Adilute solution of co2 in water contains 0.000540 g of co2 per 500.0 g of solution. what is the concentration of co2 in ppb?

                  1080 ppb

                            Parts Per Billion is defined as the number of parts of a solute per one billion parts of a solution.

                  ppb  =  (Weight of Solute / Weight of Solution) × 10⁹

Data Given;

                 Weight of Solute (CO₂)  =  0.000540 g

                 Weight of Solution  =  500 g

Putting Values,

                 ppb  =  (0.000540 g / 500 g) × 10⁹

                 ppb  =  1.08 × 10⁻⁶ × 10⁹

                 ppb  =  1080 

          It means if given solution is containing 1 billion particles then 1080 particles in that are of CO₂.

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explanation:

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.