Hi, Sir. You have no idea how long it took me to find the answers to my questions. Your videos are rare. I hope your subscribers will continue to increase. Thank you so much for sharing your knowledge. Best regards from the Philippines.
Outstandingly well explained! You explained very well why these units are being used and in contrast to other lectures you wrote the units down. Thank you
Hello there , can you please also post another video for pharmaceutical calculations based on pharmacokinetic - volume of distribution, t half etc , that would be great . I was planning to give pharmacy exam in Canada , they ask lots of calculations based off pharmacokinetic . I really liked your simplified way of teaching . Thank you so much for helping students around globe .
thank you so much for your good explanation. thanks for you, i could understand milliequivalent in spite of this lesson is difficult as i was thinking but now everything is easy.
May I ask some question? the unit of MW that we know is g/mol so we need to do a calculation to change the unit first (21:40), but why in some questions you automatically change the unit to mg/mmol (24:16) ?
Thank you @faizahazman1528 for watching and for the comment. Ideally you should do the conversion from g/mol to mg/mmol. However, the way the conversion turns out you will end up having the same numeric value for the mg/mmol conversion as you did for the g/mol. So you could use the value given for the MW in g/mol but recognize that you are working in mg/mmol for the mEq calculations. Hope this helps.
For every other question, you found the valence of the compound but not for Li2CO3. What is the valence of that compound? Is it 1 or 2? The ion has 1+ charge, so its one, but what about the entire compound?
I'm just wondering (sorry, this is a silly question), how come for the lithium example you x4 as there are 4 300mg tablets(to find out the total wt), but the MW wt is not x 4? Kinda confused by that (hope my question makes sense)
Thank you Bimba for watching and for the comment. Your question is a valid one and highly appreciated. The mass of lithium carbonate depends on the number of tablets and that is why we multiply by 4 since there are four tablets. However, the molecular weight of a compound depends on the atoms present in the compound and is obtained by adding the atomic weight values of the atoms in a compound. Hence, the molecular weight of lithium carbonate is independent of the number of tablets and that is why we do not multiply by 4. Hope this helps.
Could I please know why the valence of the compound of MgSO4 is 2? Sorry that I do not know about it. Since that the valence of Mg2+ is 2 positive, and the valence of (SO4)2- is 2 negative, should the valence of MgSO4 cancel out? I am confused here. Thank you!
The valence of a compound is either the absolute charge on the cation or anion that is produced when the compound dissociates in an aqueous environment. So for MgSO4 the cation is Mg2+ and the anion is (SO4)2-. Hence, you may find the valence by taking the absolute of +2 (from Mg2+) which is 2 or the absolute of -2 (from (SO4)2-) which is also 2. Thus the valence of MgSO4 is 2. Kindly note that you do not add or subtract the charges on the ions. Hope this helps.
Thank you Hany for watching and for the question. Generally, for a given chemical compound, the milliequivalents of cation equals the milliequivalents of anion equals the milliequivalents of the chemical compound. Hence, the mEq of Na+ will be 104.65 mEq which is the same as Na2HPO4.H2O. Hope this helps.
i am having trouble with my physiology question, the concentration of calcium ion in extracellular fluid is 11mEq/L . The cnmcentration of calcium ion intracellular fluid is 8.8% . how to convert from mEq/L to percentage?
can you please explain why or how "milliequivalent value of Na+ ion equals the milliequivalent value of disodium hydrogen phosphate -- Na2HPO4.7H2O. When we want to calculate the mEq of Na+ in Na2HPO4.7H2O but not just mEq of Na+ itself?
Thank you Sylvia for watching and for the comment. Please see the first question in this video (th-cam.com/video/KGe2_V6BFSA/w-d-xo.html) where your question is addressed in the solution. Kindly take a look at it and let me know if more clarification is needed. Keep up the good work.
Hi can you please solve this question for me Sulindac (weak acid) is a non-steroidal anti- inflammatory drug with a pa of 4.2. What is the pH of a solution containing 0.1M sulindac sodium (the sodium salt)?
Calculate: a patient needs a infusion with 15 mmol of dibasic sodium phosphate in 150 ml or normal saline. How many mg of dibasic sodium phosphate do you need to make this infusion? The molecular weight of (Na2HPO4) is 142
Magnesium chloride is available as magnesium chloride hexahydrate in an an injectable solution that supplies 1.97 mEq of magnesium per milliliter. W hat is the percent strength of magnesium chloride hexahydrate in this solution? in what way I could answer this?
Thank you Alma for watching and for the comment. There are more practice questions here www.rxcalculations.com/milliequivalents-quiz/ . You can also watch step-by-step video solutions to the free quiz here: th-cam.com/video/L0v4ovohr5Y/w-d-xo.html .
Thank you Allen for watching and for the comment. Here is the solution to the question: jo.my/ssxrwr. The accompanying video will be published soon. Happy studying.
This video really helped simplify these equations for me, so thank you. I do still have one problem I haven't been able to figure out though, even with this video. When asked how many milligrams of calcium are in 1 gram of calcium chloride? I keep getting 360 mg, but everywhere I look the answer is 273 mg and there is no explanation, so I don't understand what I am doing wrong. Can anyone please help me?
Can anyone helps me with the following question? Thanks!! What is the mEq of magnesium sulfate if D5W 1000mL contains MgSO4 USP 20 mEq. The molecular weight for magnesium sulfate, USP = MgSO4 * 7H2O is 246.47. Should I use 246.47 as the MW or should I only use the MW of magnesium sulfate (120) to solve for mEq?
You need to balance the stoichometric equation and take the absolute of the highest charge on either ion. Hope I understood your question correctly and this helps.
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Hi, Sir. You have no idea how long it took me to find the answers to my questions. Your videos are rare. I hope your subscribers will continue to increase. Thank you so much for sharing your knowledge. Best regards from the Philippines.
Glad you found the videos helpful Chem Signapan. Thank you for watching and for the kind comment. Keep up the good work and happy studying.
I went through multiple textbooks trying to understand this. This video explained it very well! Thank you so much
Thank you Sir.. your videos are like sunshine to a calculation-frustrated mind :) You really make a difference!
Very instructive video. Enough varied examples provided to clearly understand theory and calculations.
Thank you👍👍👍
Glad you found the video helpful! Thank you Neranjan for watching and for the kind comment.
Outstandingly well explained!
You explained very well why these units are being used and in contrast to other lectures you wrote the units down. Thank you
Thank you @jeannettewilke205 for watching and for the kind comment.
Thank you we learn so much..!! There's less teachers in yt that teach pharcal and thank you for teaching this to us !!
Thank you Learn Through It for watching and for the comment.
I'm learning so much from your videos; subscribed!
Welcome to the pharmaceutical calculations family! Glad you find the videos helpful. Keep up the good work.
Really! Really! Easy!!! 😉.... Attitude 💪 🔥 I love that ❤... You're the best. Attitude makes the ride smoother.
Thank you, @flemmingmiyoba for watching and for the comment.
Thankyou so so much i have really understood all the concepts in this video
Glad you found the video helpful Bwowe. Thank you for watching and for the comment.
Hey man, great video! We have a Pharm calc test tomorrow, I'll share this with my class! We appreciate it!
That intro song really turn my frown to a smile, love you lessons
Thank you Janine for watching and for the comment. Glad you like the into song as well. Keep up the good work.
This video is quite simplified
Thank you sir
Thank you so much for uploading this video it’s a big help. 🙏🏻
Glad you found the video helpful. Thank you for watching and for the comment.
This is incredibly helpful and understandable and I can't thank you enough for making this video.... hope you are doing well wherever you are ❤
Thank you so much
I now get to understand how to solve milliequivalent
Thank you, @VictoryIyorza for watching and for the kind comment.
Informative and well explained. Thank you.
Thank you for the comment.
Well explained 🙏🙏
kindly asking for the current lecture Slides
Thank you is not enough!!! Really you are amazing you helped me a lot with pharmaceutics. You're great i have no other words i wish you the best
God bless you! Please upload more videos like as it could be life saver ....
Thank you sir! This made my concept very clear !!🎉
you make it very simple. great job. thank you very much
Thank you so much,it help way more than you think.
Glad you found the video helpful Substantia Perforata Anterior. Thank you for watching and for the comment.
Thank you very much for the explanation from Iraq 🇮🇶
You are welcome. Glad the video helped. Thank you Doctor of Pharmacy for watching and for the comment.
@@PharmaceuticalCalculationsEasy I got excellent score by watching this video God bless you. Thank you 🌹🌹🌹🌹🌹
@@doctorofpharmacy8192 Congratulations! Keep up the good work.
Hello there , can you please also post another video for pharmaceutical calculations based on pharmacokinetic - volume of distribution, t half etc , that would be great .
I was planning to give pharmacy exam in Canada , they ask lots of calculations based off pharmacokinetic . I really liked your simplified way of teaching .
Thank you so much for helping students around globe .
This was so helpful. I'm so glad I stumbled on your page. Kudos!
Glad the video was helpful! Thank you for watching and for the comment.
You made it seem so easy for me now youre the best 😭
This was a really good refresher course! Thank you.
Thank you Tiffany for the comment and for watching.
Thank you so very much for these videos, I’m hopeful again 🙏🏽🙌🏽
Glad the video are helpful. Thank you Lelebrigitar for watching and for the comment.
thank you so much for your good explanation. thanks for you, i could understand milliequivalent in spite of this lesson is difficult as i was thinking but now everything is easy.
Glad you found the video helpful. Thank you for watching and for the comment.
Can I ask you question where is the lecture of molarity and molality and mole fraction ?
This video is gold.
Thank you Dance Queen for watching and for the comment. Welcome to the pharmaceutical calculations community.
love the opening music
Glad you liked the music intro Yoga. Thank you for watching and for the comment.
Good explanations Sir , we need more videos on other matters
Thank you, @keplerbg-o3a820 for watching and for the comment. Please share topics you would like to see.
@@PharmaceuticalCalculationsEasy Dosage calculations based on BSA
@@Professor_Gaoboi03 Please check out our video on dosage calculations based on BSA th-cam.com/video/O7z6B7I9NAQ/w-d-xo.htmlsi=1W6EBgek2W5wbXmn/
Thanks you sir, you have made me to understand
Thank you, @DambyoBrian-gy6mr, for watching and for the comment.
Thank you so much for this amazing video
Realy helped me
Glad you found the video helpful. Thank you for watching and for the comment.
شون أكدر احصل الترجمه🥺
How many mmols of NaOH will be used in the titration with 33ml of 3 M HCl to form NaCl and water?
Thanks, i've looked for this video for a long time
May I ask some question? the unit of MW that we know is g/mol so we need to do a calculation to change the unit first (21:40), but why in some questions you automatically change the unit to mg/mmol (24:16) ?
Thank you @faizahazman1528 for watching and for the comment. Ideally you should do the conversion from g/mol to mg/mmol. However, the way the conversion turns out you will end up having the same numeric value for the mg/mmol conversion as you did for the g/mol. So you could use the value given for the MW in g/mol but recognize that you are working in mg/mmol for the mEq calculations. Hope this helps.
This is fantastic! Really appreciate the effort going into these videos! Subscribed!
Thank you so much for your videos..
You are welcome. Thank you for watching and for the comment.
For every other question, you found the valence of the compound but not for Li2CO3. What is the valence of that compound? Is it 1 or 2? The ion has 1+ charge, so its one, but what about the entire compound?
Thank you hydrologic modeling for watching and for the comment. The valence of Li2CO3 is 2. Hope this helps.
Dude this is so helpful
Thank you!
Glad it helped! Thank you for watching and for the comment.
Well explained
perfect explanation, thanks a lot
Thank you MatchMedicines for watching and for the comment.
Thank you 🙏! You help me so much to understand this 💐💐💐💐💐💐💐
I'm just wondering (sorry, this is a silly question), how come for the lithium example you x4 as there are 4 300mg tablets(to find out the total wt), but the MW wt is not x 4? Kinda confused by that (hope my question makes sense)
Thank you Bimba for watching and for the comment. Your question is a valid one and highly appreciated. The mass of lithium carbonate depends on the number of tablets and that is why we multiply by 4 since there are four tablets. However, the molecular weight of a compound depends on the atoms present in the compound and is obtained by adding the atomic weight values of the atoms in a compound. Hence, the molecular weight of lithium carbonate is independent of the number of tablets and that is why we do not multiply by 4. Hope this helps.
We really appreciate
Thank you @user-vq6wh3yd7x for watching and for the comment.
Sir, isn't the valence of Li+ equals to 2 ?
Thanks
Thank you Bouchaib for watching and for the comment. The valence of Li+ by itself is 1. Hope this helps.
great tutorial, tnx a million
Glad the video was helpful! Thank you for watching and for being a part of the pharmaceutical calculations community.
Could I please know why the valence of the compound of MgSO4 is 2? Sorry that I do not know about it. Since that the valence of Mg2+ is 2 positive, and the valence of (SO4)2- is 2 negative, should the valence of MgSO4 cancel out? I am confused here. Thank you!
The valence of a compound is either the absolute charge on the cation or anion that is produced when the compound dissociates in an aqueous environment. So for MgSO4 the cation is Mg2+ and the anion is (SO4)2-. Hence, you may find the valence by taking the absolute of +2 (from Mg2+) which is 2 or the absolute of -2 (from (SO4)2-) which is also 2. Thus the valence of MgSO4 is 2. Kindly note that you do not add or subtract the charges on the ions. Hope this helps.
Hir sir absolutely yes I catch big ideas
Thank Kushaha for watching and for the kind comment.
But how you put unit of molecular weight in mg/mmol?? Please explain
Thanks
6-8mins
very easy way to understand...thanks a lot
Thank you Chemistry Concepts Quest for watching and for the comment.
Hello Doctor,
if 104.65 mEq of Na+2HPO4 .H2O
NA DIBASIC PHOSPHATE / DOSE
SO Na+ will be same mEq or divided by 2
Thank you Hany for watching and for the question. Generally, for a given chemical compound, the milliequivalents of cation equals the milliequivalents of anion equals the milliequivalents of the chemical compound. Hence, the mEq of Na+ will be 104.65 mEq which is the same as Na2HPO4.H2O. Hope this helps.
Good explanation
Glad you liked the video Crissy. Thank you for watching and for the comment.
esta muy claro congratulations.
Gracias Baldur por mirar y por el comentario.
Much appreciated.
Thank you Omar for watching and for the comment.
Thank you very much chale❤
You're most welcome, @alvinselormnyoagbe6760! Thanks for the comment ❤️.
You're the best!!!!! TY
Thank you ivincexD for watching and for the comment.
i am having trouble with my physiology question,
the concentration of calcium ion in extracellular fluid is 11mEq/L . The cnmcentration of calcium ion intracellular fluid is 8.8% .
how to convert from mEq/L to percentage?
Thank you very much!!
You’re welcome Navid b 😊. Thank you for watching and for the comment.
Thank you soooo much
. God bless you
Thank you for watching and for the comment. Let us know if we can help you with anything else.
can you please explain why or how "milliequivalent value of Na+ ion equals the milliequivalent value of disodium hydrogen phosphate -- Na2HPO4.7H2O. When we want to calculate the mEq of Na+ in Na2HPO4.7H2O but not just mEq of Na+ itself?
Thank you Sylvia for watching and for the comment. Please see the first question in this video (th-cam.com/video/KGe2_V6BFSA/w-d-xo.html) where your question is addressed in the solution. Kindly take a look at it and let me know if more clarification is needed. Keep up the good work.
@@PharmaceuticalCalculationsEasy thank you very much I'll watch the video soon
Thank you so much 🙌🙌🙌👏👏
You're welcome 😊. Thank you Robam for watching and for the comment. Welcome to the pharmaceutical calculations community.
Hi can you please solve this question for me
Sulindac (weak acid) is a non-steroidal anti-
inflammatory drug with a pa of 4.2.
What is the pH of a solution containing 0.1M
sulindac sodium (the sodium salt)?
Calculate: a patient needs a infusion with 15 mmol of dibasic sodium phosphate in 150 ml or normal saline. How many mg of dibasic sodium phosphate do you need to make this infusion? The molecular weight of (Na2HPO4) is 142
Thank you Rulani for watching and for the comment. Here is the solution to your question: jo.my/smca9d
Magnesium chloride is available as magnesium chloride hexahydrate in an
an injectable solution that supplies 1.97 mEq of magnesium per milliliter. W hat is
the percent strength of magnesium chloride hexahydrate in this solution? in what way I could answer this?
Thank you Shaira Mae for watching and for the comment. Here is the solution to your question: th-cam.com/video/Vob9ONu8u2U/w-d-xo.html
Thank you so much for this video!! Do you tutor?
Thank u sir. Do u have some.more practice.problem.set.pleasw
Thank you Alma for watching and for the comment. There are more practice questions here www.rxcalculations.com/milliequivalents-quiz/
. You can also watch step-by-step video solutions to the free quiz here: th-cam.com/video/L0v4ovohr5Y/w-d-xo.html .
Great thanks sir 😇
Thank you for watching and for the comment.
LIFE SAVER !! THANK YOU !
calculate the mEq/L concentration of Na+, Ca2+ and Cl- in a fluid having 0.25M NaCl and 0.075M CaCl2. please
Thank you Allen for watching and for the comment. Here is the solution to the question: jo.my/ssxrwr. The accompanying video will be published soon. Happy studying.
Great video. What is the valence of sodium bicarbonate?
valence of sodium bicarbonate is 1
How??
Thank you 😊
You're welcome 😊. Thank you for watching and for the comment.
EXCELLENT VIDEO. Great variety of examples, very useful! Subscribed and will return! Thank you!
thanks a million
Thanks for watching and for the comment.
Thanks sir 👍
You are welcome Nitin. Thanks for watching and for the comment.
great you are fantastic and wonderful
Thanks for the kind comment. Happy studying.
can you solve this Following:
how may ml of water to be added to 10ml of 0.25 Eq/L Nacl Solution to make 0.9% normal saline solution?
hehe thank u :) got a better understanding:)
Glad the video helped. Thank you Claudia for watching and for the comment.
Thanks so much sir🥰🙏
Thank you Endesh for watching and for the comment.
good stuff
Thank you Haji for watching and for the comment.
This video really helped simplify these equations for me, so thank you.
I do still have one problem I haven't been able to figure out though, even with this video. When asked how many milligrams of calcium are in 1 gram of calcium chloride?
I keep getting 360 mg, but everywhere I look the answer is 273 mg and there is no explanation, so I don't understand what I am doing wrong. Can anyone please help me?
Nevermind, I just realized the question is using calcium chloride dihydrate, so I was using the wrong molecular weight.
Thank you!
How do you calculate valence for a non-ionic compound, such as an organic compound like C7H6O3?
Please the doctor ask me what is concentration thats meaning the mEq?
Hello Walaa, the question is a bit unclear. Could you please clarify the question you are asking?
Very very easy. Thanks
Can anyone helps me with the following question? Thanks!!
What is the mEq of magnesium sulfate if D5W 1000mL contains MgSO4 USP 20 mEq. The molecular weight for magnesium sulfate, USP = MgSO4 * 7H2O is 246.47.
Should I use 246.47 as the MW or should I only use the MW of magnesium sulfate (120) to solve for mEq?
Were u able to find the ans to this ?
Just like that? And am like 👍! Thanks
Thank you Joseph for watching and for the comment.
This seems like a very convoluted way to avoid learning chemistry and doing everything in molarity.
Proud of you
Thank you for the kind comment.
Great
Thank you Pooria for watching and for the comment.
Excellente 💚💚💚
Thank you Ahmad for watching and for the comment.
What happens if the valence ratios are not 1:1?
You need to balance the stoichometric equation and take the absolute of the highest charge on either ion. Hope I understood your question correctly and this helps.
What's the song title😊
Sunnyside by Leftover Cuties.
Excellente
thank you so much
Thank you...
thank you
Thank you for watching and for the comment.
Lol at that intro
Patricia Pasalosdos i dont skip it coz damn it's a bop 💕
where did the 100ml come from
for example: 0,9% is 9/100. So is 9g per 100ml. got it?