Pharmacy Calculations | Easy Way to Solve Complex Dilution Calculations Questions

[@Gela_Rx]

Thank you so much....I think I understand it better now

[@PharmaceuticalCalculationsEasy]

Glad you found the video helpful Niky. Thank you for watching and for the comment.

[@cometoChrist]

Thank you so much, you are the best! May you please assist me with this question: 'What volume of a 2% w/v solution is required to prepare 200ml of a solution such that a 1 in 20 dilution will produce a 1 in 5000 solution?' The part that confuses me is I am not sure how many mls of the stock solution was taken out for the dilution. And also the 1 in 20 dilution part. Thank you so much Dr

[@PharmaceuticalCalculationsEasy]

Thank you Jenn T for watching and for the comment. See the solution to your question here: kzbin.info/www/bejne/sJucqKxujquhm5I

[@cometoChrist]

@@PharmaceuticalCalculationsEasy Thank you so much Dr, you are a life saver! I can't thank you enough 🌸

[@user-vq7if9pe8o]

This was so helpful!! thankyou so much I really needed this you're the best

[@PharmaceuticalCalculationsEasy]

Glad it was helpful! Thank you Zahraa for watching and for the comment.

[@akoslin7900]

This helped so much. Thank you.

[@PharmaceuticalCalculationsEasy]

Glad you found the video helpful Akos. Thank you for watching and for the comment. Welcome to the pharmaceutical calculations community.

[@ekaetteudoh433]

Thank You so much You are a life saver!

[@PharmaceuticalCalculationsEasy]

Glad the video helped! Thank you Eka for watching and for the comment. Welcome to the Pharmaceutical Calculations community.

[@philipraphael3676]

Thanks for the good explanations ! full package

[@PharmaceuticalCalculationsEasy]

You are welcome! Glad you liked the video. Thank you Philip for watching and for continuously supporting the channel.

[@philipraphael3676]

@@PharmaceuticalCalculationsEasy looking forward to see some upcoming videos

[@Chikku_89]

Thank you for this .Answer should be 71.2ml for 3rd question it was a typo error ?

[@PharmaceuticalCalculationsEasy]

Good catch Sandeep. That is a typo. Units should be mL and not grams (g). Thank you for watching and for the comment.

[@harmandeepkaur6795]

Thank you 🙏🏻

[@PharmaceuticalCalculationsEasy]

Thank you @harmandeepkaur6795 for watching and for the comment.

[@user-oh4hn7dv2o]

Thank you, do you have a video on dilution factors, thanks! :)

[@olubunmiflorencelucas805]

Thank you so much 😊

[@PharmaceuticalCalculationsEasy]

You're welcome 😊. The next video should be coming out soon. Thank you Olubunmi for watching and for the comment.

[@alaakareem2007]

Can you please help me with this question, A pharmacist has to prepare an aqueous solution containing 1 g of benzalkonium chloride in 2 L, by diluting a 10% solution. How many mL of water will be required? A) 190 B) 200 C) 1800 D) 1900 E) 1990

[@PharmaceuticalCalculationsEasy]

Thank you Alaa for watching and for the comment. The correct answer to the question is E. See the solution here: jo.my/efpyqj . Hope this helps. Welcome to the Pharmaceutical Calculations community.

[@ntagesekgale7913]

sir i have a question. when the 100mL of a 1:125 w/v solution is diluted to a certain amount, is the quantity of the solute that is present in the 100mL of a 1:125 w/v solution going to change or it will remain the same?

[@PharmaceuticalCalculationsEasy]

Thank you Ntage Sekgale for watching and for the comment. Regarding your question the answer is yes. The quantity of solute will remain the same after dilution. Only the volume of the solution changes. Hope this helps.

[@YFR6893J]

I was told a good analogy in Chemistry years ago: think of it as Ribena, when you dilute Ribena to whatever is right you still have XmL of Ribena before adding water, only the amount of water changes.

[@tinashechikwenhere644]

Great stuff bro bt too many adds on this video.. everything else z dope

[@PharmaceuticalCalculationsEasy]

Glad you like the video Tinashe. Thank you for watching and for the comment.

[@Taiyella]

Please could you do a video on solving dilution questions that sayd things like is diluted 1 to 4 vs diluted 1 in 4

[@Taiyella]

For exampe : You are required to extemporaneously prepare 300mL of morphine sulphate solution. In order to produce the solution, you dilute morphine sulphate 10mg/5mL solution 1 to 4 with purified water. What is the concentration of morphine sulphate in %w/v in the final prepared product? Give your answer to TWO (2) decimal places.

[@PharmaceuticalCalculationsEasy]

Please see the solution to the example question you asked: jo.my/dilutioncalculations1to4. Hope this helps.

[@PharmaceuticalCalculationsEasy]

Sure, we will add your request to the list of videos to be made. If you already have some questions on the topic, please email them to us as well ([e-mail]).

[@Taiyella]

@@PharmaceuticalCalculationsEasy thanks so much for a speedy response honestly you are fantastic

[@Taiyella]

@@PharmaceuticalCalculationsEasy Also is there a way to solve this via allegation?

[@lilialim8469]

Good day... Please help me solve this problem...An ointment contains 1% w/w calamine. Which of the following is the amount of calamine powder that should be added to 200 g of the ointment to produce a 4% w/w calamine ointment? thank you

[@leilumarie2117]

The question was how many ML of Zephiran. Why was the answer in grams? I got confused. Pls clarify. Thanks!

[@Gela_Rx]

Pls help me with this It's required to produce a drug concentration of 0.2ug/ml in an organ bath of 250ml volume. How much of 1/10,000 solution of the drug should be added to the bath

[@PharmaceuticalCalculationsEasy]

Please see the solution to your question here: jo.my/me1j2b. Keep up the good work.

[@inuuuu5945]

I have a few questions Can i type pls?

[@lilialim8469]

the final question was about the volume of Zephiran but the final answer was in grams?

[@leilumarie2117]

The last part got me confused too.

[@MohammadAhmed-wg5yh]

How you doing Sir? Please, how do we go by these questions. 1. Prepare 200ml of 10% dextrose in water from a 250ml of 50% in 100 parts of dextrose in NaCl infusion and from a 5% parts of 100 ml dextrose in water. 2. Prepare 500ml of 5% dextrose in 0.9 NaCl infusion.. Doctor, I've made corrections to the question 1. And resent a different question. Facing similar problems at the hospital. Come to my aid pls

[@PharmaceuticalCalculationsEasy]

Question is a bit unclear, but here is the solution based on how I interpreted it bit.ly/2FgFfyX . Thank you Mohammad for watching and for the comment.

[@MohammadAhmed-wg5yh]

@@PharmaceuticalCalculationsEasy pls can I get your contact?

[@PharmaceuticalCalculationsEasy]

@@MohammadAhmed-wg5yh [e-mail]

[@MohammadAhmed-wg5yh]

@@PharmaceuticalCalculationsEasy please my question has been edited. I will assistance on them please