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Encyclopedia > Percentage solution

In biology percentage solutions are often preferred to molar ones. A 1% solution would have 1 g of solute dissolved in a final volume of 100 ml of solution. This would be labeled as a weight/volume [w/v] percentage solution. For w/w, both solvent and solute would need to be weighed in the required ratios. Volume would accordingly be measured using a measuring cylinder, volumetric flask, pipette or similar. Labels should show what the percentage relationships are (w/v, w/w or v/v). This article needs additional references or sources for verification. ... Molar solution is used when referring to the molarity of a solution, which expresses its concentration. ... Making a saline water solution by dissolving table salt (NaCl) in water This article is about chemical solutions. ... A substance is soluble in a fluid if it dissolves in the fluid. ... Making a saline water solution by dissolving table salt (NaCl) in water This article is about chemical solutions. ... Illustration of a graduated cylinder Picture of a graduated cylinder. ... A volumetric flask. ... A selection of pipettes A pipette (also called a pipet or a pipettor) is a laboratory instrument used to transport a measured volume of liquid. ... The percent sign. ...


The molarity of a percentage solution (w/v) can be calculated using the molar mass of the solute used. For example, sucrose (table sugar) has a molar mass of a 342.34 g/mol. A 1% sucrose solution (100ml, w/v), therefore, is 0.0029 molar, or 2.9 mM. This page refers to concentration in the chemical sense. ... Molar mass is the mass of one mole of a chemical element or chemical compound. ... A substance is soluble in a fluid if it dissolves in the fluid. ... Sucrose (common name: table sugar, also called saccharose) is a disaccharide (glucose + fructose) with the molecular formula C12H22O11. ... Molar mass is the mass of one mole of a chemical element or chemical compound. ...


  Results from FactBites:
 
Solution - Wikipedia, the free encyclopedia (633 words)
In chemistry, a solution is a homogeneous mixture composed of one or more substances, known as solutes, dissolved in another substance, known as a solvent.
An ideal solution is one where the interactions of the molecules of the solvent with each other are equal to their interactions with the solutes.
If both solute and solvent exist in equal quantities (such as in a 50% ethanol, 50% water solution), the concepts of "solute" and "solvent" become less relevant, but the substance that is more often used as a solvent is normally designated as the solvent (in this example, water).
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