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What is desalination and why is this process done?
Desalination is a process that removes salt and other minerals from seawater to produce fresh water. This process is done to address water scarcity in areas where freshwater resources are limited. Desalination provides an alternative source of drinking water for coastal regions and islands, and is crucial for supporting populations and industries in arid regions with limited access to natural freshwater sources.
What materials are extracted from the sea?
the materials extracted from the sea are the salt- and seawead and driftwoodanswer 2 Salt, Iodine from seaweeds, agar from seaweeds, some of the world's magnesium is recovered from seawater. 'Drinking water' by reverse osmosis.
Can sea water freeze?
The seawater does freeze. The freezing point of seawater depends upon it's salinity,which is the amount of salt that it contains. Open ocean seawater has a salinity of about 35. Fresh water freezes at 0 degrees Celsius and 35 water freezes at about -2 degrees C. The decrease is linear so that water with a salinity of 17 freezes at about -1 degree C. In the winter large tracts of polar seawater freeze to a considerable thickness.
How you can prepare ORS with sugar and salt?
Ratio of sugar to salt of 12 to 1. Example: 30ml Sugar (6 level teaspoons) 2-5ml Salt (half a level teaspoon) 1 litre water. This solution does not replace potassium, but you can add some mashed banana or 125ml orange juice.
What are 2 differences between salt water and fresh water?
there is salt in salt water and little salt in fresh water
What is the amount of dissolved salt in seawater?
Concentration range of seawater acidity
What is the definitoin of salt water?
-noun1.water containing a large amount of salt. 2.seawater.
Why does the salty seawater around the north pole in the arctic freeze?
Because the salt depresses the freezing point, but not infinitely. The freezing point depression of ordinary seawater (about 35 PSU, or about 3.5% salt) is only about 2 degrees C.
Can you make fresh water into salt water?
Yes, by means of the following process: 1). Take a sample of fresh water. 2). Add a quantity of salt to it. 2). Stir the mixture until at least some of the salt is dissolved.
What is desalination and why is this process done?
Desalination is a process that removes salt and other minerals from seawater to produce fresh water. This process is done to address water scarcity in areas where freshwater resources are limited. Desalination provides an alternative source of drinking water for coastal regions and islands, and is crucial for supporting populations and industries in arid regions with limited access to natural freshwater sources.
What materials are extracted from the sea?
the materials extracted from the sea are the salt- and seawead and driftwoodanswer 2 Salt, Iodine from seaweeds, agar from seaweeds, some of the world's magnesium is recovered from seawater. 'Drinking water' by reverse osmosis.
Why do people add salt to water when cooking?
1.because they want it to heat up faster 2.to add flavor
The property of seawater used in induction salinometers to measure salinty is?
Induction salinometers measure the electrical conductivity of seawater. At a fixed temperature, the conductivity is approximately linearly proportional to salt concentration. The nature of the salt makes a difference, and sea salt composition varies somewhat around the world. For chemical solutions other than seawater, conductivity generally increases with increasing concentration, but the factor relating conductivity to concentration depends upon the composition of the solution. For a given concentration of salt near room temperature, conductivity increases about 2% for each degree Celsius of temperature increase because the viscosity of water decreases as the temperature rises. For solutions of strong acids, the temperature coefficient is nearer 1%/ degree. (The mechanism of conductivity in strong acid solutions differs from that in salt solutions.) Temperature coefficients are smaller at elevated temperatures. Weird nonlinearities occur in aqueous solutions below 4 degrees C, as the water begins to freeze. The temperature coefficient of seawater also depends slightly on the composition of the seawater. Commercial induction salinometers which calculate temperature corrections assume some standard composition of seawater, such as that found in Copenhagen bay. This may yield errors for seawater which has been concentrated by solar evaporation, such as in the Red Sea, or seawater which has been diluted by river water or ice melt.
Why does sea water not freeze?
Seawater does freeze, but it freezes at a lower temperature than pure water. When compounds, like salt, are dissolved in water, it freezes at a lower temperature. This is called freezing point depression. Seawater has a salinity of 3.5% and freezes at about 28 degrees F or -2 degrees C.
How many teaspoons of salt are in a cup of seawater?
As salinity of seawater varies considerably depending on region, this calculation is an average.A Liter of seawater contains an average of 35g of dissolved salts. *1.There are approximately 4.16 Cups in a Liter.35/4.16= 8.41There are approximately 8.41 grams of dissolved salts per Cup of seawater.A teaspoon of salt weighs approximately 6.8 Grams8.41/6.8= 1.23There are approximately 1.23 teaspoons of salt per Cup of seawater.*1 - Millero, Frank J.; Feistel, Rainer; Wright, Daniel G.; McDougall, Trevor J. (January 2008). "The composition of Standard Seawater and the definition of the Reference-Composition Salinity Scale". Deep Sea Research Part I: Oceanographic Research Papers. 55(1): 50-72.
How much water do you need to cook 3 cups of dry rice?
Why add salt at all? There is no reason to add salt to rice.
Went charter fishing in gulf of Mexico and had drinks in cooler with ice and they froze Why?
Likely some seawater got in with the ice, or the ice was made from seawater. Either way, the salt lowered the melting point of the water. Seawater has a salinity of between 3.1% and 3.8%. The melting point of 3.5% salinity sea water is -2 deg C, or 28.4 deg F. This could be low enough to freeze the drinks.
