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Preparation of dilutes solution of acetic acid we have 0.2m and 99.7% purity and 1.05 density
Accepted Answer
To prepare a dilute solution of acetic acid, you'll need to consider its concentration, purity, and density. Here's a step-by-step guide:
1. Calculate the mass of acetic acid needed:
- Determine the desired final concentration of the dilute solution (e.g., 0.1 M).
- Calculate the mass of acetic acid required using its molar mass (60.05 g/mol) and the desired concentration.
- Account for the purity of the concentrated acid (99.7%) by dividing the calculated mass by the purity percentage (0.997).
2. Calculate the volume of concentrated acetic acid needed:
- Use the density (1.05 g/mL) to convert the mass of acetic acid to its volume.
3. Prepare the dilute solution:
- Measure the calculated volume of concentrated acetic acid using a graduated cylinder or pipette.
- Add the concentrated acid to a volumetric flask containing a small amount of distilled water.
- Carefully add distilled water to the flask until the desired final volume is reached.
- Mix thoroughly to ensure a homogenous solution.
Important Notes:
- Always add acid to water, never water to acid, to avoid a dangerous exothermic reaction.
- Wear appropriate safety gear (gloves, goggles) when handling concentrated acids.
- Use distilled water for accurate dilution.
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