A laboratory assistant prepared a potassium chloride...

A laboratory assistant prepared a potassium chloride solution for her class by dissolving 5.34 g of $\mathrm{KCl}$ in 152 $\mathrm{g}$ of water. What is the mass percent of the solution she prepared?

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Key Concepts

Solute and Solvent

In a solution, the solute is the substance that is dissolved, while the solvent is the substance that does the dissolving. Understanding their roles is crucial when computing concentrations like mass percent, as it involves assessing the contribution of each component by mass.

Gravimetric Calculations

Gravimetric calculations involve determining the composition of a mixture based on mass measurements. This method is widely used in chemistry to accurately prepare solutions with specific concentrations, ensuring the reliability and reproducibility of experimental results.

Solution

A solution is a homogeneous mixture composed of two or more substances where the solute is uniformly distributed in the solvent. This concept is fundamental in chemistry because it allows for the consistent and measurable creation of mixtures with desired properties.

Mass Percent

Mass percent is a concentration metric that expresses the mass of a solute as a percentage of the total mass of the solution. It is calculated by dividing the mass of the solute by the total mass of the solution and then multiplying by 100, making it a useful metric for determining how much of the solution's mass arises from the solute.

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