ipl-logo

Pennies And Calorimetry Lab Report

467 Words2 Pages

Introduction The purpose of this lab was to compare galvanizing and creating brass with pennies using weight change, mass change and observations. The independent variables are the types of pennies used. The dependent variables are the characteristics, change in pennies, and mass of the pennies. The constant variable is the amount of sodium hydroxide. Literature review A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are shared pairs and bonding pairs, and the stable balance of attraction and a repulsive force between atoms, when they share electrons is called covalent bonding. Covalent bonding occurs when atoms share pairs of electrons. Another type of bonding is called a metallic bond. A metal bond is different form covalent and ionic bonds, …show more content…

This process forms a zinc coating producing a corrosion resistant. However, A corrosion resistant is a multi-layered coating of zinc –iron alloy and zinc metal. During the galvanization process a metallurgical reaction occurs. A metallurgical reaction is a diffusion process so the coating forms perpendicular to all surfaces. Conclusions Galvanized and forming brassed pennies aren’t that different. They don’t completely look the same but the masses of the pennies are pretty close in numbers. As the graph shows both the brass and galvanized pennies masses are close in height. With penny one and penny two the masses are even equal. Error Analysis We may have made a few errors along the way. We could have had a blunder because we may not have waited long enough for the penny to stay on the scale. We could have made a human error because we could have had a little more or less sodium hydroxide in our graduated cylinder and eyeballed it wrong. Another error you could have made was an instrumental limitations because read the cylinder wrong on the side by

Show More
Related
382 Words | 2 Pages

Don’t you hate when your taxes go to making useless pennies or when they take up space in a mess. Even though people think pennies are helpful they are not because they cost 2.41 to make just one. For years the Unites States have been discussing if we should get rid of the penny. Pennies shouldn’t be made in the United States. Source 1 states, other countries have got rid of the penny and were successful.

Read More
1653 Words | 7 Pages

The Department of Defense recognized the uselessness of the penny so they abolished the use of pennies at overseas military bases more than 30 years ago. Now, instead of using the penny these bases use the round up and round down method. The reason these bases abolished the penny is because the penny is “too heavy and not cost-effective to ship.” (4) This is also true in the United States as well. The penny has become completely obsolete and is no longer cost-effective to ship across the country.

Read More
1031 Words | 5 Pages

There is the controversies of a debate between whether or not the penny should be stopped being made in the United States. But there is economically pros and cons of producing this coin known as the penny. Although, the penny has some pros, the cons outway the pros by a lot, which is because of what actually happens when processing the penny and to ust having the penny alone. To start with, Pennies are often not really used, they’re left, thrown away, and no one really has used them as they’re intended for.

Read More
489 Words | 2 Pages

That is why I am supporting the retirement of the pennies. With me supporting the retirement of the penny I have some evidence on why the penny should be retired. One piece I have is in the article it states that it costs 11 million dollars to make pennies in other countries. That it is a lot of money being used even though the penny doesn’t really get used, it just gets pushed to the side and never gets used. They could be doing more with the 11 million dollars.

Read More
783 Words | 4 Pages

Are pennies worth minting? Many people believe they’re a waste of money, but some people believe that they’re still worth minting. Pennies should not be minted for many reasons such as, the penny costs more money to make then the penny has in value. Another reason is that pennies are a severe waste in time such as people often pay with pennies as a practical joke, which means hard working employees often have to spend the time to count those pennies. The final reason is because the penny is losing the government money.

Read More
239 Words | 1 Pages

In the Penny Boat Lab, we made a boat to hold pennies in water. First, we collected materials we needed which were scissors, a ruler, water, pennies, aluminum foil, a triple beam balance and a container. Using the ruler, we measured the foil 15cm by 15cm, then cut excess pieces. Next, we had to fold the foil into a “boat”. After, we measured the mass of our boat using the triple beam balance.

Read More
532 Words | 3 Pages

Pennies, for a majority of people, are just little worthless pieces of mass that are left basins collecting dust, being thrown into water fountains for luck, and at times are refused at supermarkets because of how little they are worth. Along with what the average American does with their pennies, the smallest United States currency is costing us more than seven million dollars a year, in the retail business alone. The Department of Defence doesn’t think that pennies are even worth it. As stated by Chris Ward in paragraph one of Source #2, “Pennies are too heavy and are not cost-effective to ship.” As well as, according to Source #2, “The U.S. Congress is considering eliminating the penny from the United States currency system.”

Read More
667 Words | 3 Pages

Kary Cabrera, Supernova Preserving the Penny The one-cent coin, also known as the penny, has been seen as a nuisance by many throughout the years. Many postulate that the penny will no longer be minted, meaning produced, within a few years. However, the solution seems to be controversial as others see the penny as an important part of the United States history. The penny should be preserved for the following reasons that will be divulged in this essay.

Read More
259 Words | 2 Pages

This shows that the penny is a part of U.S history and will cause many problems if they stop making them. Additionally in source 4, it is stated “This system would be extremely confusing

Read More
1097 Words | 5 Pages

Hirschi presumed that the answer to his question is that individuals who are highly socially integrated, or have a strong bond to society, are less willing than others to exhibit criminal, delinquent or deviant behaviours due to the risk of negative repercussions (Costello, 2010). Among the most influential of these repercussions are the informal punishments, such as the disapproval of those whose opinions are valued, rather than the formal punishments administered by the criminal justice system (Costello, 2010). It is further outlined that there are four elements to social bond. The first element of social bond is known as attachment, referring to the level of sensitivity an individual is seen to exhibit in reference to the opinion of others

Read More
790 Words | 4 Pages

Students at WMS found that out for themselves last week.” (Waterhouse Paragraph 3) this text may be trying to convince the reader that pennies are good by saying people don't mind giving them away. However, these statements are wrong, why would people want to give away money when by eliminating the penny it could give building structures to the poor instead by putting those metals into the building structure itself. A final quote from the article, “the penny still costs the U.S. just over 1.8 cents to produce. ”(The Ever-Changing Penny, Paragraph 4)

Read More
87 Words | 1 Pages

It is more important to give a special kind of attention to the corrosion behavior differences of the coatings, to ensure that the new coating is an acceptable as alternative. For instance, recently many zinc-nickel alloys have been utilized for replacing cadmium layers but due to their difference in corrosion behavior, various issues arise. Zinc-nickel alloys exhibit confined corrosion and cracking, whereas cadmium layers are susceptible to uniform corrosion. Anyhow the dissimilarities in corrosion behavior will play a vital role when providing the necessary corrosion protection

Read More
722 Words | 3 Pages

However they received no ill consequences for doing so. Many are wondering if it is time for the United States to eliminate the penny. It costs more to make a penny than it is worth. Although they changed from being pure copper to copper coated zinc and is smaller, they cost two cents to make each. With billions being made each year, it leeches money from our economy.

Read More
452 Words | 2 Pages

Freaky/Cool Facts Landon Smith Group #7 Chapters 3 & 4 Chapter 3 1. The carbon atom is a nonmetal substance that can bond with itself and many other chemical elements, in can form up to almost 10 million compounds. http://chemistry.about.com/od/elementfacts/a/carbonfacts.htm 2.

Read More
902 Words | 4 Pages

Properties of Ionic and Covalent Substances Lab Report Introduction The purpose of this lab was to determine which of the following substances: wax, sugar, and salt, are an ionic compound and which are a covalent compound. In order to accurately digest the experiments results, research of definitions of each relating led to the following information: ionic compounds are positive and negatively charged ions that experience attraction to each other and pull together in a cluster of ionic bonds; they are the strongest compound, are separated in high temperatures, and can be separated by polar water molecules. A covalent compound forms when two or more nonmetal atoms share valence electrons; covalent compounds are also

Read More

More about Pennies And Calorimetry Lab Report

Open Document