The 20ml of water added to the Erlenmeyer flask is to be previously boiled, deionized water.

The 20ml of water added to the Erlenmeyer flask is to be previously boiled, deionized water. Since water does absorb CO2 from the atmosphere and since CO2 dissolved in water causes it to be slightly acidic, will the use of deionized water that has not been boiled cause the mass of acetic acid in the vinegar to be calculated as too high or too low? Explain.