Louis Reil essays

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How to Make Sulfuric Acid at Home

How to Make Sulfuric Acid at Home Sulfuric acid is a useful acid to have on hand for a variety of home chemistry projects. However, it is not easy to obtain. Fortunately, you can make it yourself. Homemade Sulfuric Acid Materials This method starts with diluted sulfuric acid, which you boil to make concentrated sulfuric acid. This is the safest and easiest method of making sulfuric acid at home. Car battery acidGlass containerOutdoor source of heat, like a grill Battery acid, which may be purchased at an automotive supply store, is approximately 35% sulfuric acid. In many cases, this will be strong enough for your activities, but if you need concentrated sulfuric acid, you just need to remove the water. The resulting acid will not be as pure as reagent-grade sulfuric acid. Safest Method If you arent in a hurry, you can concentrate sulfuric acid by allowing the water to evaporate naturally. This takes several days. Place an open container of sulfuric acid somewhere with good circulation, safe from the possibility of a spill.Loosely cover the container to minimize contamination with dust and other particulates.Wait. The water will evaporate out of the solution, eventually leaving you with concentrated sulfuric acid. Note that sulfuric acid is highly hygroscopic, so it will retain a certain amount of water. You would need to heat the liquid to drive off the remaining water. Quickest Method The fastest method to concentrate sulfuric acid is to boil the water out of the acid. This is fast but requires extreme care. Youll want to do this outdoors so you wont be exposed to acid fumes, using borosilicate glass (Pyrex or Kimax). There is always a risk of shattering a glass container no matter what you are heating, so you need to be prepared for that possibility. Do not leave this project unattended. Heat the battery acid in a borosilicate glass pan.When the liquid level stops dropping, you will have concentrated the acid as much as you can. At this point, the steam will be replaced by white vapor, too. Be careful to avoid inhaling the fumes.Allow the liquid to cool before transferring it to another container.Seal the container to prevent water from the air getting into the acid. If the container is left open too long, the sulfuric acid will become diluted. Safety Notes Its advisable to keep baking soda (sodium bicarbonate) or another base on hand. If you spill some acid, you can quickly neutralize it by reacting it with the baking soda. Simply sprinkle baking soda on the spill.Be careful to avoid contact with the sulfuric acid. Sulfuric acid is one of the strong acids. It is extremely corrosive and will react vigorously and unpleasantly with skin, mucous membranes, clothing and just about anything else it touches. Do not breathe the vapors, do not touch the acid, and do not spill it. Tie long hair back, wear goggles and gloves and cover exposed skin.Dont use metal pans or utensils. Sulfuric acid reacts with metal. Also, it will attack some types of plastic. Glass is a good choice.Sulfuric acid reacts with water in an exothermic reaction, but dilution with water is the best way to deal with an acid spill. Be sure to have copious amounts of water available, just in case something goes wrong. You can flood a small amount of acid with water. One the ac id is diluted, it can be neutralized with a weak base, such as baking soda, Caution: Sulfuric acid will splash when mixed with water. If you are going to work with this acid, know and respect its properties. Fast Facts: Making Sulfuric Acid Diluted sulfuric acid may be concentrated by boiling the liquid.Because fumes will be involved, its best to concentrate sulfuric acid outdoors or under a fume hood. Sulfuric Acid Projects and More Once you have sulfuric acid, its a good idea to learn more about it before using it, including the risks associated with using it and what projects you can do with it: How to Prepare Sulfuric Acid Solutions/DilutionsSulfuric Acid and Sugar DemoMixing Sulfuric Acid and WaterWhat Is Battery Acid? Notes About Battery Acid Battery acid is about 35% sulfuric acid. You can purchase it at an automotive supply store. It may not be on the shelf, so ask for it. Battery acid may be sold in five-gallon boxes, with the acid in a heavy-duty plastic bag and a plastic tube to dispense the liquid. The box is heavy; it would be disastrous to drop it. Therefore, its a good idea to know what to expect. Its practical to dispense a working volume of acid rather than try to deal with the entire container. Although the acid may come in a plastic container, its best to store this acid in a glass bottle. Sulfuric acid reacts with some types of plastic and may corrode a plastic container. The example mentioned used a glass wine bottle that had a plastic screw-top cap. Whatever container you use, be certain to label it as sulfuric acid and poison and store it somewhere that children and pets cant get to it. Also, dont store acid with ammonia because the two chemicals mix to release toxic fumes.

Health Education Case Study Example | Topics and Well Written Essays - 750 words

Health Education - Case Study Example Relationships provide people with a sense of belonging because they tend to feel loved and accepted (APA 16). Some of the aspects that define a relationship are care, love, trust, concern and commitment. Therefore, when any of these aspects is not fulfilled in a relationship, such a relationship becomes stressful. For example, Mary feels that her trust has been betrayed when she finds DeWayne strolling into a restaurant with another woman. Therefore, her devastation is an indication that she is hurt and depressed about this incident. Therefore, relationships become stressful because they are dependent on trust, and when this is breached, issues of suspicion and insecurity start cropping up. 2. Why Do Some People Handle Relationships and Stress Differently? Stress affects all people, but different people handle stress differently. According to Scott, every individual perceives situations differently and thus each individual’s stress coping skills are different (1). As such, no two individuals respond in the exact same way to any given situation. For example, some individuals are more naturally reactive and sensitive to stress. A study by researchers at Michigan Technological University found that men and women handle stress differently. One explanation can be derived from the differences in temperament. Temperament is a collection of inborn personal characteristics that are observable as early as in childhood (Klinic Community Health Center 12). These differences cause certain people to become naturally resilient in the face of stressful situations, while others tend to feel more threatened and are thus less able to cope. Another reason why people handle stress differently is because of the meaning that is often associated with certain circumstances. For example, when a person has a sense of control in a certain situation, no matter how difficult, he or she will feel more empowered and less threatened. People also handle relationships differently. For exa mple, in love relationships, women are described as more emotional and thus tend to give their all to the relationship. They believe that the relationship will materialize and culminate in a long-term commitment (Randall and Bodenmann 107). For example, in this case, Mary’s whole world is said to center on DeWayne, and she thinks about him constantly. However, other people, especially men, view relationships as a matter of convenience and avenues of getting certain satisfactions such as emotional and physical in the form of sex. This explains the emergence of phrases such as â€Å"friends with benefits.† For example, while Mary is counting on a wedding, DeWayne is strolling into a restaurant with another woman. This shows that he lacks commitment. In such a situation, when the relationship ends, Mary will be more stressed, while DeWayne might be less stressed. 3. Write a Brief Evaluation of the Situation above and Explain What's Happening to Mary As a Result In the sit uation above, Mary is deeply in love with DeWayne, but the same cannot be said of DeWayne. Since they have been dating for over two years, Mary feels that DeWayne is her partner for life, and they have even discussed plans about their eventual marriage. When DeWayne starts going slow on the relationship, Mary begins suspecting that something is wrong. She realizes that he might be seeing someone else and on confronting him, DeWayne ends the relationship