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A chemist has a 50 mL beaker of a 10% solution.

User Msquared
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Final answer:

The question pertains to the field of chemistry, specifically focused on the preparation and dilution of chemical solutions, relevant for both laboratory and medical applications. It involves calculations of concentrations and volumes, which are essential skills for chemists and medical professionals working with IV solutions.

Step-by-step explanation:

The question involves the preparation of chemical solutions, calculation of concentrations, and understanding of dilution principles, which are common tasks in chemistry. When a chemist has a 50 mL beaker of a 10% solution, they might need to dilute it to a desired concentration for various applications, including medical purposes. Dilution calculations often use the formula M1V1 = M2V2, where M1 and V1 are the molarity and volume of the initial solution and M2 and V2 are the molarity and volume of the final diluted solution. For example, if you want to prepare a 0.50% KCl solution from a 10% stock solution and achieve a final volume of 100 mL, you would calculate the volume of stock solution needed (V1) using the equation (10%)V1 = (0.50%)(100 mL), which results in V1 = 5 mL. This calculation is useful in creating IV solutions in medical settings where accuracy is critical, but slight variations in total volume are often acceptable. Additionally, understanding the mole concept and molarity is crucial for titrations and calculating ionic concentrations in mixtures of solutions.

For instance, when the total volume of a mixture of NaCl, KOH, and HCl solutions is made to be 100.0 mL, the chloride ion concentration ([CI]) in the final solution can be determined by considering the volume and molarity of each initial solution and using stoichiometry for the total mixture volume.

User Amorphous
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