Research Question: Which salt solution caused the sailor to die? Hypothesis: If the sailor drank the 40% salt water solution‚ then would die sooner‚ because the high amount of salt causes more dehydration. Variables: Independent- Salt Solution Dependent- Mass of Potato Control- Tap Water Materials: •Tap Water (50 ml for each cup) •Salt •Beaker •3 cups •3 pieces of potato •Scale Procedure: Step 1: Gather Materials. Step 2: Weigh each potato separately on the scale and record weight
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these atoms come together‚ they form a strong bond that can’t be broken. What is Table salt? Sodium chloride Designed for cooking Has many ingredients 1. Potassium iodine- stabilizer 2. Glucose (sugar) - prevent the potassium iodine from breaking down. 3. Calcium silicate- anti-caking additive What at Sea salt? Used for cooking and cosmetics A natural form of salt Course grind (bigger chunks) It’s extract from ocean water through evaporation process
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whether salt affects the movement of water in the cell. Independent variable is the factor that affects the value of variables dependent to it. In osmosis lab‚ the independent variables are the potato and onions. The dependent variable is the variable whose value is measured to determine the extent of the effect of another variable to it‚ as in an experiment. In osmosis lab‚ the dependent variable is the length of the potato. The controlled variables are the amount of water‚ amount of salt‚ and the
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and salt water is that both are basically the same chemical - water‚ although the contents of other materials dissolved in it differ. Both contain some amount dissolved chemical in it though the quantities vary. Both form different links in the water cycle of the nature. Both are homes to aquatic life. Difference: Salt water contains much higher quantities of dissolved chemicals as compared to fresh water. This higher concentration of chemical also raises the density of salt water
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Purpose: How will salt and plain water affect plant cells? Hypothesis Clear water: If you place carrots and celery in plain water they will become flaccid and then eventually start to loose its colour and pieces of the celery or carrots will fall off. I know this because the vegetables will continue absorbing water putting the vegetable in a hypotonic solution. Pieces of the vegetable could break off because the cells are not getting what they need. The cells need to create glucose and oxygen
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heterogeneous mixture composed of 5.00 grams of salt‚ 2.00 grams of sand‚ 50.0 mL of water‚ 15.00 grams of pebbles‚ and 1.00 gram of iron filings‚ and leave as much salt as possible remaining. Using separation techniques including magnetizing‚ evaporation‚ filtration‚ etc. the heterogeneous mixture was thoroughly separated into 4.88 grams of salt. There have been some errors regarding the isolation techniques and processes‚ however‚ the mass of salt at the end is substantial enough to conclude that
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Sodium chloride‚ also known as salt‚ common salt‚ table salt‚ or halite‚ is an ionic compound with the formula NaCl. Sodium chloride is the salt most responsible for the salinity of the ocean and of the extracellular fluid of many multicellular organisms. As the major ingredient in edible salt‚ it is commonly used as a condiment and food preservative. [edit] Properties Thermal conductivity of pure NaCl as a function of temperature has a maximum of 2.03 W/(cm K) at 8 K and decreases to 0.069 at 314
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Gravimetric Analysis Report Aim: Determine the % by mass composition of a sand-salt mixture. Background: Gravimetric analysis is a method which is based on the isolation of the desired sample in pure forms or in some combined form from a sample‚ and weighing the isolated constituent. Then from the weights of the sample or precipitate‚ a percentage can be calculated out of the constituent. Solubility is the amount of a substance which is called the solute‚ dissolves in a volume of liquid substance
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February 21‚ 2013 Physics How much salt does it take for an object to float? Table Of contents Page2 - Abstract Page 3- Introduction/ Research Page 4- Purpose/ Hypothesis Page 5-Materials Page 6- Procedure Page 7- Data/ Observations Page 8- Conclusion Page 9- Acknowledgements Page 10-Biblical Application Page 11- Sources Pages 12 and 13-Log Book Page 1 Abstract My project is about how much salt it will take for objects to float. In my project I will explain why
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Chloride is also found in seaweed‚ olives‚ tomatoes‚ rye‚ lettuce‚ milk‚ eggs and meat2‚6. Large amounts in processed foods. Salt substitutes usually contain potassium chloride. Supplements: Found in tablets‚ powders and drops form. They range from $6 to $30. Web/print based claims: Himalayan pink crystal salt is predominantly sodium chloride(95-98%)‚ contaminated with polyphalite‚ fluoride ‚ iodine‚ and small amounts of numerous trace minerals7. Promoting excellent
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