Last one. Describe how you would prepare 100ml of a solution that is 22% acetic acid by volume?
To prepare 100ml of a 22% acetic acid solution by volume, you will need to follow these steps:
1. Convert the desired percentage concentration to a decimal by dividing it by 100. In this case, 22% becomes 0.22.
2. Determine the amount of acetic acid (in milliliters) needed for the solution. Multiply the desired volume of the solution (100ml) by the decimal concentration (0.22).
Required acetic acid volume = 100ml × 0.22 = 22ml
3. Measure out 22ml of acetic acid using a graduated cylinder or pipette. Make sure to handle the acetic acid carefully, as it can be corrosive and may have a strong odor.
4. Add the measured volume of acetic acid to a suitable container, such as a beaker or flask.
5. Fill the container with a solvent or diluent to reach a total volume of 100ml. The choice of solvent will depend on the specific requirements of the experiment or application. Common solvents used with acetic acid include water or ethanol.
6. Mix the solution thoroughly to ensure that the acetic acid is uniformly distributed throughout the solvent.
It is important to note that handling acetic acid requires caution, as it is an irritant and can be hazardous if not handled properly. Always wear appropriate protective equipment, such as gloves and safety goggles, and work in a well-ventilated area.