Question

How can I calculate the amount of solute in the solution?

Answer 1

The amount of the solute in the solution can be termed as the concentration of the solution and there are many methods by which can calculate the amount of solute like molarity, molality, normality, mass percentage, volume percentage, etc.

Complete step by step answer:
- We know that the solution is made up of two components i.e., solute which is in less quantity and which is mixed, and solvent which is in higher quantity, and the component in which the solute is mixed.
- The amount of the solute in the solution can be termed as the concentration of the solution and there are many methods by which can calculate the amount of solute like molarity, molality, normality, mass percentage, volume percentage, etc.
- The molarity of the substance is decided by two factors i.e., moles of the solute and volume of the solution in liters and we get by dividing the moles of the solute by the volume of the solution.
$Molarity=\dfrac{moles\text{ }of\text{ }the\text{ }solute}{Volume\text{ }of\text{ }the\text{ }solution}$
- There are two factors that are used for the calculation of the molality of the solution, i.e., the number of moles of the solute and the mass of the solvent in kg. When we divide the number of moles of the solute by the mass of the solvent in kg, we get the molality of the solution. The formula is given below:
$Molality=\dfrac{Moles\text{ }of\text{ }the\text{ }solute}{Mass\text{ }of\text{ }the\text{ }solvent\text{ }in\text{ }kg}$
- The normality of the substance is decided by two factors i.e., the gram equivalent of the solute and volume of the solution in liters and we get by dividing the gram equivalent of the solute by the volume of the solution.
$Normality=\dfrac{Gram\text{ }equivalence\text{ }of\text{ }the\text{ }solute}{Volume\text{ }of\text{ }the\text{ }solution}$
- The mass percentage is decided by two factors i.e., the mass of the solute and mass of the solution. The formula is given below:
$Mass\ percentage=\dfrac{Mass\text{ }of\text{ }solute}{mass\ of\ solution}\text{ x 100}$
Volume percentage is decided by two factors i.e., Volume of the solute and volume of the solution. The formula is given below:
$Volume\ percentage=\dfrac{Volume\text{ }of\text{ }solute}{volume\ of\ solution}\text{ x 100}$

Note: The moles of the solute can be calculated by two factors i.e., given mass of the solute and molecular mass of the solute. The formula is given below:
$moles=\dfrac{Given\ mass}{molecular\,mass}$