Acid Rain Although all rain will speed up the rate of corrosion, acid rain will accelerate it much more. Question Date: 2015-01-31. I think this because electrons move easier in saltwater then they do in fresh water. Aim: Investigating the rusting (oxidation) of iron. Your iron nail will indeed rust more quickly and severely in salt water. 3. Log in. In fact they are so certain of this that they question why we’re even bothering to do this experiment. Water is the enabler of fast oxidation of iron so freshwater will also cause rust. kept constant using ice-salt water bath. materials:two nail,two cup,salt water,fresh water,3. For my science project I decided I wanted to study physical sceince! Chemistry. Saltwater corrodes metal five times faster than fresh water does and the salty, humid ocean air causes metal to corrode 10 times faster than air with normal … Lets take as a given that rust is iron oxide. I learned that when a nail rusts it gains weight. Fe (OH)3 is rust that forms under water. However, salt water is a very good conductor (lots of dissociated ions) and s… 1. It forms when iron and oxygen react in water or in moisture in the air. The simulated sea-water was frozen in a refrige-rator before being used. Join now. Rust (hydrous oxide) is an example of this change that results when iron is exposed to water or damp air. The purpose of my experiment was to find out if salt water rusts nails faster than freshwater and which type of nails, galvanized or common will rust quickly.The procedure involved sanding ten galvanized and common nails.The nails were placed in glass jars and added with 150mL of water mixed with 15mL of salt. Answer: The corrosion of iron indicates a chemical change in the metal. There are ways to speed up rusting and ways to slow it down. After 7 days, the one in fresh water started to turn green, but the salt water penny got shiny and clean. Preparation of the Metals Either copper or iron metal was in the form of a wire with a diameter of 0.2 mm, cut into 2.0 m lengths. The problem you'll be attempting to solve in this science fair project is which metals corrode the fastest, and under which conditions. Cleaning & Laundry. One penny was 1969 and one was 1972 so they are of the same composition. More on variables here. That is why the literature says that the salt water system should rust more iron. Log in. The name of my science fair question is will and iron nail rust faster in fresh or salt water. When they see that the ice cube melts faster in freshwater they’re so surprised Variables to test. While trying to answer … What do you think? If we put a penny in salt water then, the penny will rust faster than the vinegar and regular water because, we believe that salt water and copper have some kind of reaction together and made the penny rust faster . The rusting of iron is characterized by the formation of a layer of a red, flaky substance that easily crumbles into a … I am conducting an experiment concerning the rate of corrosion versus the amount of salt in water. Materials: 4 iron nails, 1 steel nail, a piece of copper/brass, 5 test tubes, cotton wool, solid calcium chloride, magnesium ribbon. Hypothesis.I think that a nail rust faster in salt water because of the chemicals in the salt.4. For example, aluminum doesnt rust because it has a protective layer of aluminum oxide on its s… Someone said: Salt Salt, or sodium as it's referred to when it's a scientific element, makes the rusting process move even faster when it's present. My hypothesis is: I think the iron will rust faster in the salt water than the fresh water and vinegar. Rusting of iron refers to the formation of rust, a mixture of iron oxides, on the surface of iron objects or structures. At the end of my experiment my hypothesis was correct because the nail in the saltwater was the first to rust. Does iron nail rust faster insltor fresh water2. Iron oxide, a reddish-brown compound, is normally referred to as rust. Answer (1 of 4): I have done this project many times and I get the same answer..it creates an electrochemical reaction.. Normal tap water will only make a thin top layer of rust over the entire surface or until it can't rust anymore.. By Alex Muchinsky Coke, apple juice, orange juice, vinegar, or water! Hypothesis.I think that a nail rust faster in salt water because of the chemicals in the salt.4. In third … Then the wires were anodized for 30 minutes in … In conclusion, I think that salt water will be the most corrosive liquid and the nail made … I also learned that the mass is increased by the mass of the oxygen inside the iron. The reaction of iron and chloride underwater is also referred to as rust. i also think the color of the water will change to the rusty color. Answer 1: Iron in fresh water will actually rust faster than in salt water. Custom programming and server maintenance by. Iron rusts faster when exposed to salt water, which is why salting snowy roads is hard on cars. In the experiment you just wait and record which nail rusts faster. In our project, we tested rust rates of pennies. I have several jars set up. I think it will take one week for the iron to rust in the salt water. saltwater and fresh water both contain oxygen, the iron nail will rust faster in saltwater because it contains more oxygen. seawater!than!they!do!in!normal!water.!Water!is!the!enabler!of!fastoxidation!of!iron!so!freshwater! Where salt is present, electrochemical corrosion occurs, and the protective oxide film does not form, thus the corrosion (buildup of rust) continues unchecked. Iron and steel rust when they come into contact with water and oxygen. Chemistry. Ask for FREE. will!also!cause!rust.!However,!the!salthelps!the!electrons!move!around!quicker!so!iron! The … So you want to create iron oxide out of water plus iron. Further, the role of salt is to provide an electrolyte which makes it so that the "oxidation and reduction" reactions - the REDOX reactions - involved in this process occur more easily. The project is about whether iron will rust faster in salt water than fresh water, so data collection means collecting any evidence that it does or doesn't. Fill up test tubes as follows: Test tube A is filled with boiled … BONUS: You’ll also receive our Almanac Companion newsletter! Does An Iron Screw Rust Faster In Salt, Vinegar, Detergent, Or Plain Water? The title of my project is called On Your March, Get Set, Rust! The following experiment investigates the conditions necessary for rusting to occur. Method. But the salt water will rust a thin layer over the entire surface and then make rust under that layer and ; then under that layer ect.. (nails)!will!rust raster!in!saltor!seawater!than!fresh!water. Will the water color change while the iron rust? materials:two nail,two cup,salt water,fresh water,3. I did my research and concluded that metal should rust faster in relation to the salt content of the water. The orange juice was a good choice of solutions because acids … Which liquid will rust a nail the fastest- water, coke, apple This is one of the reasons that acid rain caused by pollution is so harmful. Salt water will cause corrosion faster because the salt will act as a catalyst steel up the change and erode the materials. DOES AN IRON NAIL RUST FASTER IN FRESH OR SALT WATER? Rust that forms on iron, however, cannot protect the iron from further corrosion because it's too porous. In your son's experiment, the salt (NaCl) provided the highest concentration of electrolytes to allow movement of the electrons from the solid iron to the oxygen atoms, so rust was able to form quickly. The combination of moisture, oxygen and salt, especially sodium chloride, damages metal worse than rust does. After a short time, I would expect the iron in the fresh water has a thin film after initial rust forms and protects it from any further rusting. That is, iron exposed to dry air won't rust nor will iron placed in water with no oxygen. Which liquid will rust a nail the fastest? They rust faster in salty water or acid rain. Salt and other substances put down to deal with icy roads greatly increase the rate at which rust forms on buildings, vehicles and other structures. Your iron nail will indeed rust more quickly and severely in salt water. My hypothesis is: if an iron nail rusts in fresh water then it will rust faster in saltwater. My hypothesis is: if an iron nail rusts in fresh water then it will rust faster in saltwater. Salt water, as opposed to regular water, speeds corrosion on metals that are exposed to it. This is all something that I am … Carl H. wrote:My hypothesis was that if one penny was placed in tap water and one in salt water, the penny in the salt water would corrode quicker than the one in fresh water. This combination corrodes, or eats away at, the metal, weakening it and causing it to fall apart. This rust is formed from a redox reaction between oxygen and iron in an environment containing water (such as air containing high levels of moisture). However, the opposite is true. A thin film of oxide forms on the iron; this actually protects the metal from further corrosion by slowing the rate of oxidation. In the experiment you just wait and record which nail rusts faster. I need to explain why the salt … You'll test five metals-silver, steel, zinc, copper, and aluminum-to see which corrodes fastest in water and in salt water. We concluded that pennies rust faster in saltwater in a time period of 4 days . Try boiling the water… does this make the nail rust faster, slower or is there no impact on the rusting time? I think this because electrons move easier in saltwater then they do in fresh water. Join now. Does iron nail rust faster insltor fresh water2. Not all metals rust. In these experiments, students use steel wood pads to explore how rust occurs. Iron will rust faster in salt water than anything else, including steel or copper. Copper never rusts. Problem! Community Experts online right now. Secondary School. I can't find anything to explain why the salt water penny didn't corrode. Question: Will an iron nail rust in salt water faster than in fresh water? Aluminium, on the other hand, does not corrode easily, because its surface is protected by a layer of aluminium oxide. Does A Plant Grow Faster In Salt Water Or In Fresh Water? An additional problem is that salt may be a factor that many protective paints and sealants don't defend against, and thus salt water may … The wires were cleaned by scrap- ing the surface carefully with a fine abrasive paper. ! when salt is in the water the iron corrodes faster. At the end of my experiment my hypothesis was … The!process!of!rusting!involves!electrons!moving!around,!and!electrons!move!more!easily!in!salt!or! Rust is the reddish brown compound called iron oxide that forms when iron an oxygen react in the presence of water and air, hence the term oxidation. 1. In the case of iron rusting, the new compound is called iron oxide… also known as rust! Salt is composed of sodium ions (Na) and chloride ions (Cl) that dissolve to made charged ions (Na+ and Cl-). I feel it would corrode all of the metals. Where salt is present, electrochemical corrosion occurs, and the protective oxide film does not form, thus the corrosion (buildup of rust) continues unchecked. Topic! The needle may be the only metal it may not affect it, like some other liquids, it may not rush unless the metal has been scratched deep. Half fill two test tubes with water; Put an iron nail in one test tube and label it A and a steel nail in … It literally takes a really long time for copper to rust. Certain factors speed up the rusting process, such as salt in the water. the first being pure distilled water, then a series with 2 tsp, 4 tsp, and 8 tsp of salt in 4 oz of water. Salty water speeds it up even more. The name of my science fair question is will and iron nail rust faster in fresh or salt water. Ask Your Question Fast! ZIMSEC O Level Combined Science Notes: Experiment: Investigating the rusting of iron . FeO (OH) is the form of rust that we see most of the time and Fe2O3 is rust that has become dehydrated. Likewise, bridges over salt water (such as the Golden Gate Bridge) need more regular maintenance. To speed it up metal objects can be immersed in water. So you need lots of lovely ions, that's the key - … Create your own unique website with customizable templates. This would mean notes and possibly pictures of anything s/he observes having to do with the amount of rusting; maybe any paper towels or coffee filters which were used to wipe away rust, or filter rusty water, etc. This science experiment is all about controlling variables to explore which material will rust an iron nail first. where salt is used to prevent roadways and walkways from becoming icy, so they are absolutely certain that the ice cube will melt faster in saltwater. Sodium chloride, damages metal worse than rust does to regular water, water,3. Copper, and under which conditions ( hydrous oxide ) is the form of that. Water is the enabler of fast oxidation of iron and steel rust when they see that the salt of. 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