How many milliliters of 5 % zinc chloride are required to make a 150 ml isotonic solution?

Name: Problem 25, Chapter 9: Essential Math and Calculations for Pharmacy Technicians
Uploaded: 2021-06-22T19:34:35-08:00
Duration: 1 min 58 s
Channel: Dr. Satish Ingale
Description: How many milliliters of 5 % zinc chloride are required to make a 150 ml isotonic solution?

step 1 Hi everyone so in this question they ask how many millit liters of water must be added to 150 ml

How many milliliters of 5 % zinc chloride are required to...

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Key Concepts

Percentage Concentration

This concept involves expressing the amount of solute in a given volume of solution as a percentage. For instance, a 5% solution means that there are 5 units of solute per 100 units of total solution, often interpreted as 5 grams of solute in 100 milliliters of solution. Understanding percentage concentration is crucial for calculating how much of a stock solution contains the desired amount of solute when preparing dilutions.

Dilution Principle

The dilution principle is founded on the conservation of the amount of solute before and after dilution. It is typically expressed by the relation C?V? = C?V?, where C? and V? represent the concentration and volume of the stock solution, and C? and V? represent the concentration and volume of the diluted solution. Mastery of dilution calculations is essential for accurately preparing solutions with a specific target concentration.

Isotonic Solutions

An isotonic solution is defined as a solution that has the same osmotic pressure as another solution, typically body fluids, thereby preventing the net movement of water across cell membranes. In pharmaceutical and medical contexts, preparing isotonic solutions is critical to ensure biocompatibility and safety in applications such as intravenous fluids or other treatments.

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