Answer:
To determine the molarity of a solution, you need to know the amount of solute and the total volume of the solution. Molarity is defined as the number of moles of solute dissolved in one liter of solution.
Here is a step-by-step process to calculate the molarity:
1. Determine the amount of solute: This can be given in grams (g) or moles (mol). If the amount is given in grams, you may need to convert it to moles using the molar mass of the solute. The molar mass is the mass of one mole of a substance and is expressed in grams per mole (g/mol).
2. Determine the total volume of the solution: This is usually given in liters (L).
3. Calculate the molarity: Divide the number of moles of solute by the total volume of the solution in liters. This will give you the molarity in moles per liter (mol/L) or Molarity (M).
Here is the formula for calculating molarity:
Molarity (M) = moles of solute / volume of solution (in liters)
Let's consider an example:
Suppose you have 0.1 moles of solute and a total volume of 0.5 liters of solution.
Molarity (M) = 0.1 moles / 0.5 L = 0.2 M
In this example, the molarity of the solution would be 0.2 M.
Remember to use the correct units and ensure consistency between the units of moles and liters to obtain an accurate molarity value.