Question

What is the percentage of alcohol in the following prescription? Tincture iodine $\quad 10 \mathrm{~mL}(40 \%$ alcohol $)$ Aromatic elixir $\quad 20 \mathrm{~mL}(56 \%$ alcohol $)$ Terpin hydrate elixir $30 \mathrm{~mL}$ ( $4 \%$ alcohol) Sig. $5 \mathrm{~mL}$ for cough.

Name: Problem 19, Chapter 7: Essential Math and Calculations for Pharmacy Technicians
Uploaded: 2020-09-24T21:41:21-08:00
Duration: 3 min
Channel: Catherine Lemar
Description: What is the percentage of alcohol in the following prescription? Tincture iodine 10 mL(40 % alcohol ) Aromatic elixir 20 mL(56 % alcohol ) Terpin hydrate elixir 30 mL ( 4 % alcohol) Sig. 5 mL for cough.

   What is the percentage of alcohol in the following prescription?
Tincture iodine $\quad 10 \mathrm{~mL}(40 \%$ alcohol $)$
Aromatic elixir $\quad 20 \mathrm{~mL}(56 \%$ alcohol $)$
Terpin hydrate elixir $30 \mathrm{~mL}$ ( $4 \%$ alcohol)
Sig. $5 \mathrm{~mL}$ for cough.

Essential Math and Calculations for Pharmacy Technicians

Indra K. Reddy,… 1st Edition

Chapter 7, Problem 19

Instant Answer

Solved by Expert Catherine Lemar

09/24/2020

Step 1

- Tincture iodine: $10 \, \text{mL} \times 0.40 = 4 \, \text{mL}$ of alcohol - Aromatic elixir: $20 \, \text{mL} \times 0.56 = 11.2 \, \text{mL}$ of alcohol - Terpin hydrate elixir: $30 \, \text{mL} \times 0.04 = 1.2 \, \text{mL}$ of alcohol Show more…

Show all steps

Thanks for your feedback!

What is the percentage of alcohol in the following prescription? Tincture iodine $\quad 10 \mathrm{~mL}(40 \%$ alcohol $)$ Aromatic elixir $\quad 20 \mathrm{~mL}(56 \%$ alcohol $)$ Terpin hydrate elixir $30 \mathrm{~mL}$ ( $4 \%$ alcohol) Sig. $5 \mathrm{~mL}$ for cough.

Play audio

Feedback

Catherine Lemar and 61 other educators are ready to help you.

Ask a new question

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Pharmaceutical Compounding

This is the process of preparing personalized medication mixtures based on a prescription. It involves accurately measuring and combining various ingredients, calculating the appropriate concentrations, and ensuring the final result meets the therapeutic needs specified by the healthcare provider.

Percentage Concentration

This concept deals with expressing the concentration of a substance in a solution as a percentage by volume. It defines how much of the solution consists of the substance—in this case, alcohol—compared to the total volume of the solution.

Weighted Average Calculation

When combining multiple solutions with different concentrations and volumes, a weighted average calculation is required to determine the overall concentration. This involves multiplying each solution’s volume by its percentage concentration, summing these values, and then dividing by the total volume.

Please give Ace some feedback