Preparing Solutions - Part 1: Calculating Molar Concentrations

[@assitank4922]

Ive been in lab class for over a month and the explanations given in this video, have been what ive needed for a long time.

[@lialee162]

Thank you very much I always used to find it so difficult and you made it seem so simple. I tried the sample questions after your explanation and got all of the correct. Thank you again. :)

[@vaishumeow2204]

I'm so happy that I finally understood stuffs that I've been banging my head for...

[@josephmoukwele3035]

Dear Madam, thank you so much for the quality of your teaching.

[@wednesdaysfrog8422]

The best explanation i've ever had

[@Tilak_hm]

1:00 She kept her laugh for her Sodium *coride-Chloride😂😂

[@assitank4922]

Your explanations are so simple. Thank you so so much!

[@renasisa6522]

Best way to understand dilutions. Thanks

[@ranahaiderali4821]

Amazing explanation and it increased my confidence. Thank you!

[@pinheadlarry2506]

Another useful way you can view question 3 is by simply multiplying the molecular weight by two(136.09 x 2 = 272.18) so that you can see how much grams would be in a 2L solution to that is 1M, and then divide the given numbe(83.7) by your new 1M gram total(the 272.18) to get the same answer but in less steps and thinking.

[@amrofaidalla2513]

You are a life saviour. God bless you

[@varunkarthik5392]

Well explained with examples. Thank you 🙏

[@honeysingh6055]

i got it very clearly...thankyou mam

[@haginsmedia]

Thank you for simplifying this for us.

[@lepetite7332]

I want to ask something. supposed I want to make a phosphate solution form KH2PO4 anhydrous. to a phosphate solution of 300mg/L should I just ad 0.3 gram of KH2PO4 into a liter of DI water or I have to do some calculation? thank you!

[@Thewindowseat149]

Great work....explained really understandable...

[@Achilles189]

Can you explain real time pcr, working principles, protocol, and calculation..because your explanation was really helpful..

[@neil8953]

All super clear, except the last step of last question, please if anyone got the same answer as mam explained, please let m know, Thanks in advance.

[@sakbar7655]

Very useful video. loved it. thank you

[@MrStephen777]

Very good except camera angle. Well explained and i defiantly need some serious catching up with this/

[@mboowashafiq1496]

Wish my chemistry teacher taught me in this way😂😂😂😂,,,just wondering why some teachers make things complicated yet in the actual sense dea simple,,,,,

[@vedanidhisulebhavi1948]

Shouldn't the heading be 1l of solvent ,rather than solute??

[@gauravyoman]

thank u so much...very well explained...

[@nirmalisharma9561]

wow..its so easily explained..i used 2 always get confuse

[@allyjailo4948]

I have understand!!!!!! than you for your simplicity

[@bobloblaw9219]

Thank you, thank you, thank you, thank you and thank you.

[@tenzyy5023]

You don't explain some numbers how you get it but it would be much simpler by showing cross multiplication. Anyways thanks for your video.

[@neil8953]

Because in last step it was 1/3.25 then you can get the answer 0.31.

[@mehboobyaqoob473]

thanks, it was very helpful

[@nansubugaester7348]

You are the best

[@ZakLiTLearnfortheEnvironment]

Thanks a lot ma'am... thank you so much

[@iandurias2057]

Supernatural... Rowena

[@Dispatern]

Thank you very much!

[@padmasree4720]

tanku so much.:-):-)..rly helpful...

[@nehaanand94]

Thank you ma'am 😊

[@chemmindcm5144]

Nice explains

[@katecook5951]

I can now only complete molarity calculations in a Scottish accent

[@rawdonwaller]

So, 58.4g NaCl solute into 1L solvent, or 58.4g NaCl solute into 1L - volume taken up by 58.4g NaCl? I imagine the volume of the solute is so tiny as to be negligible. However, this issue always bugs me. Thanks for your answers in advance, fellow viewers.

[@l.fsader6021]

yes I think she made mistake. its mass of solute over 1L solvent not solute. the solute is initially a solid and is not measured in liters. It is what you are distilling or titrating from the solution.

[@javeria2214]

thank you. 👍

[@netajigudenkwar2334]

thank you very much mam

[@shrutisarkate8910]

Thank you mam

[@tahirtantary7438]

Nice madam

[@annahathaway4284]

Thank u

[@kunakabasi7520]

❤️

[@sourbhrankawat834]

Taloyr swift