Pharmacy Calculations | Best Way to Solve This Tricky Dilution Concentration Question

Pharmacy calculations sometimes require calculations involving stock solutions. While these calculations can be straightforward, there are some tricky stock solutions calculations that are often problematic for pharmacy students to solve. For these questions, the strength of the diluted portion of a solution is defined, but the strength or volume of the concentrated stock solution used to prepare it must be determined.
In this video you will learn the best way to solve a tricky stock solution calculations questions using an important question asked by a viewer.
👉 Visit our website RxCalculations.com for free quizzes, video lectures, apps, online events: www.rxcalculat...
Share this video:
~~~~~~~~~~~
• Pharmacy Calculations ...
Subscribe to my channel and get more tips, tricks and solved problems:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/ @pharmaceuticalcalcula...
Get additional Practice:
~~~~~~~~~~~~~~~
Pharmaceutical Calculations: 1001 Questions with Answers: www.rxcalculat...
NAPLEX Question Bank: www.rxcalculat...
Join Our Social Media Community:
~~~~~~~~~~~~~~~~~~~~~~~
website: www.rxcalculat...
facebook: / pharmaceuticalcalculat...
twitter: / rxcalculations
Instagram: / rxcalculations
Additional Resources:
~~~~~~~~~~~~~~
- Pharmaceutical Calculations by Ansel: amzn.to/2O2mTn7
- Pharmaceutical Calculations by Zatz: amzn.to/2O3n4yH
- Pharmaceutical Calculations by Agarwal: amzn.to/2O13vqv
Download our FREE pharmaceutical Calculations App:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
NAPLEX® Calculations Prep from the Google Play Store: play.google.co...
#pharmaceuticalcalculations, #pharmacycalculations, #dilutionconcentration, #RxCalculations
About RxCalculations:
~~~~~~~~~~~~~~
RxCalculations helps you master pharmaceutical calculations. We make it so you never have to worry about failing an exam or compromising patient safety because of a calculations error. RxCalculations is a leading global educational service platform focused on developing top quality pharmaceutical calculations products to help prospective pharmacists and health care professionals all over the world resolve one of the biggest challenges related to their profession.
Our top quality products include affordable courses, personal consults, books, video tutorials, timed quizzes and apps designed to make you an expert in solving any pharmaceutical calculations question. We also have the largest pharmaceutical calculations online question bank which has over 1000 questions covering every important calculations topic as well as step-by-step video solutions. With all these resources at your disposal we have all you need to not only master pharmacy calculations but ace every test as well as passing your board exams.

[@yasirjarad7480]

Th answer can be shorter as below:
The concentration of final diluted solution is 1 in 5000 which means 0.02g in 100 mL or 0.02 % (w/v).
Because this solution is diluted 20 times (1 in 20 ), the original concentration will be 0.02 X 20 = 0.4 % (w/v).
And now by applying the equation c1 X v1 = c2 X v2:
2% X v1 = 0.4% X 200 mL = 40 mL :-)

[@PharmaceuticalCalculationsEasy]

Thank you Yasir for the comment. Your approach is excellent as well. Keep up the good work.

[@qusaeelsayed7581]

AMAZING

[@cometoChrist]

I honestly can't thank you enough Dr! You are a life saver. God bless 🌸

[@PharmaceuticalCalculationsEasy]

Glad the videos are helpful. Thank you Jenn for watching and for being an active member of the pharmaceutical calculations community.

[@bel-rr5cw]

1/20=200ml/x why isnt 200 in the denominator?isnt the first picture decribes that the total volume is 200ml..?

[@ivoryrodriguez5138]

How many mL. Of full strength sustacal to prepare 300 mL. of 3/4 strength sustacal solution

[@philipraphael3676]

Thanks.. ..Good Work Dr Danquah

[@PharmaceuticalCalculationsEasy]

So nice of you Philip. Thank you for watching and for supporting the channel.

[@user-nu6oh9bi4i]

i used this method to work out the following question-a stock solution containing chlorphenamine is used to prepare a solution such that when the solution is diluted 1 in 5, a 1 in 100 solution is produced. What volume of the intermediate solution is required to prepare 5L of the final solution. Using your method i keep getting 1000ml but the answer is 250ml. Please can you help me

[@nonetamahmoud9192]

Really thank you Dr

[@PharmaceuticalCalculationsEasy]

Welcome 😊. Thank you Noneta for watching and for the comment.

[@mothusimanaka8060]

Thank you 👍🏿

[@PharmaceuticalCalculationsEasy]

Glad you found the video useful. Thank you Mothusi for watching and for the comment.

[@olubunmiflorencelucas805]

Hi Dr, please kindly solve this on your platform. "A cream contains 1.5g of hydrocortisone in 30g of cream. How much hydrocortisone must be added to make the final product contain 10% hydrocortisone. Thank you😊

[@PharmaceuticalCalculationsEasy]

Here is the solution to the question: jo.my/y0hncg. The accompanying video will be published soon. Thank you Olubunmi Florence for being an active member in the pharmaceutical calculations community.

[@olubunmiflorencelucas805]

@@PharmaceuticalCalculationsEasy thank you so much. I found the solution very straightforward. You are the best 😊

[@MiteshPatel-cj1mw]

@@PharmaceuticalCalculationsEasy sir this link is not working .please help

[@PharmaceuticalCalculationsEasy]

@@MiteshPatel-cj1mw Thank you Mitesh for the information. Link is working now.

[@MiteshPatel-cj1mw]

@@PharmaceuticalCalculationsEasy thank you very much sir..