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What is the concentration in PPM\text{PPM} of a solution made from 20.1 g20.1\,\text{g} of KCl\text{KCl} and 522 g522\,\text{g} of water?

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Full solution

Q. What is the concentration in PPM\text{PPM} of a solution made from 20.1 g20.1\,\text{g} of KCl\text{KCl} and 522 g522\,\text{g} of water?
  1. Find Total Mass: First, we need to find the total mass of the solution by adding the mass of KCl and the mass of water.\newlineTotal mass = mass of KCl + mass of water\newlineTotal mass = 20.1 g+522 g20.1\,\text{g} + 522\,\text{g}
  2. Calculate Addition: Now, let's do the addition to find the total mass.\newlineTotal mass = 20.1g+522g=542.1g20.1\text{g} + 522\text{g} = 542.1\text{g}
  3. Calculate PPM: Next, we calculate the concentration in parts per million (PPM). PPM is calculated as the mass of the solute (KCl) divided by the total mass of the solution, then multiplied by 1,000,0001,000,000.
    PPM=mass of KCltotal mass of solution×1,000,000\text{PPM} = \frac{\text{mass of KCl}}{\text{total mass of solution}} \times 1,000,000
    PPM=20.1 g542.1 g×1,000,000\text{PPM} = \frac{20.1\,\text{g}}{542.1\,\text{g}} \times 1,000,000
  4. Find PPM: Now, let's do the division and multiplication to find the PPM.\newlinePPM = (20.1 g/542.1 g)×1,000,000(20.1\,\text{g} / 542.1\,\text{g}) \times 1,000,000\newlinePPM = 0.03707×1,000,0000.03707 \times 1,000,000

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