My boy Professor Dave coming to the rescue to an AP Chem teacher that doesn't know how to teach. Your explanation is amazing, it would be almost impossible for people to not understand.
Wow! Your professor sucks! I can't believe he or she got that amazing job just to send youtube links of material they couldn't be bothered to go over themselves. Whatever, these videos are pretty good anyways.
I listen to a 1 hour lecture and am still confused, I listen to a 5 minute video by professor dave and I literally understand it so well. Thank you so much professor you are the best.
Thank you so much! In three minutes I had more comprehension of this subject than in the last two hours googling results because our professor decided the best way to teach his class was one twenty minute session per week and then demanding we use google to learn how to do labs that aren't explained in the textbook. Truly outstanding, I wish you were my professor right now.
OMGGG i am over the mooooon that i have just found ur channel. im a yr 12 student who is currently studying alevel chemistry and this video really clarified my understanding. Thanks Dave X
Great video. Have a couple questions though: for the comprehension problem how did you get (1 mole/106 g/mol) for the 3.22 g hydrate and (1 mole/18 g/mol) for the 1.09 g water?
Hi, Professor Dave, great video btw, have been wanting to know about this since it was once a question in our final exam but I wasn't able to answer it cause I don't know how However, concerning the topic is it possible to find or calculate the no. of water molecules needed in hydrated salts without doing the experiment?
I am doing this calulation for an assignment and I came here to check if I was doing it correctly. It looks like I am, but why do I keep getting a decimal number??? Is that right??
Why do we need to get the molar ratio, can't we say that the number of moles of water of crystalization is the number of moles of water we first calculated before dividing the smaller mole
what if we have more than one water for example 5? are we going to divide the mass of the water by molar mass of only one water molecule,18, or divide it by the amount of water molecule exist, 5*18?
Hi Mr Dave, I'm trying to do a homework assignment my teacher gave me. The questions he asks are like the same logic, but he asks for the empirical formula instead. Do you know how I can do this?
My boy Professor Dave coming to the rescue to an AP Chem teacher that doesn't know how to teach. Your explanation is amazing, it would be almost impossible for people to not understand.
Honestly man i feel u about the teacher who can't teach
Prof Dave out here saving my grade and gpa. bless
I'm paying over $600 for this chemistry class credit and I get sent links that have Prof Dave teach me what my teacher should! Thanks Dave!
Wow! Your professor sucks! I can't believe he or she got that amazing job just to send youtube links of material they couldn't be bothered to go over themselves. Whatever, these videos are pretty good anyways.
I listen to a 1 hour lecture and am still confused, I listen to a 5 minute video by professor dave and I literally understand it so well. Thank you so much professor you are the best.
Thank you so much! In three minutes I had more comprehension of this subject than in the last two hours googling results because our professor decided the best way to teach his class was one twenty minute session per week and then demanding we use google to learn how to do labs that aren't explained in the textbook. Truly outstanding, I wish you were my professor right now.
I’m watching this 3 hour before my chemistry final exam. Thank you soooo much man
how did it go bro
@@gentlepeeps3351 Another 2 years passed and they might now be a scientist or chemical engineer
This is useful❤
I've been struggling with these calculations for months now🤦🏾♀️
My school is closed for several weeks cuz of corona, so I'm just trying to learn stuff on my own for chemistry. Thanks... Awesome video
Woah
OMGGG i am over the mooooon that i have just found ur channel. im a yr 12 student who is currently studying alevel chemistry and this video really clarified my understanding. Thanks Dave X
what's a level chem ? little one
Great video. Have a couple questions though: for the comprehension problem how did you get (1 mole/106 g/mol) for the 3.22 g hydrate and (1 mole/18 g/mol) for the 1.09 g water?
Prof Dave, I teach chemistry at high school. I get ideas from you on how to teach better. Thanks, Rick
After watching so many videos. This one finally explained it so easily.
thank you so much man i could not get this for weeks you just has to say it once and i already got it correct
Life saving video
Much love from south africa🎉
I spent three hours in frustration before I came across this on youtube. You have saved my sanity!
DAVE THANK YOU SO MUCH! In five minutes you taught me this properly thank you so much !!!!
He knows a lot about the science stuff professor Dave explains ~true
please can you also make a video on how to calculate the mass of a salt obtained during titration
literally saved my chem test tomorrow tysm omg
Thank you so much Dave!
I do not care how old this video is, you saved me on this test!!!!
awesome vid, hope i pass my chem lab final with flying colors this week 😎
I think your awesome and very helpfull. You have one of the best youtube Channel.
This helped me a lot, thanks!
Thanks Prof. Dave, the best!
itsb great that you are doing it for free
thank you chemistry Jesus
You just saved my life
thank you so much chemistry jesus
You are doing an amazing job
we love you prof
Best doctor everrrrr😍😍😍
Great video! Just a bit confused on how he gets 8.09g for H2O?
MgCO3 x H2O =15.67-7.58 =8.09g of H2O that evaporated
Now convert 8.09g÷.by 18
0g H2O /Mol to get 0.45 mol
How do you find 7.58g
Are you an angel? Cuz, I'd be shook if you didn't just come down from heaven to rescue me from this homework. Thanks a lot.
Thanks for the video. I have a little question: Why do we divide by the smaller number of moles? Simple logic plz.
just to get the molar ratio!
Thanks for video
Thank you so, so much!
Professor Dave for real saving my chem lab grade because my actual professor doesn't know how to teach or help us out
thank you
Thank you so much sir
Love this man!
thanks
so you saying i have to do molar calculations even if i am making a solution by weight for a hydrated salt ??
very good
thank you so much
Thanks a lot ❤
Thank you... 🙏🏾❤️
legend, thx
tysm for this!!
amazing video! I'm always coming to this channel for chem help haha. However, I do have a question how did you get 7.58g for MgCo3???
I am wondering the same thing
i'm also wondering bc i HAve a chem test tmrw. WISH ME LUCCCK!!!!
Does the mole of a salt and hydrated salt are equal ??
Hi, Professor Dave, great video btw, have been wanting to know about this since it was once a question in our final exam but I wasn't able to answer it cause I don't know how However, concerning the topic is it possible to find or calculate the no. of water molecules needed in hydrated salts without doing the experiment?
Do you know a hydrated salt where the ration is not 1/x but something else?
yeh im confused
I love you man
WONDERFUL thanks xoxo
How do you create a "Salt" Mono hydrate
Thanks D-Dog
I am doing this calulation for an assignment and I came here to check if I was doing it correctly. It looks like I am, but why do I keep getting a decimal number??? Is that right??
Why do we need to get the molar ratio, can't we say that the number of moles of water of crystalization is the number of moles of water we first calculated before dividing the smaller mole
Awesome
mans making my life easier
Thank you for your amazing videos! I find 104 for the molar mass of Na2CO3, where am I wrong? (44+12+48)
sodium is 23 so x2 is 46
@@ProfessorDaveExplains Oh right I'm dumb, thank you!
How to write this kind of dissolving folmula?????
how did scientists in the early 20th century accurately predict molecular structure. ie glucouse' s structure and so on
they were smart people
thank you chemistry jesus
what if we have more than one water for example 5? are we going to divide the mass of the water by molar mass of only one water molecule,18, or divide it by the amount of water molecule exist, 5*18?
I emailed you a question professor but you didn't respond and appreciate the good work
Thaaank you Professor❤
Always love your video 😍😍
Hi Mr Dave, I'm trying to do a homework assignment my teacher gave me. The questions he asks are like the same logic, but he asks for the empirical formula instead. Do you know how I can do this?
where did you get the number of grams for MgCO3 and H2O?
through experimentation
NICE
Best video #from Nepal
Organic Chemistry
well, i guess i won't fail anymore...
How to find it with just mental calculations?
thank you sooo much ruby da cherry, say hi to $crim for me...
i have a crush on this guy
شكراا 💙
why are some salts hydrated?
Salts are micronutrients required by the body and are aswell ssed in testing
The dawgs❤️
Thanks again Prof. Dave 06OCT2018
I love you professor dave
I freaking love you 😍 thank u for saving my ass
Only fans?
Does anyone find his intro a bit annoying? or is it just me?
Thank you so much
thank you!