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How do I calcualte volume of solvent when given total volume of solution and concentration of solute?

The following calculation should only be taken as a rough estimate, and at a temperature of 25°C. The subscript A represents aniline, and the subscript B represents acetone. We start by estimating the ...
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Mass of solute in solution vs mass of solute in solvent

Usually mass of solute per volume of solution is used, as subsequent dilutions (with pipettes) are also volumetric. Calculations of standards and sample concentrations cancel out the volumetric units, ...
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Mass of solute in solution vs mass of solute in solvent

The first case would be: $$C_1=\frac{m_{solute}}{V_{solvent}+V_{solute}}$$ The second case would be: $$C_2=\frac{m_{solute}}{V_{solvent}}$$ Note that when the volume of the solute is very low, both ...
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How to determine if two calibration curves are parallel, within 5%

Here's some R code to illustrate one way to handle this situation. First, let's generate some toy data. ...
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is it possible to make crystals of multiple organic compounds that form a homogenous mass under normal conditions

Some chemicals, organic or not, naturally separate when crystallized. For example, mixed dextro- and levo- forms of tartaric acid ("racemic acid") were separated by Louis Pasteur by the ...

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