Suppose you want to add the volume of the higher concentration, let's say 350 ml. If you want to find the volume of these concentrations, enter the volume of your desired concentration. The result is the alligation ratio, 4:3.Then follow the steps to obtain the ratio using the alligation calculator: Remember, the units for all three concentrations should be the same. How many parts of 12 molar and 5 molar solution should be mixed in order to obtain a 9 molar solution? Let's take an alligation calculation example to clarify things in a better way and get back to the question we left unanswered earlier. The calculator automatically finds the other two volumes required to produce that particular amount. To do that, simply input the volume of any one of the concentrations. Once you input these three values, the calculator will use the alligation mixture formula to find the alligation ratio for you.Īfter that, you have the option to determine the volume of your solution if you need in order to calculate the concentrations in a per volume manner. To calculate the alligation ratio, you need to provide three values:

You need to know the solution concentrations you are calculating the alligation ratios for, and the calculator will do the rest for you.

Using our alligation calculator is very simple. It means to get 10% of the ointment, mix one part of the higher concentration ointment (20%) to two parts of the lower concentration ointment (5%). The ratio is 5 : 10 5:10 5 : 10, but, if you further simplify it, then the alligation ratio is 1 : 2 1:2 1 : 2.

The ratio of the lower concentration is obtained by subtracting the required from the higher concentration.

The ratio of the higher concentration is obtained by subtracting the lower from the required concentration.

So, in this example, 20 20% 20 is the higher, 5 5% 5 is the lower, and 10 10% 10 is the required concentration. This means that the concentrations can be in any required unit, but they all need to be the same. In this scenario, the proportion of ointments is a percentage, but since all the concentrations are also in percentages, it will not affect the ratio. In pharmaceuticals and medicine, the amount and concentration of solutions and their components need to be extremely precise and accurate.Īn example of a common and simple question of alligation would be ' In what proportion should a pharmacist mix 20% and 5% zinc oxide ointments to prepare a 10% zinc oxide ointment?' You need to use the alligation mixture formula to find the answer! Let's now focus on alligation and its practical calculation in pharmacy. Indeed, by now, you are aware of what the alligation definition is. To find the result, place these values in the dilution formula: We also have a solution dilution calculator that calculates for you how to dilute a stock solution of known concentration to obtain an arbitrary volume of a diluted solution.įor instance, say you have a 16 molar brine solution (the molar unit shows the concentration), and you want to obtain 75 ml of 9 molar solution. Dilution is so simple that you can quickly obtain it by mixing a solvent into the higher concentration solution to bring it to the lower concentration.

The process of dilution of a solution requires you to prepare a solution of lower concentration from a solution of higher concentration.

That is what makes it different from dilution. The number it outputs is the ratio that two solutions of the same type but of different concentrations must be mixed in to create a third solution of an intermediate concentration. The alligation definition says it's the process of calculating the proportions of two solutions to be mixed in order to produce a required solution with a specific concentration.

Grams to moles calculator