials were conducted on the five different alcohols. If the experiment were to be conducted again I would conduct five trials on each alcohol to get a better average.

1. Step six in the procedure is necessary because there maybe some left over solution left over in the filter and so we use the water to get rid of that excess solution which is leftover. Step six is also important because this 5 mL of water could make the left over precipitate release excess water in it making it so that the drying process is quicker.

The correct syringe is used to place 10 cm3 of the first glucose solution into the boiling tube.

The first stage in the brewing process is the preparation of the wort. After the malt is crushed to grist of suitable fineness, and preliminary treatment of the adjuncts takes place to facilitate extraction, the malt and adjuncts are mixed with brewing water to form a mash.

Step 1 and 2 was repeated by using distilled water by replacing the test solution.