CHEMISTRY: So how many water molecules are in that drop? Here’s the lecture from today on formula mass and then using molar mass as a conversion factor. You did a great job on thinking through the problems! Now go forth and practice them so you don’t forget!
By the way, were you ready for the quiz today? What about tomorrow? Don’t give up – keep working on memorizing polyatomic ions, acids, and the chemical names for those common substances you researched. Hey – have you tried making a song?
🙂
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I’m so happy that it is so easy to find the formula and molar masses. It makes life so much easier.
Rewatching this has really helped me!
I watched this and it helped so much. Thanks.
I dare say this is actually fun
im glad that finding molar mass is easy
This is really helpful after missing you teach it in class.
It was really helpful to have this vodcast.
I think I’m finally beginning to get. Is there any way we can have a help session soon though?
Formula mass was easier than I thought it would be.
I think this is the easiest thing we have done in a while. Thank you for posting this.
this stuff is crazy
Todays lab was fun 🙂
On the lab we are writing up tonight, how do we find the perfect error if our accepted number is a percent?
Juliet – just ignore for a bit that that you’re finding the % error of a percent and use the same formula for % error that we’ve always used.
I need more review on this.
I need to review more on this.
Pate – Help session Thursday morning, 7:15 A.M.
What data needs to be in the data table for the gum lab we’re writing up tonight?
Molly Kathryn – Any data you measured and any data you calculated. And also show your calculations.
When is the next help session?
Peyton – Let me know and we’ll schedule another one.
On the Water Hydration Lab, where do we put our calculations?
Allison – You put them in the Observations section, after the Data Table.