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When dissolved oxygen levels in a solution become very low, it can lead to hypoxia in aquatic organisms, causing stress, suffocation, and even death. This can disrupt the balance of the ecosystem and result in negative impacts on biodiversity and aquatic life. Monitoring and maintaining proper oxygen levels is crucial for the health of aquatic environments.
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What happens to the dissolved oxygen as is boiled?
When you boil water, the bubbles that you see in the boiling are the dissolved gases (oxygen) being eliminated from ther water. Hence unboiled water has a lot of dissolved gases. Boiled water has very little dissolved gas. Even below a liquids boiling point, the warmer a liquid becomes the less gas it holds in solution. The oceans of the world hold a lot gas in solution, carbon dioxide being one of them. If the oceans warm up, then some of this carbons dioxide will be eliminated into the atmosphere.
Explain how a solution can be both dilute and saturated?
A solution can be dilute and saturated if there is a small amount of solute relative to the amount of solvent, making it dilute, but all of the solvent has already dissolved the maximum amount of solute possible at that temperature, making it saturated. This can happen when the solute has low solubility in the solvent or if the temperature decreases after the solution has been prepared.
What is the percentage of dissolved oxygen in sewage?
The percentage of dissolved oxygen in sewage can vary depending on factors such as temperature, organic load, and biological activity. Typically, sewage contains very low levels of dissolved oxygen, often approaching 0% in areas with high levels of organic pollutants due to microbial respiration and decomposition processes.
What is an example of a solution made of gas dissolved in a gas?
Soft drink / soda pop, beer, the ocean. Soft drink and beer have carbon dioxide dissolved in it. When the can is opened we hear some of the gas escape but there is still lots left dissolved. The ocean dissolves oxygen and carbon dioxide. With out dissolved oxygen the fish would not be able to survive, with out dissolved carbon dioxide the crustaceans, corals and shell fish would not be able to make their shells etc. The amount of dissolved gas depends on temperature. The higher the temperature the less gas will dissolve. We know that opening a warm soft drink will quickly make the drink go 'flat'. Warm water can dissolve less gas.
What is the dissolved oxygen level of distilled water?
Distilled water typically has very low levels of dissolved oxygen due to the absence of minerals and other gases. The dissolved oxygen level can vary depending on exposure to air and temperature, but it is generally low compared to other types of water.
What is an example of a solution made of a gas dissolved in a gas?
The atmosphere, which is a solution of nitrogen, oxygen, carbon dioxide and several other gases in very low proportions.
What happens to the dissolved oxygen as is boiled?
When you boil water, the bubbles that you see in the boiling are the dissolved gases (oxygen) being eliminated from ther water. Hence unboiled water has a lot of dissolved gases. Boiled water has very little dissolved gas. Even below a liquids boiling point, the warmer a liquid becomes the less gas it holds in solution. The oceans of the world hold a lot gas in solution, carbon dioxide being one of them. If the oceans warm up, then some of this carbons dioxide will be eliminated into the atmosphere.
What do you call it when too much solvent is in to a solution and it becomes unstable?
When there is an excess of solvent in a solution, causing it to become unstable and unable to maintain the solute in a dissolved state, it is referred to as supersaturation. This can lead to precipitation or crystallization of the solute from the solution.
Why use starch solution in winkler method?
Starch solution is used in the Winkler method to act as an indicator for the presence of oxygen. When titrating the sample with iodine, the starch solution forms a blue-black complex with the iodine in the presence of oxygen, providing a visual endpoint for the titration. This helps to accurately determine the amount of dissolved oxygen in the sample.
Explain how a solution can be both dilute and saturated?
A solution can be dilute and saturated if there is a small amount of solute relative to the amount of solvent, making it dilute, but all of the solvent has already dissolved the maximum amount of solute possible at that temperature, making it saturated. This can happen when the solute has low solubility in the solvent or if the temperature decreases after the solution has been prepared.
Mountaineers carrying oxygen cylinders with them?
the air becomes rarefied and has a very low oxygen
Where does the oxygen in the ocean from?
In oceans, Oxygen gets dissolved in a very small proportion from the atmosphere. This process is very gradual. Oxygen also comes from the aquatic plants present in the water bodies.
What is the sugar in sweet tea like in science?
Very similar to the salt in the ocean. It is dissolved into a solution.
Can a solution be both saturated and dilute?
No, a solution cannot be both saturated and dilute at the same time. A saturated solution contains the maximum amount of solute that can be dissolved in a solvent at a given temperature, while a dilute solution has a relatively small amount of solute dissolved in the solvent.
Are mixture's also solution's?
Solutions are very similar to homogeneous mixtures; however, a mixture is not necessarily a solution. For example, trail mix is a heterogeneous mixture, but it is most definitely not a solution. For a substance to be considered a solution, a solute must be dissolved into a solvent.
Is solution of sodium hydroxide a mixture?
yes, it is a homogeneous mixture. i had a lab packet for chemistry due the other day and we went over it and this was a very similar question. it showed 4 pictures and we had to pick the homogeneous mixture in the previous illustrations.
What is the percentage of dissolved oxygen in sewage?
The percentage of dissolved oxygen in sewage can vary depending on factors such as temperature, organic load, and biological activity. Typically, sewage contains very low levels of dissolved oxygen, often approaching 0% in areas with high levels of organic pollutants due to microbial respiration and decomposition processes.
