This video explains the percent concentration formula in three ways along with some simple examples. If you want to figure out how to solve a percent concentration problem, in a step by step manner, definitely check this out: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-9y3QahMHEA4.html If you're curious to find out if there's any connection between molarity & mass/volume percent, then definitely check this out: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-8-kRqJV-M9Y.html
@@ChemSimplified So you are a doctor right? Damm i am also aiming for a one but the physical chemistry gets the hell out of me but your video made it easy 😎
We need to do a little bit of algebra to get 48. In order to get the volume of solution, we take 12 / 25 x 100 and that gives us 48 mL. You might be interested in this video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-31PCf5793bc.html on rearranging linear equation (check out the example of T1). Hope this helps!
The top is for grams of solute which is NaCl, that's why 65 g is on top. I'll add in the main steps into the next video. Thanks a lot for your feedback.
Percentage by volume uses volume to measure its solute and solution, whereas percentage by mass uses mass for the solute and solution. For example, 40 mL acetic acid in 100mL solution. You'll use percentage by volume since both measurements are in volume (mL). Hope that clears it up.
Yup, percentage by mass volume has to be grams/mL or kg/L. It can be percentage and grams when you are given the percentage by mass-volume and mass of solute and asked to find the volume of the solution.
@@diademodellasaycon2367 Do check out this video on how to divide: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-31PCf5793bc.html. Do let me know if this helps.
That means you need to use the percent mass-volume formula. Before plugging into the formula, you'll need to convert the volume of solution to mL => 1L = 1000mL. %(m/v) = 500g / 1000 mL * 100% = 50%
Sorry about that. If you can let me know which questions (at which time), I can explain them here. Meanwhile, I have other videos for percent concentrations that show all the computation: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-9y3QahMHEA4.html ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-8-kRqJV-M9Y.html
We need to do a little bit of math to get the 48 mL. In order to get the volume of solution, we take 12 / 25 x 100 and that gives us 48 mL. This video might help: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-31PCf5793bc.html on rearranging linear equation (check out the example of T1). Hope this helps!
you need to explain more step by step and be patient. you are too fast and you do not give enough examples. I think you should think of that. kind regards
@@ChemSimplified you need to give more complicated questions and at least two examples per each. so your videos are more helpful. and you should speak slowly king regards
You can rearrange the formula so that you'll be able to find the volume or mass of the solution. Let me know if you're interested in a video on rearranging formula. On another note, are you asking if information on solute and solvent is given and you need to find the solution? In that case, you add the mass or volume of solute and solvent together. Keep in mind, solution = solute + solvent. Hope this helps.
I don't blame you for being confused. Technically, 1. sweetened coconut milk is NOT a homogeneous mixture (solution) 2. you need another piece of info, which is the volume of the sweetened coconut milk (sugar + coconut milk). What we have now is Mass of sugar (solute) = 450g Volume of coconut milk (solvent) = 360 mL Since one is a mass and another is a volume, we can't just add them up for the sweetened coconut milk. So, we are technically stuck and can't go further. Assuming there's "no error" in the question, we can convert mass of sugar to volume of sugar. Turns out 450g of sugar is 532.32 ml. I found this site www.traditionaloven.com/culinary-arts/sugars/granulated-sugar/convert-gram-g-granulated-white-sugar-to-milliliter-ml.html. So now, we can get back to business and calculate %(v/v) = 532.32 / (532.32 + 360) * 100 = 59.7% Another possibility is there's an error in the question and that 360 ml is actually meant to be the volume of sweetened coconut milk and not just plain coconut milk. In that case, we can calculate %(m/v) = 450 / 360 * 100 = 125% It'll be great if it's possible to clarify the question. Anyway, hope you are less confused. 😀
@@ChemSimplified thank you, im a little bit confuse because the answer key on my modules are wrong because how it is possible that the solution became 300ml and the answer of it is a fraction and the answer is 16/67%
