...Does Salt effect the Boiling Temperature of Water? By Jason Project Design Plan Water freezes at 32°F and boils at 212 °F. Dissolved substances such as salt lower the freezing point of water. This is why salt is sprinkled over icy pavement or wet roads in winter. It causes the temperature of the water to reach less that 32°F to form ice. Does it also have an effect on the boiling point of water? Does the quantity of salt added effect the boiling point? My experiment is to find out what effects salt will have on the temperature of boiling water. The hypothesis of my experiment is that if I add more salt then the temperature of the boiling water will increase. I believe the more salt added to the water the higher the boiling temperature is going to be. I will be using 2 cups of water as a base in a 2 quart stainless steel pot. I will add 1 tsp of salt, 2 tsp of salt and 4 tsp of salt and measure the temperature of the water. Literature Review If you heat up two pots of water one with tap water and one with tap water and 20 percent salt water, the pot with the salt water will boil before the pot without salt water. The heat capacity of water is higher than salt water. This means that it takes less energy to increase the temperature of salt water than it does unsalted water. Thus salt water warms up quicker and gets to a boiling point faster than unsalted water. (Dammann, 2013) Dissolving table salt into water will lower the overall vapour pressure of...
Words: 2714 - Pages: 11
...Statement This experiment will test if salt increases how fast water comes to a rapid boil. I will determine if water will boil faster once salt is added to it. The experiment will use identical pots, amounts of water, temperature settings, starting temperatures, and the same stopwatch to ensure valid and accurate results. This experiment is relevant to the real world because it tests if water will come to a boil faster if a common house hold ingredient, salt, is added to it. A1. Literature Review I referenced two studies before completing my experiment. The first is from the Museum 4 Kids website, which asks the question if salt is added to boiling water will it increase the temperature. The experiments objective is to bring water to a boil (212 degrees Fahrenheit) and then add in the salt to see if this will see an increase in temperature. The study used two cups of boiling water and had their control temperature at 212.9 degrees Fahrenheit. The study added one tablespoon of salt to the boiling water at two separate points. The first when the water first came to a boil and the second when the temperature steadied after adding the first tablespoon of salt. The outcomes did show an increase in the boiling temperature. First raising it from the 212.9 degrees F to 215.6 degrees F and then 218.3 degrees F. The second study I used looked at the starting temperatures of water to see if hot or cold water would come to a boil faster. Their hypothesis was that hotter water would boil...
Words: 1811 - Pages: 8
...Task 3 Task 3 Topic: How do different levels of salt water affect magnet strength? Candyce Eckert Western Governors University WGU Student ID: 000431193 PROJECT DESIGN PLAN There will be a total of five 500 ml water samples that are at 75°F and that will have different amounts of salt ranging from 0 ml, 25 ml, 100 ml, 200 ml, 400 ml that will be mixed in a glass container with a one inch high marking noted on the side. Fifteen magnetic paper clips will be laid on the bottom of the container after the solution is mixed. A magnet will then be submersed into the salt solution to the one inch high marking dictated on the side for thirty seconds allowing for the magnet to attract the paper clips. The magnet and subsequent paper clips that it draws will be taken out of the solution, counted, and then recorded. These steps will be repeated until all five salt water solutions are tested. Each of the five solutions will be tested three times in order to deduce the average and ensure reliability of said testing. The greater the number of paper clips picked up deducts greater magnetism. LITERATURE REVIEW In an article written by Richards, Johnson, and Nyeggen (2015), a group of students grappled with the question, “Will Magnets Work Underwater?” some thinking that the water would block the magnetic attraction. They were disproved when magnets still had attraction underneath the water. The students further questioned the attraction of...
Words: 1848 - Pages: 8
...Water Density Experiment: Why Does an Egg Float in Saltwater? Abstract The purpose of my experiment is to find out if an object, which would normally sink in tap water, would float when the water density is increased. The object I chose for my experiment is a raw egg. In the experiment, I changed the density of the tap water until I could make an egg float. The simplest way to change the density of water is by dissolving salt in it. I concluded that dissolving 4 teaspoons of salt in 250 milliliters of water is sufficient to float a raw egg. Introduction The goal of my experiment was to test the hypothesis whether adding salt to regular tap water could increase water density enough to make an object to float. The water density concept states that in order for an object to float in the liquid, the density of an object must be less than that of the liquid. According to Charles Ophardt, Elmhurst College (2003), density is defined as a ratio of a material’s mass divided by its volume. The density of tap water is known to be one gram per milliliter. In my experiment, I will demonstrate changing the density of water by dissolving various amounts of salt crystals into 250 ml of tap water until the egg floats. Materials Needed In my experiment, I used the following materials: * 5 clear 400 milliliter containers * 300 milliliters measuring cup * Tap water 250 milliliters per container * 5 raw eggs * Morton iodized salt * 1 tea spoon ...
Words: 1078 - Pages: 5
...Effect of Table Salt on Water Reaching 99⁰ C Abstract I had always been told that, when cooking, adding salt to water would make the water boil faster. Recently I had heard that this wasn’t true. Beginning with the hypothesis that salt did increase the boiling time, I set out to discover if this was the case. Using the home stovetop, I boiled 2 liters of water each time and the amount of salt added was the control. The experiment was to find out how long it took the water to reach 99⁰ Celsius. After 8 boils at four different salt concentrations, the effect on the time to reach the desired temperature was negligible. The water was already boiling each time the temperature achieved the target. The experiment seemed to indicate the salt has no effect on the time it takes water to reach 99⁰ C. Background As mentioned in the abstract, I had been led to believe that adding even a “pinch” of salt to water would accelerate the time that water would reach boiling. However, this was challenged recently and I was curious if I had been told a “wives tale” all my life. I have no chemistry background, but since the experiment, I have a better understanding of what should have occurred because of the added solvent (NaCl in this case), which will be addressed in the conclusion. Design Eight experiments were run using four measurements of table salt in 2 liters of tap water. Care was taken to ensure each of the variables, other than the control variable of salt, remained constant...
Words: 1029 - Pages: 5
...Boiling Water Mrs. Goodyer Due Date: 21 July, 2006 Ben Graham Aim: To observe whether salt levels in water will alter boiling temperatures and times. Hypothesis: I hypothesise that adding salt to the water will raise the boiling temperature of water and lessen the time it takes to boil. This hypothesis is due to the ebullioscopic constant of water and the high heat capacity of water and low heat capacity of salt. Equipment: Beaker or saucepan Bunsen burner or hotplate Thermometer 45 grams of salt Stopwatch or timer Method: A saucepan was filled with 100ml of water. Its temperature was observed and recorded before the saucepan was placed on the hotplate. The timer was started as soon as it touched the hotplate. The thermometer was held in the water, not being allowed to touch the bottom of the saucepan. Every 30 seconds, a reading was recorded from the thermometer. Once the reading had been the same for one and a half minutes, the experiment was stopped. The experiment was repeated 4 times in total. The experiment was then repeated, but 15 grams of salt was added before heating started. Again, it was repeated, but with 30 grams of salt. The recorded results were then categorised, organised and displayed in appropriate formats. Results: Experiment 1 ...
Words: 1300 - Pages: 6
...of water effect the amount of time it takes to boil? Project Design Plan The normal boiling point of water is 100°C (Bodner research Web, n.d.). Salt is considered to be a non-volatile soluble substance and in turn is supposed to increase the temperature at which the water boils Southwest Research institute, 2014). Chefs have thought for ages that adding salt to water would increase the boiling time. A higher boiling temperature should increase boiling times although displacing water with salt reduces the volume of water to boil. Literature Review The boiling point of a liquid is the point at which the liquid transition to a gas. Once the boiling point is reached the temperature remains constant until all of the liquid has changed state to a gas (Bodner Research Web, n.d). Salt water has a higher boiling point than plain water. It takes less energy to increase the temperature of salt water by 1°C than it does for regular water. The heat capacity of dissolved salt is almost zero so displacing regular water with salt water lowers the amount of time to heat the same capacities of water because of the displaced water volume by the salt (Southwest Research Institute, 2014). There have been many experiments on the subject of salt water and boiling times. Typically these experiments have been incorrectly done as simply adding salt to identical volumes of water has almost zero effect on the boiling times or temperature. The correct way to undertake this experiment is to...
Words: 1644 - Pages: 7
...How does salt have an effect on freezing point of water? 2. Relevance of your testable question When salt is added to water it results in the reduction of its freezing point and the density of water increases. Freezing point depression which is a colligative property does not depend on its solute character rather it depends only on its solute concentration. 3. Literature review Entropy is frequently defined as a quantitative measure of randomness. When a solute is dissolved in a solution similar to water, the entropy of the solution increases. Freezing becomes extemporaneous when the extent of heat energy lost by the water during freezing is equivalent to the temperature times the reduction in entropy linked with freezing (Brennan, n.d.). Water freezes and melts at 0°C (32°F). However, dissolving any substance in pure water lowers the freezing point. A water with very high salt level such as highly saline lake waters at Death Valley, California (nearly 300,000 units per million "salt") may freeze and melt at temperatures as low as -20 to -30°C. As salt lowers the freezing point depression, it is used on icy roads and highways in order to melt the ice (Benison, 1998). The reason why salt lowers the freezing temperature of water can be explained as follows: When liquid pure water reaches its freeze point and becomes ice, the water molecules form themselves into an ordered formation. Salt reduces this course. When salt is added...
Words: 1524 - Pages: 7
...hours to freeze and desalt the water. I hypothesis that it will take about 24 hours to freeze and desalt the water. Hypothesis Problem Results In the time I spent on this experiment, the water didn’t desalt. The huge amount of salt missing at the end has caused me to believe that on day nine or ten the water would have purified. In the time I spent on this experiment, the water didn’t desalt. The huge amount of salt missing at the end has caused me to believe that on day nine or ten the water would have purified. How long does it take to desalt salt water by freezing it? How long does it take to desalt salt water by freezing it? My hypothesis was incorrect. The salt water didn’t desalt in 24 hours. If I did the experiment longer I believe it would have desalted within a few days after I ended the experiment. My hypothesis was incorrect. The salt water didn’t desalt in 24 hours. If I did the experiment longer I believe it would have desalted within a few days after I ended the experiment. After you mix the sea salt and the water, freeze it. Check the saltwater every 24 hours to see if the water has been desalted. After you mix the sea salt and the water, freeze it. Check the saltwater every 24 hours to see if the water has been desalted. For this experiment you will need a freezer, measuring cups, six 280 ml. plastic containers, sea salt, a ¾ gallon cooking pot, the...
Words: 310 - Pages: 2
...Science 9 November 20th 2013 LAB Density Guiding Question: How does sugar/salt affect the density of water? Hypothesis: I think that the density will increase because salt and sugar add mass to the water, therefore increasing the density. For example, ocean water, it is more dense than the regular water because it isn’t pure like regular water, it has more salinity in it making it more dense. Notes: -A sugar and salt experiment. -We did 5 tests for each. -First, we calculate the density of PURE water, then with adding gram-by-gram of sugar or salt. -We used 10ml of water in each test. -Density=mass/volume, in this case mass/10ml Tables: Salt: Sugar: Graphs: Salt: Sugar: Calculations: Conclusion: From the graphs, tables and calculations it is shown that the solution between sugar and water is denser than the solution between salt and water. This is because sugar is sweet and when it is in contact with water it turns into a honey-like structure. Also, when salt is in contact with water, it’s formula, NaCl, splits up leaving each element with a charge and making more space for more salt, therefore leaving the solution less dense, where sugar doesn’t split up, it stays together making the solution denser. Evaluation: The mistakes we made at the beginning were that we didn’t put the EXACT amount of the solvent (water) and the solute (salt/sugar), but then we realized that some of the answers we got didn’t make sense, so we...
Words: 839 - Pages: 4
...| | | | | Ice Melting Experiment and Analysis | INT1 Natural Science Task 3 | Ice Melting Experiment and Analysis ------------------------------------------------- Objective The objective of this experiment is to test the melting point of ice against different variables. I will use a control of ice against air and test this next to ice in water, sugar on ice, salt on ice and Baking Soda on ice. By measuring the melting time of each element on an ice cube I will be able to tell which element affects ice’s melting properties at what rate. Everyday we use chemical mixtures to melt ice that affects our roadways. A lot of these chemical mixtures are harmful to our waterways, and can pollute the environment. I believe its important to look for alternatives that can both help our roads from freezing in the winter while being kind to the environment. Industry Literature Review There are many different chemicals used in commercial ice melters that are made for our roads. Commercial companies tend to test for what elements melt ice the fastest, thus, producing a “best working” product. It is the pressure from consumers that encourages companies to test for possible harmful effects on the environment by these products, and what is most environmentally friendly. Ossain Inc. serves customers word wide with products designed around different needs for the type of ice melter needed. Their opinion on the ice melting industry is that the majority of ice melting...
Words: 1663 - Pages: 7
...out. Hypothesis: I suspect that the refrigerator and freezer are not the most efficient ways to quickly cool a drink. Both the refrigerator and freezer cool through convection, and I believe conduction will prove to be a more effective cooling method. As such, I will test both the refridgerator and freezer, as well as several variations of ice baths.I believe that an ice/water/salt bath will provide the best results, because it will provide for the most conductive area, and will also have the lowest conductive agent temperature, because the addition of salt will lower the freezing point of the ice/water solution, allowing the solution to get a few degrees colder than the standard ice/water solution. Experimental Design: To test the above questions, I intend to test a solution (in this case, simple bottled water) in a variety of different environments to see which environment cools it the fastest. I will test 5 different methods of cooling the bottles of water, and I will test 4 bottles in each method at different timeframes. The 1. Bottled water in the refrigerator with normal use. I will put bottles in the refrigerator, and will remove them at the designated testing time periods. During this time, the...
Words: 1905 - Pages: 8
...Jacinta Houng Comparing the Solubility of Chemicals in Water “Water is known as the “universal solvent” because so many different substances dissolve in it and we rely on this for many of our daily needs.” Introduction: Water is known as the ‘universal solvent’ as it is capable of dissolving a variety of different substances and dissolves more substances than any other liquid. However the ability to be soluble depends on a substances polarity and bonding. This then contributes to the various ways that different types of chemicals interact in water. Solubility is crucial to every living thing on earth as water can carry along valuable chemicals, minerals, and nutrients necessary for survival. In fact Water covers 70% of the Earths surface and composes 55-70% of the human body. Water is an excellent solvent due to its chemical composition and physical attributes. According to USGS (http://water.usgs.gov/edu/qa-solvent.html ) Water molecules have a polar arrangement of the oxygen and hydrogen atoms—one side (hydrogen) has a positive electrical charge and the other side (oxygen) has a negative charge. A polar bond is a covalent bond between two atoms where the electrons forming the bond are unequally distributed. This causes the molecule to have a slight electrical dipole moment where one end is slightly positive and the other is slightly negative. "Like dissolves like" is an expression used by chemists to help them remember how solvents work. The expression refers to...
Words: 3033 - Pages: 13
...Magic Salt, Melting Snow. On this experiment, it’ shows how will acquire some basic and some practical information on the chemistry and physics of water, it’s melting a freezing points and how various differing chemical compounds are utilized to promote a change of state. For example, just plain salt can be used to raise the melting point of water or lower the freezing point. Salt lowers the temperature at which water freezes. Salt absorbs moisture and forms ions when dissolved in water. In the case of snow or ice, when salt lowers the melting or freezing point of water, it serves as a freezing point depressor. Other substances that dissolve in water also lower the freezing point of the solution. The amount by which the freezing point is lowered depends only on the number of molecules dissolved, not on their chemical nature. This so called freezing point depression is described as a colligative property of water. This property is one that depends on the number of ions that a substance produces when placed in solution. The more ions a substance produces when in solution in water, the more effective it is in lowering the freezing point of water. Salts such as sodium chloride and calcium chloride which ionize are useful in de-icing. However there are other variables to be considered such as the effects of these salts on grass, pavements, cars, concrete and living animals in the area. As for the methodology of this project, this science fair experiment also serves to acquaint...
Words: 757 - Pages: 4
...& Salt Purpose: The purpose of this experiment is to separate a mixture of sand and salt. Materials: * Small beaker * Electric balance * Sand * Salt * Water * Graduated cylinder * Stirring rod * Filter paper * Flask * Rubber policeman * Wash bottle * Funnel * Bunsen burner complete with rubber tubing and a source of gas * Hot hands * Insulator pad * Ring stand complete with a ring * Wire gauze * Striker Pre-lab Questions: 1. Water will be useful in separating the salt and sand because salt is soluble in water, which allows it to dissolve into a homogenous mixture, allowing for filtering of the sand. 2. Properties of sand and salt that will help separate them are that salt is water soluble, and the sand is insoluble in water. 3. The three things that could go wrong in this experiment are: * During the evaporation of water while using the Bunsen burner, the flask might crack or explode – this can be avoided by not heating the flask over a prolonged period of time, and not heating it too intensely. * Some of the sand may be lost during the filtration – this can be avoided by carefully filtering the mixture, and making sure that all of the sand has been washed off from the beaker, and the rubber policeman. * Some of the salt may be lost if the salt doesn’t dissolve completely or if some of the salt water is spilled – this can be avoided by making sure that all of the salt has...
Words: 1329 - Pages: 6
