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Molarity is the number of moles of a substance in one litre of solution. The official symbol for molarity is “c” (concentration), but many people use the old symbol. Oct 17, 2016 - Liposome Calculator - Liposome Calculator is a tool for preparation. Concentrations (molarity and mg/ml), components moles, final solution volume etc. Are calculated based upon. Liposome Calculator is a free trial software application from the Teaching. Windows Mac Linux Android iOS Reviews. What we have to do is to express both number of moles and volume of the solution using terms present in the mass percentage definition. It is obvious that both formulas will be not enough for conversion - we have to find a way to convert mass of substance to number of moles and mass of solution to its volume.
Convert Ml To Moles Using Molarity Free Download For Mac Os
Summary Solutions are homogeneous mixtures. Many solutions contain one component, called the solvent, in which other components, called solutes, are dissolved. An aqueous solution is one for which the solvent is water. The concentration of a solution is a measure of the relative amount of solute in a given amount of solution. Concentrations may be measured using various units, with one very useful unit being molarity, defined as the number of moles of solute per liter of solution. The solute concentration of a solution may be decreased by adding solvent, a process referred to as dilution.
The dilution equation is a simple relation between concentrations and volumes of a solution before and after dilution.
When you press enter, ChemUnits calculates the molecular mass of ammonium phosphate as 149.09 g/mol. In the example above we typed the chemical formula directly into the Formula Mass dialog box. Just as with any Excel function, we could alternatively enter the address of the cell containing the chemical formula. In the example below, cell A1 contains the chemical formula for calcium carbonate, CaCO 3. Highlighting cell B1 and then selecting “Formula Mass” from the ChemUnits menu under the ADD-INS tab opens the Formula Mass dialog box. This time, rather than entering the chemical formula directly, we instead enter the address of the cell containing the formula, cell A1.
Many different programs and websites can calculate molecular masses, but what sets ChemUnits apart is its ability to convert masses and concentrations. As a first example, consider the common problem of converting between ppm (parts per million) and molarity (moles/liter). Suppose we have a 78 ppm solution of Ca 2+.
What is the molar (moles/liter) concentration of the calcium solution? Selecting “Convert Concentration” from the ChemUnits menu under the ADD-INS tab opens the Convert Concentration dialog box. In Mac Excel, select “Convert Concentration” from the. When you press enter, ChemUnits converts 78 ppm Ca 2+ to 0.0019 moles/liter. Note that instead of typing “moles/liter” as the output units, you could have equivalently typed “mole/liter”, “mol/l”, or “M”.
ChemUnits interprets all these variations as equivalent to molarity. In the example above we typed the chemical formula directly into the Convert Concentration dialog box. Just as with any Excel function, we could alternatively enter the addresses of the cells containing the required input. Below we solve the same problem as above, except this time referencing the appropriate cells containing the required input. As before, the advantage of referencing cells rather than directly inputting formulas into the dialog box is that, as with any Excel function, the conversion is automatically updated whenever the data change.
For example, in addition to “moles”, ChemUnits also recognizes “kilomoles”, “millimoles”, “micromoles”, and “nanomoles” (and all their common abbreviations, e.g. “kmol', “mmol', “umol', nmol”).
So in the above example, if you change cell B2 to “mmol/liter”, the converted concentration will automatically update to 1.9 mmol/liter. Note: The above image shows all the input, but in Excel only the first 5 input parameters are visible. You will need to scroll down in the dialog box to see the remaining input parameters. When you press enter, ChemUnits calculates the 1.1 ml of stock solution are required to make 1 liter of 20 ppm HCl solution (the remaining 997.9 ml of the dilute solution are pure water). A variant of the above example is as follows — suppose you need to make 1 liter of a 20 ppm chloride solution from a stock solution that is 0.5 molar HCl? This type of problem is easily solved by specifying the chemical formula used in defining the concentration of the dilute solution, in this case Cl (rather than HCl).