Examples of distilled water in the following topics:
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- Urine is a sterile waste product composed of water soluble nitrogen products.
- Drinking more water generally tends to reduce the concentration of urine, and therefore causes it to have a lighter color.
- This is the ratio of the weight of a volume of a substance compared with the weight of the same volume of distilled water.
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- Water potential is the measure of potential energy in water and drives the movement of water through plants.
- Water potential is critical for moving water to leaves so that photosynthesis can take place.
- Water potential is a measure of the potential energy in water, or the difference in potential energy between a given water sample and pure water (at atmospheric pressure and ambient temperature).
- "System" can refer to the water potential of the soil water (Ψsoil), root water (Ψroot), stem water (Ψstem), leaf water (Ψleaf), or the water in the atmosphere (Ψatmosphere), whichever aqueous system is under consideration.
- Solute potential (Ψs), also called osmotic potential, is negative in a plant cell and zero in distilled water.
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- Two or more elements combined into one substance through a chemical reaction, such as water, form a chemical compound.
- A common example of a chemical substance is pure water; it always has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory.
- For example, tap water may contain small amounts of dissolved sodium chloride and compounds containing iron, calcium, and many other chemical substances.
- Pure distilled water is a substance, but seawater, since it contains ions and complex molecules, is a mixture.
- Explore the interactions that cause water and oil to separate from a mixture.
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- Water often carries two costs.
- First, the water itself has to be paid for.
- Second, discarded water accrues expenses because most municipalities compute their sewage fees as a percentage of metered water use.
- Using fresh municipal water (tap water) once, then flushing it away, is both costly and a waste of good water.
- Vam Organic Chemicals Ltd. in Gajraula, India, for example, uses spent water for dust control and incorporates the effluent into its distilling operation.
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- Hydrides such as calcium hydride are used as dessicants, or drying agents, to remove trace water from organic solvents.
- In such cases, the hydride reacts with water, forming diatomic hydrogen and a hydroxide salt:
- The dry solvent can then be distilled or vac-transferred from the "solvent pot."
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- Simple alkyl derivatives of all three kinds are pyrophoric (burn spontaneously on exposure to air) and react with water to generate the corresponding alkane (RH); however, the zinc compounds are distinctly less reactive in other respects.
- Diethylzinc may be prepared and distilled (b.p. 117 ºC) under a protective atmosphere of CO2.
- Grignard and alkyl lithium reagents are not distillable liquids, and react rapidly with CO2 to give carboxylic acid salts.
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- Alkanes can be burned in the presence of oxygen to produce carbon dioxide, water, and energy; in situations with limited oxygen, the products are carbon monoxide, water, and energy.
- A mixture of products results, and these alkanes and alkenes can be separated by fractional distillation.
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- This makes them water resistant, which prevents water from sticking on surfaces.
- Paraffin wax is a type of synthetic wax derived from petroleum and refined by vacuum distillation.
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- Here is an example of explaining why the argument and findings of an experiment matter: "The findings of a study of the water conditions at various depth levels along with the salmon population of a three hundred mile stretch of the Columbia River introduces a necessary insight for the future of conservation efforts.
- Specifically, the study demonstrates the problem with efforts to increase salmon population by improving water conditions.
- What the study shows is that increased salmon population can occur alongside of decreasing water conditions.
- It is possible that the increased salmon population is not an indicator of cleaner water, but an indicator of the disappearance of minor waterways, which are then forcing salmon toward polluted sources. "
- An abstract is a short summary that distills the topic, methods, results, conclusions, and recommendations of a paper in about 100 to 300 words.
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- Because it comprises most of the mass in water, it also comprises most of the mass of living organisms.
- Oxygen is more soluble in water than nitrogen is; water contains approximately one molecule of O2 for every two molecules of N2, compared to an atmospheric ratio of approximately one to four.
- The solubility of oxygen in water is temperature-dependent, and about twice as much (14.6 mg/L) dissolves at 0 °C than at 20 °C (7.6 mg/L).
- At 5 °C the solubility increases to 9.0 mL (50 percent more than at 25 °C) per liter for water and 7.2 mL (45 percent more) per liter for sea water.
- High-purity liquid O2 is usually obtained by the fractional distillation of liquefied air.