Give procedure of determining molarity of mass percentage liquid and its density
To determine the molarity of a mass percentage liquid and its density, you can follow the procedure outlined below:
1. Obtain a sample of the liquid whose molarity and density you want to determine.
2. Measure the mass of the liquid sample using a balance.
3. Measure the volume of the liquid sample using a graduated cylinder or volumetric flask.
4. Calculate the mass of solute in the liquid sample by multiplying the mass of the liquid sample by the mass percentage of the solute in the liquid. Mass percentage is calculated by dividing the mass of the solute by the total mass of the liquid sample and multiplying by 100.
5. Calculate the moles of solute in the liquid sample by dividing the mass of solute by the molar mass of the solute. The molar mass can be found in the periodic table.
6. Calculate the molarity of the solution by dividing the moles of solute by the volume of the liquid sample in liters. Molarity (M) is defined as moles of solute per liter of solution.
7. Determine the density of the liquid by dividing the mass of the liquid sample by its volume. The density is expressed in grams per milliliter (g/mL) or grams per cubic centimeter (g/cm³).
Note: In step 6, make sure to convert the volume to liters if it is initially given in milliliters or cubic centimeters.
By following this procedure, you can determine both the molarity and density of a mass percentage liquid sample.