Expressing Concentration by Mass Percent

We know how to express solution concentration in terms of molarity and molality, but the common public also needs to communicate concentration for certain reasons, and they don't really know about moles and things like that. What do they use? Mass percent!
Watch the whole General Chemistry playlist: bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: bit.ly/ProfDaveBiochem
Biology Tutorials: bit.ly/ProfDaveBio
Classical Physics Tutorials: bit.ly/ProfDavePhysics1
Modern Physics Tutorials: bit.ly/ProfDavePhysics2
Mathematics Tutorials: bit.ly/ProfDaveMaths
EMAIL► [e-mail]
PATREON► / professordaveexplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: amzn.to/2HtNpVH
Bookshop: bit.ly/39cKADM
Barnes and Noble: bit.ly/3pUjmrn
Book Depository: bit.ly/3aOVDlT

[@drvir]

What a coincidence! I have an exam on the same topics, like mass percent, molarity, molality, normality tomorrow. Thanks professor Dave!

[@Soupy_loopy]

I tried to concentrate on the video, but I solute you.

[@lovechemistry5930]

The way of explaining is simply awesome😍😍😍.love chemistry,😍love you professor dave

[@zulanova1209]

I love your vids, straight to the point, visually interesting and it helps me to understand it perfectly thank you so much you're saving my college career

[@kouroko-2335]

Just. I am fall in love with the way he explains.

[@PatrickAnthonyPontillo3rivers]

Go get 'em, Dave.

[@GwenKalash]

TYSM! This is very helpful!

[@yannickb3524]

I love you, Dave

[@BintalMuminun]

what a coincidence! thanks to you l passed my exam! thank you

[@sirwilliamlockheart6648]

Got a video showing how you can convert between the types of concentrations? Converting between Molarity, Molality, Percent by Mass, Percent by Volume? I just wanna look at a bottle of isopropyl alcohol and know its molar concentration.

[@waelfadlallah8939]

4:00 regarding 10%aq NaOH. I always prepare it by dissolving 10grams in 100cc H2O not as mentioned by dissolving 10grams in 90grams (90ml) of water

[@hesousa8488]

Thank you

[@holden2966]

U speak like u are afraid🤔 No expressions, just talking 😌 But I like the information

[@09paraggawali66]

You are the best

[@mayaadel7829]

Thanks,sir

[@Sweet-hu4nk]

Nice 😊

[@thedocumentedlifeofenjae]

What's up professor?

[@donotbebiased6987]

Professor, why we don't have volume/mass percentage concentration term? Plz reply professor..i searched many books but they haven't addressed this doubt

[@spiritbond8]

A volume PER mass? Do you see how that makes no sence whatsoever? A solute has no volume of its own. It may impact the solvent's volume either way i.e. the solution can have greater or lower volume than the solvent on its own. Or measure the volume of a solid solvent before dissolving? There is a reason we never measure amounts of solids in terms of volume... it gives us extremely crappy information about the amount. Or you may be thinking in terms of liquid in liquid solution. But why measure volume against MASS in this case? Especially in miscible sölutions like alchohol in warter, volume per volume just makes sense.

[@donotbebiased6987]

@@spiritbond8 thanks for ur reply

[@badhasabogale4212]

good

[@elitegaming5799]

Thank you jesus chemistry

[@sudarshanrathi7925]

hey your emil doesnt work

[@jamesprince571]

NaOCl

[@ivonnelopez8203]

what does the tattoo on your left arm say?

[@dakshinvamsi227]

Hey Prof Dave , is you instagram id 1ppm? Cuz you’re 1 in a million 😊