An aqueous solution that contains 285 ppm of potassium nitrate (KNO3) is being used to feed plan

step 1 so we need to find amount of solution which has to be needed to prepare two litter of solution c

An aqueous solution that contains 285 ppm of potassium...

An aqueous solution that contains 285 ppm of potassium nitrate $\left(\mathrm{KNO}_{3}\right)$ is being used to feed plants in a garden. What volume of this solution is needed to prepare $2.0 \mathrm{~L}$ of a solution that is $75 \mathrm{ppm}$ in $\mathrm{KNO}_{3}$ ?

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Key Concepts

Dilution Equation (C1V1 = C2V2)

The dilution equation is a fundamental tool in solution chemistry that shows the relationship between the concentrations and volumes of a stock solution and a diluted solution. It is based on the principle that the total amount of solute remains constant during the dilution process, allowing one to calculate the volume of stock solution required to achieve a desired concentration in a new volume.

Conservation of Solute Mass

Conservation of solute mass is an essential concept in dilution processes, asserting that the quantity of solute does not change when a solution is diluted. Instead, only the concentration changes because the solute is distributed throughout a larger volume, which is crucial for setting up and solving dilution calculations accurately.

Parts per Million (ppm)

Parts per million (ppm) is a unit of concentration that denotes the number of parts of a solute per one million parts of the solution. In aqueous solutions, it is often equivalent to mg of solute per liter of solution (mg/L) because of the water's density, making it a convenient measure for describing very low solute concentrations.

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