Hi Kuldeepak, Thanks for watching my videos. Since your answers has to come out in a whole number, you have to play around with this problem a bit. I started off with measuring out 2 mL of HCl because that is the minimum we can measure. I then added 6 mL of water for a total of 8 mL. Now you can set up a simple ratio proportion problem to see if the answer comes out with something that will work. 2 mL HCl/10 mL soln = 0.5ml HCl/X mL soln. Solving for X we get 2 mL, which we can measure.
Thanks for sharing valuable things. Would you help me solve this problem. A formula calls for 0.5 milliliter of hydrochloric acid. Using a 10-milliliter graduate calibrated from 2 to 10 milliliters in 1-milliliter divisions, explain how you would obtain the desired quantity of hydrochloric acid by the aliquot method.
You can download my book, Pharmacy Calculations for Pharmacy Technicians: Solving Pharmacy Calculation Problems Without All the Silly Formulas, for free at payhip.com/b/5xVY. It goes into more detail than possible on the videos and is full of practice problems and answers.
A 10-milliliter graduate weighs 42.745 grams. When 5 milliliters of distilled water are measured in it, the com- bined weight of graduate and water is 47.675 grams. By definition, 5 milliliters of water should weigh 5 grams. Cal- culate the weight of the measured water and express any deviation from 5 grams as percentage of error
Let me start off by saying "Thank you" I got my Natonals not too long ago and I am reviewing your posts in order to refresh my self and to move further in my career. My question is about using shortcuts in particular with the last question. I came up with the 1.6 g range by simply multiplying 80 g by 2%, Would you recommend using such a shortcut for other problems ?
Hi Russell. I am happy that I could help. Yes, multiplying by 2% is fine. It is essentially what was done in the video. I just don't like other shortcuts like moving the decimal point to convert units, because it is too easy to move it the wrong direction.
Thank you! The textbook we were assigned did a very bad explaining this concept so I had to look it up. I'm glad I ran into your video first
Glad I could help!
Always need your assistance when reminding the problems, Thanks
Hi Kuldeepak, Thanks for watching my videos. Since your answers has to come out in a whole number, you have to play around with this problem a bit. I started off with measuring out 2 mL of HCl because that is the minimum we can measure. I then added 6 mL of water for a total of 8 mL. Now you can set up a simple ratio proportion problem to see if the answer comes out with something that will work. 2 mL HCl/10 mL soln = 0.5ml HCl/X mL soln. Solving for X we get 2 mL, which we can measure.
thank you for this video! i’ve been having some trouble with this section in my book, they explain it quite badly. appreciate the help!!☺️
You explain so well. Thanks a ton for sharing this!
You are welcome. Glad it helped.
Thank you professor 🤍
Thanks for sharing valuable things. Would you help me solve this problem. A formula calls for 0.5 milliliter of hydrochloric acid. Using a 10-milliliter graduate calibrated from 2 to 10 milliliters in 1-milliliter divisions, explain how you would obtain the desired quantity of hydrochloric acid by the aliquot method.
What does the sensitivity requirement mean in the questions?
You can download my book, Pharmacy Calculations for Pharmacy Technicians: Solving Pharmacy Calculation Problems Without All the Silly Formulas, for free at payhip.com/b/5xVY. It goes into more detail than possible on the videos and is full of practice problems and answers.
is there a video where you do this involving mL? I am currently doing this sort of problem in my text book and i am so lost
Patrick Mitchell the units don't matter. Send me a couple of problems at Brad.wojcik@gmail.com and I will show you how to do them.
A 10-milliliter graduate weighs 42.745 grams. When 5 milliliters of distilled water are measured in it, the com- bined weight of graduate and water is 47.675 grams. By definition, 5 milliliters of water should weigh 5 grams. Cal- culate the weight of the measured water and express any deviation from 5 grams as percentage of error
Let me start off by saying "Thank you" I got my Natonals not too long ago and I am reviewing your posts in order to refresh my self and to move further in my career. My question is about using shortcuts in particular with the last question. I came up with the 1.6 g range by simply multiplying 80 g by 2%, Would you recommend using such a shortcut for other problems ?
Hi Russell. I am happy that I could help. Yes, multiplying by 2% is fine. It is essentially what was done in the video. I just don't like other shortcuts like moving the decimal point to convert units, because it is too easy to move it the wrong direction.
Hello .. I am a student of pharmacy first stage and face difficulty in principles Can I send questions I do not know solve it??
Yes. Email me at brad.wojcik@gmail.com.
ها زينب فلاح بشري هسه تخرجتي مو
Be sure to download the book. Payhip.com/b/5xVY