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 :-)
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
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😊
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.
I honestly can't thank you enough Dr! You are a life saver. God bless 🌸
Glad the videos are helpful. Thank you Jenn for watching and for being an active member of the pharmaceutical calculations community.
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 :-)
Thank you Yasir for the comment. Your approach is excellent as well. Keep up the good work.
AMAZING
Thanks.. ..Good Work Dr Danquah
So nice of you Philip. Thank you for watching and for supporting the channel.
How many mL. Of full strength sustacal to prepare 300 mL. of 3/4 strength sustacal solution
Really thank you Dr
Welcome 😊. Thank you Noneta for watching and for the comment.
1/20=200ml/x why isnt 200 in the denominator?isnt the first picture decribes that the total volume is 200ml..?
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
Thank you 👍🏿
Glad you found the video useful. Thank you Mothusi for watching and for the comment.
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😊
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.
@@PharmaceuticalCalculationsEasy thank you so much. I found the solution very straightforward. You are the best 😊
@@PharmaceuticalCalculationsEasy sir this link is not working .please help
@@MiteshPatel-cj1mw Thank you Mitesh for the information. Link is working now.
@@PharmaceuticalCalculationsEasy thank you very much sir..