Final answer:
To calculate average concentration, divide the total amount of solute by the total volume of the solution. You can also convert the mass of solute and volume of solution to moles and liters, respectively, and divide the moles of solute by the liters of solution to get the molarity. Concentration given in parts per million (ppm) can be converted to molarity by dividing the ppm value by 1000.
Step-by-step explanation:
The average concentration can be calculated by dividing the total amount of solute by the total volume of the solution. For example, if you have 10 grams of solute dissolved in 100 mL of solution, the average concentration would be 10 grams/100 mL = 0.1 grams/mL. This can also be expressed as 1000 mg/mL.
Another way to calculate average concentration is by converting the given mass of solute and volume of solution to moles and liters, respectively. Then, divide the moles of solute by the liters of solution to get the molarity, which is a measure of concentration in moles per liter.
In some cases, the concentration may be given in parts per million (ppm). To convert ppm to molarity, divide the ppm value by 1000. For example, if the concentration is 500 ppm, the molarity would be 500/1000 = 0.5 M.