Introduction:
The standard amount of zinc to be put on a galvanized nail is between 0.28 and 1.00 oz/ft2. The higher quality nails have a higher amount of zinc, around 1.00 oz/ft2. The lower quality nails have a lower amount of zinc on them. The lowest amount it can be within the standard is 0.28 oz/ft2, otherwise it doesn’t meet the standard. However, the box doesn’t list the amount of zinc or whether it is good quality or not.
My goal in this experiment was to determine the amount of zinc (in grams) on 5 different galvanized nails to see if this specific box was up to standard, as well as how consistent the weight of the zinc is on each nail and do so by measuring the weight of the nail initially, then take the zinc off with the hydrochloric
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Then I weighed each of them on the analytical balance with a precision of +/- 0.0001 g. After finding the weight, I found the length of the nail by measuring with a ruler with a precision of +/- 0.1 mm. Then I was able to calculate the diameter of the nail with the caliper with a precision of +/- 0.001 mm. With those three measurements I was able to calculate the surface area. I prepared five different test tubes with the same amount of hydrochloric acid in each and then put the nails in them to eat away the zinc. I then re-weighed each nail and subtracted the final weight of the nail from the initial weight to get the weight of the zinc on the nail with a precision of +/- 0.0001 g. Table 1 lists the results from the experiment including length, weight, radius, surface area and mass of zinc of each …show more content…
These would both be determinate errors. This could have either made the surface area measurement larger or smaller than it actually is. Another determinate error that could have happened would have been measuring the diameter in inches instead of millimeters or forgetting to divide the diameter by 2 to find the radius. This could have also made the measurements bigger or smaller than they actually are. An indeterminate error could have been the nail having a head and a point. This creates the surface area to be off from what it actually is because we were finding the surface area of just a cylinder.
Some new ideas I have come up with since finishing this lab would be to redo it with “hot dipped” nails from different stores as well as electrolyzed nails from different stores. This would not only allow me to compare the nails in the box alone, but compare them to other nails from other stores that were galvanized the same and galvanized differently. I would be interested in knowing more about the purpose of the zinc on the nails as well as why there is a standard of how much zinc should be on a
Apparatus: * 1 measuring cylinder * 1 test tube * 1 stop clock * A large gelatine cube containing indicator and NaOH * Hydrochloric acid ranging from 1-3 molars * A scalpel Diagram: Method: * Take the large gelatine cube and cut into 15 equal pieces * Place on piece of the cube into the test tube * Measure out 10mls of HCl in the measuring cylinder * Pour the HCl into the test tube with the gelatine cube and start the clock * Time how long it takes for the pink colour inside the gelatine cube to completely disappear * You will also notice that the cube dissolves slightly * Record your results and repeat this same process 3 times for each molar of acid: § 1 molar § 1.5 molar § 2 molar
For this project you need many things. The first things you need are three plastic cups. The rust may stain on the cups so I recommend plastic ones. You want three nails covered in rust. All the nails must be the same size. You need a camera to take pictures of the changes that occur to the nail. Also, you need to get water, coke, and vinegar. It doesn’t matter what type of vinegar but I recommend regular coke. I would also appreciate it if you use tap water. The last thing you need is paper and a pencil.
Metal finishing is the critical part and step in preparing the metal for painting. It happens between the bumping stage when the metal is pried, hammered, pulled, and pushed into shape and the filling stage, when the small defects and details in metal finished surfaces are filled before being painted. Any type of finish is applied over your work weather the it be solvent, powder coated, or plastic it will have an index of reflection and ...
On regular application of the polish you find that your nails not only look healthier than ever before but you feel the same way
Although the cosmetic industry is a very competitive field to market in, Zaida Nails will focus on the gaps within the market in order to differentiate from competitors. Many of the competitors focus on innovating the style of the polish or the formula of the polish such as a growth or quick dry formula. In
3.) Divide your 30g of white substance into the 4 test tubes evenly. You should put 7.5g into each test tube along with the water.
The micro hardness of the prepared samples were obtained by using a Vickers Micro hardness Tester (Model : Leco LV 700, USA). 5 readings were taken for each sample to calculate the average hardness. An indentation load of 5gf was used. After calculating the average hardness for each sample, mean variance and standard deviation (S.D.) was calculated to check the consistency of the data.
Another version of the beaded nails is to allow some of the polish show through in between the jewels or beads. Metallic Mosaics With this version of nail artwork, the technicians apply shimmery polishes along with a thick glitter topcoat. Metallic mosaics make a bold statement and accentuate your nails on an optimal level. Fish Scales Another way to wow with your nails is with a fish scale design. A design such as this includes a light to medium base colour with black lines to form the scales.
Overall, use of stainless nails can significantly expand the life span of woodwork and other such entities. These nails are far cheaper too when compared to other types of nails. By lasting really long, stainless steel nails ensure cost effectiveness and best returns on your investment. Further, we will review a few general applications of stainless steel nails in home improvement projects.
How to do nail art designs with nail polish in your own home The simplest methods to improve your nails with works of art and fashions are unique, exciting and sophisticated is created using nails. If you are not the best time for you to get the nails, while the necessity to look for another event, the expertise of these false nails may be used. The format you will find many species, the lovable, pretty, create a frightening place painful, after design for precisely what you reveal my test. Just visit a salon to place artificial nails if you don't desire to problems.
Nails are used by most of the people in this world for different purpose not only just professionals even common man also use this nail for some reason. Mostly this nails are used by furniture makers and in construction and also by people who designs beautiful architecture with help of wood. This nails are comes in different varieties which are used for various purpose. Most common nail would be wire nail and others varieties include spike nail, brads nail, pins and tacks.
Moisture is heavy, and thus it can change the results of the experiment, as we only want the weight of magnesium and the magnesium oxide.
Repeat the process in order to make the surface even. Ensure that no discrimination can be made between the natural nail and the artificial one.
Zinc eugenate may decompose in the presence of water through the release of eugenol, making it weak ...
...ree careers make sure that every day activities do not lead to the degradation of the environment. For these reasons, it is clear that chemistry is beneficial to the way of mankind.