Molarity and Dilution

Now those pesky moles are swimming! But how much solute is there? Let's learn about how we measure concentrations of solutions, and how to perform dilution calculations.

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[ProfessorDaveExplains]

Guys, at 0:30 I say "moles solute per liter of solvent", but it's per liter of solution! What a dumb mistake on my part, but it's an important definition to get right so please take note.

[milekyle]

I love the quiz music. They should play that during finals

[louisclexvi]

you just helped me pass my exam basically. you magnificent man.

[paigejohnson]

Thank you for making this so concise, while also making it clear! Helped me a lot with my classwork. :)

[IvoryOut]

Short, to the point, incredible explanation. THANK YOU!

[kyokokirigiri]

I try to be serious and focus but the face at 0:08 fucking kills me lmfao

[LaikaBuzz]

Holy hell I couldn't remember this simple equation for the life of me trying to figure out a concentration problem. Clutch. Thank you!

[samsonkatende]

you have helped me big time ..i appreciate

[zwoomy]

It is 4am, i got a chemistry quiz this morning, and I'm trying my very best to sort this in my brain 😭

[Raantas]

I got the answers right. Thanks professor

[JanaJana-rxjt]

Thank you very much fav teacher professor dev🎉🎉

[AlensKalns]

what calculations did u have to do to get 0.600L of water? great video btw

[kripashankarshukla]

Sir you explain very well and reply to all the questions. I asked 3 questions through comment and you replied to all of them after 1 or 2 hours. You are superb

[yashcaroicar]

cool video...super helpful .... what animation software do you use?

[phenomenalphysics]

1:21 does that mean that even after adding more solvent volume of solute remains constant?

[NikkiPink]

First of all, thanks for the great videos.

I just have a quick question. Are you supposed to add the mass of the solute to the solvent to get the total mass of the solution? I don't know this for certain, and want to make sure I am doing the right calculations. Thanks in advance.

*Edit* Mean't volume, not mass.

[nadiahulwat.]

What about Precipitate kind of elements, its that count in this term as well?
Anyway thank you
Prof. Dave💎

[ludwigliu]

The solubility of calcium hydroxide is really low so I think the question at the end is not feasible at all Professor Dave

[MrCsScience]

Molarity = moles of solute per liter SOLUTION, not solvent. I like your videos and the way you explain, but can't use it w/my students as they'll be confused :(

[tb]

Can someone explain the intuition behind why dilution can be represented with the M1*V1 = M2*V2 equation? I don't want to just blindly use the formula - would like to know why it works.
Is there a way to do these dilution problems with dimensional analysis?