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Dilution and Concentration 

Pharmaceutical Calculations
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21 окт 2024

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Комментарии : 63   
@nielification20
@nielification20 9 лет назад
The way you explain things on your videos is very clear, direct to the point and easy to understand. So far, this is the best channel for pharmacy calculations. Thanks for the great help Sir!
@lyrictroy6717
@lyrictroy6717 3 года назад
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@nathanares5233
@nathanares5233 3 года назад
@Lyric Troy Instablaster :)
@lyrictroy6717
@lyrictroy6717 3 года назад
@Nathan Ares thanks for your reply. I got to the site on google and Im waiting for the hacking stuff now. I see it takes quite some time so I will reply here later when my account password hopefully is recovered.
@lyrictroy6717
@lyrictroy6717 3 года назад
@Nathan Ares It worked and I actually got access to my account again. Im so happy:D Thank you so much, you really help me out!
@nathanares5233
@nathanares5233 3 года назад
@Lyric Troy Glad I could help :)
@sciencelearnremember
@sciencelearnremember 9 лет назад
This is really a mind-blowingly fantastic video! I love how you explain each step. The more explanation, the better!!!
@nii3589
@nii3589 4 месяца назад
Is the 1:500w/v equivalent to density concentration? If that's the case, could we have used density "conc= mass/volume" to solve this problem. Thank you for your presentation too. Very helpful. From 🇬🇭
@PharmaceuticalCalculationsEasy
@PharmaceuticalCalculationsEasy 4 месяца назад
Thank you @nii3589 for watching and for the comment. Yes, the 1:500w/v may be considered as a mass or density concentration and you could use the "conc= mass/volume" to solve the problem. Hope this helps. Keep up the good work.
@nii3589
@nii3589 4 месяца назад
Very helpful.
@vmoreno-blake2916
@vmoreno-blake2916 4 года назад
Why can't you be our instructor. You are so clear and step by step. You have taught me more in one night than I have in the last month of class. Keep up the good work
@PharmaceuticalCalculationsEasy
@PharmaceuticalCalculationsEasy 4 года назад
Thanks for watching and for the comment. Keep up the good work.
@cynthiaamaechi9536
@cynthiaamaechi9536 10 месяцев назад
Wow the only video I understand concerning dilutions
@PharmaceuticalCalculationsEasy
@PharmaceuticalCalculationsEasy 9 месяцев назад
Thanks for tuning in and for your lovely feedback, @cynthiaamaechi9536!
@JeffSantos-x4g
@JeffSantos-x4g 2 месяца назад
May I ask a question Sir? Where did the 100mL came from in the last problem of osmolarity? Was that an assumption that for every 0.9g of NaCl there is 100mL in ratio? And also, I didnt mean to offend you Sir, but pls could you include the derivations of the formula in your videos? Some might wonder where did that formula came from (not all can understand it immediately). Thank you Sir, God Bless you.
@vanesaperez7495
@vanesaperez7495 6 лет назад
omg I wish you were my teacher, I love how you gave a visual example
@fahadabdulrazaq670
@fahadabdulrazaq670 4 года назад
You're formidable genius teacher may Allah gives you more knowledge
@PharmaceuticalCalculationsEasy
@PharmaceuticalCalculationsEasy 4 года назад
Thanks Fahad for watching and for the kind comment.
@fahadabdulrazaq670
@fahadabdulrazaq670 4 года назад
@@PharmaceuticalCalculationsEasy how about dose calaculation, Sir
@PharmaceuticalCalculationsEasy
@PharmaceuticalCalculationsEasy 4 года назад
@@fahadabdulrazaq670 Here are two videos on dose calculations: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-abFJrf-_kZQ.html , ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-O7z6B7I9NAQ.html . There are a few more on the channel.
@TheCc064
@TheCc064 Год назад
On 15:26, could you remind me how you got 200g again? Thanks again for sharing these.
@PharmaceuticalCalculationsEasy
Thank you TheCc064, for your comment and for watching our video! We're thrilled to have you as a part of our community and look forward to creating more content that you'll love. Here is how you get the 200 g. 10% w/v x 2 L. Since, 2 L is 2000 mL, this implies ((10g/100 mL) x 2000 mL) = 200g. Hope this helps.
@moladebadero4082
@moladebadero4082 8 лет назад
This is the best explained pharmaceutical calculations i have ever had in my life, thank you very much Sir for this, my mind is so at ease because i have an exam in 10 days, and i feel much better. Do you have videos on molarity and normality and molality?
@fahadabdulrazaq670
@fahadabdulrazaq670 4 года назад
Wonderful understanding!!!!!!!.....It's good at all
@emmemccray7281
@emmemccray7281 4 года назад
Thank you so much. Continued blessings!
@PharmaceuticalCalculationsEasy
@PharmaceuticalCalculationsEasy 4 года назад
Thank you Emme for watching and for your kind words.
@salisusuleiman8779
@salisusuleiman8779 Год назад
Hello sir, Please guide me through this question; How many ml of water should be added to 200 ml of a 1:125 w/v solution to make a solution such that 50 ml diluted to 100 ml will provide a 1:4000 dilution?
@ntuuyonaeem6221
@ntuuyonaeem6221 4 года назад
WOW this is amazing u a good at convincing and things are made easy with in a limitted time thank you, keep us posted
@PharmaceuticalCalculationsEasy
@PharmaceuticalCalculationsEasy 4 года назад
Thank you Ntuuyo for your comment and for watching.
@philipraphael3676
@philipraphael3676 4 года назад
@@PharmaceuticalCalculationsEasy bro can in get your email I have a question needing a urgent help!
@PharmaceuticalCalculationsEasy
@PharmaceuticalCalculationsEasy 4 года назад
@@philipraphael3676 info@rxcalculations.com
@philipraphael3676
@philipraphael3676 4 года назад
@@PharmaceuticalCalculationsEasy thanks
@Pharmieeeee
@Pharmieeeee 11 месяцев назад
How is it possible to have added 0g grams of petroleum? Wouldn't that effectively mean you added nothing?
@thehusbandofstardomfamily6152
@thehusbandofstardomfamily6152 4 года назад
14% C1 ×Q1 (red) >>product (blue) Q2 Petrolatum has 0% sulfur for dilution product C2 final product(purple) has 10%×60g= how much sulfur is there and how much you will end with, Q1(original product)10%×60g/14%=42.9g Q2 (final product dilution)60g-42.9g=17.1g
@jefersongueiros7414
@jefersongueiros7414 4 года назад
congratulations for the work presented here.
@PharmaceuticalCalculationsEasy
@PharmaceuticalCalculationsEasy 4 года назад
Thank you Jeferson for watching and for the kind words. Glad it helped.
@sr-mh4fy
@sr-mh4fy 5 лет назад
For trituration can u not do 10 x 100 I thought the 1 was the drug and 10 was the trituration part of ratio
@dr.ozmo.5618
@dr.ozmo.5618 10 лет назад
our teacher is giving us your video for exam :D :D
@nukaitns
@nukaitns 9 лет назад
Mohamed Hammood he is still doing it Cem hoca :D
@dr.ozmo.5618
@dr.ozmo.5618 9 лет назад
Na Ka hahah yes :D :D how did you know that ?? :D
@nukaitns
@nukaitns 9 лет назад
I am ibrahim can :D
@thehusbandofstardomfamily6152
@thehusbandofstardomfamily6152 4 года назад
14% sulfur C1×Q1(ORIGINAL) dilute adding petrolatum that has a lower amount of sulfur that is used. 10% =C2 × Q2(FINAL PRODUCT DILUTED OR STRENGTHENED ) C1=14% Q1=Q2 (0%)(10%)
@thehusbandofstardomfamily6152
@thehusbandofstardomfamily6152 4 года назад
Weight/Weight or Weight/Volume W/V 0.95Q1=200g Q1 200g/0.95 Q1=210.53 Volume of Sulfuric acid in ML 210.53/1.82=115.67ml (dividing qty by density)
@thehusbandofstardomfamily6152
@thehusbandofstardomfamily6152 4 года назад
Volume/Volume 85%×500ml=50%×Qr 85%×500ml/50%=8500ml Volume of water 8500ml-500ml=3500ml how much water should be mixed.
@pwincess0101
@pwincess0101 8 лет назад
hello sir thank you so much for these videos they are so helpful please put up some more when you can! thank you!
@PharmaceuticalCalculationsEasy
+pwincess0101 Thank you for your comments. What are some of the topics you would like to see covered? I would be happy to do videos on those topics too. Also, you may check out www.rxcalculations.com for additional resources. Take care and all the best.
@pwincess0101
@pwincess0101 8 лет назад
+Pharmaceutical Calculation thank you for replying!! and thank you for recommending that website it is really good! if possible could you please cover displacement volumes and values and infusion rates. thank you!
@samuelsarfoadu1407
@samuelsarfoadu1407 5 лет назад
That's so fantastic. I now understand better.🤓🤓🤓
@yangjela11
@yangjela11 2 года назад
Thank you so much!
@PharmaceuticalCalculationsEasy
@PharmaceuticalCalculationsEasy 2 года назад
Glad you found the video helpful Aju. Welcome to the Pharmaceutical Calculations community.
@hevinkaradakh4542
@hevinkaradakh4542 5 лет назад
Hi! Do you mind replying back to how you would answer this question: What weight of a substance is required to make 375mL of a solution such that 25mL diluted to 2L will give a 1 in 1000 solution? It's the wording of the question that confuses me, and i cant seem to get the to the right answer. the answer is 30 But i dont know how to calculate it
@PharmaceuticalCalculationsEasy
Hello Hevin: See solution to the question here ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Wl3xTVIb6ms.html. There is some introduction in the beginning to help understand what is going on in the question. However, you can go straight to 3:27 minutes if you just want to see the worked out solution. Hope this helps.
@thehusbandofstardomfamily6152
@thehusbandofstardomfamily6152 4 года назад
STRENGTHENED product to make more concentrated, 4% Coal tar ×36g =pure coal tar 100%xQ2 =Qf (4)36g + (100%)Q2=(10%)(36g+ Q2) 144g+100Q2=360g+10Q2 90Q2=360g-144g=216g 216g /90=2.4g how much of the 100% coal tar you will use to concentrate/strengthen the product.
@ahmadfares5243
@ahmadfares5243 2 года назад
Great 👍
@PharmaceuticalCalculationsEasy
@PharmaceuticalCalculationsEasy 2 года назад
Thank you 👍
@maryvanesssa
@maryvanesssa 6 лет назад
where did you get the 200g in 15:30? it is not clear
@PharmaceuticalCalculationsEasy
The 200 g is from the 10% w/v of 2L (2000 mL). So you have ((10g/100 mL) x 2000 mL) = 200 g. Also see 15:01. Hope this helps.
@maryvanesssa
@maryvanesssa 6 лет назад
Pharmaceutical Calculations Thanks. I already figured it out.
@thehusbandofstardomfamily6152
@thehusbandofstardomfamily6152 4 года назад
Required 5mg of drug 100mg of triturstion=1:10×100=10 mg of drug, 90mg of lactose 100mg of drug in 10ml of injection 10ml/10mg=X/5mg X=5ml
@BKai714
@BKai714 4 года назад
The last trituration problem is worded so poorly that makes it unnecessary difficult to picture the problem. I was so confused 🤪
@PharmaceuticalCalculationsEasy
@PharmaceuticalCalculationsEasy 4 года назад
Hello Bryan. Yes, those trituration questions are typically worded that way. Let me know if more solved examples will help. Thanks for watching and for the comment.
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