The Effect of Salt on Boiling Temperature of Water

EXPERIMENTAL SCIENCE excogitateSThe Effect of Salt on the Boiling Temperature of Water(Initially prepared by a 4th Grade student)To right away jump to a section below click onINITIAL OBSERVATIONCooking instructions tell you to add salt to irrigate before stewing it. PROJECT TITLEThe Effect of Salt on the Boiling Temperature of WaterPURPOSE OF THE PROJECTTo find out how table salt affects the boiling temperature of urine. HYPOTHESISAdding table salt to boiling water will effort the water to boil at a higher temperature.MATERIALS AND EQUIPMENTTable Salt Distilled Water 2 Quart Cooking Pot Pint measuring cupful Teaspoon and tablespoon measuring spoons Thermometer Stirring spoon EXPERIMENTAL PROCEDUREBoil one quart of distilled water on a stove. Measure the temperature of the boiling water. Record the highest temperature reading. This is the manoeuvre to compare with. Measure out table salt using a kitchen measuring spoon. Level the spoonful. Add the measured salt to the boiling water and stir.Measure the temperature of the boiling water with the salt in it. Record the highest temperature reading. Repeat for other amounts of salt. DATAData Obtained 2/25/95, Mankato, MN Amount of boiling water2 Cups Temperature of boiling water (Control)212. 9F Amount of table salt added to boiling water devolve 11 Tbl. Temperature of boiling water subsequently adding salt engage 1215. 6F Additional amount of table salt added to boiling water do 21 Tbl. Temperature of boiling water by and by adding salt Run 2218. F EXPERIMENTAL OBSERVATIONSWhen the salt was added to boiling water it bubbled up more, and then stopped boiling. Shortly afterwards, it boiled again. If the thermometer extends beyond the alfresco of the pot it reads a higher temperature. Heat from the stove burner makes the thermometer read higher. Keep the thermometer over the pot when making temperature measurements. CALCULATIONSTotal amount of table salt added for Run 1 0 + 1 = 1 Tbl. Total amount of table salt added for Run 2 1 + 1 = 2 Tbl.RESULTS Temperature of boiling water (Control)212. 9F Amount of table salt added to boiling water Run 11 Tbl. Temperature of boiling water after adding salt Run 1215. 6F Total amount of table salt added to boiling water Run 22 Tbl. Temperature of boiling water after adding salt Run 2218. 3F Amount of Table Salt Added VersusWater Boiling TemperatureCONCLUSIONSIs the hypothesis correct? Yes. Adding table salt to water causes the water to boil at a higher temperature. Problems with doing the experiments.The temperature readings were hard to make. Gloves had to be worn to keep my hands from getting too hot. Had to be careful that the stove pepperiness was not hitting the thermometer. Other things learned. Be careful when adding salt to boiling water. It makes the water boil vigorously for a second or two. RELATED QUESTIONSwhy do you think cooking instructions tell you to add salt when boiling water? When the water is hotter, you can cook food faster. Salt in any case makes the food taste better. HOME-0 -0 .. /index. html