HON CHEMISTRY: So how many molecules of water do you think are in these drops? The little mole turns out to be a pretty big deal – and a very handy tool!!
Great job today! Here’s discussion on formula mass and molar mass, and then using molar mass and Avogadro’s number as a conversion factor. You’ve got a couple of great tools – so now think through the problems and go forth and conquer!! Be sure and practice them so you don’t forget!
Photo by Robert Anderson on Unsplash
HON CHEMISTRY: What do you think about Avagadro’s mole? Here’s our look at some of the homework from last night. Could you figure out how to use those same awesome tools for compounds?
CHEMISTRY: How about cranking it up a notch?! First we did binary ionic compounds, and now, let’s tackle formulas with polyatomic ions. Something absolutely necessary – you have got to memorize polyatomic ions – or better yet, learn them! And practice, practice, practice!!
Another great idea, click here for a copy of the Hints for Naming Chemical Formulas Flow Chart, or find it under the Worksheet/Handouts Tab. Follow it every time you name chemical formulas!!
HON CHEMISTRY: So….you think if his work helped us understand something as significant as the number of something in a mole they might name something after him? They did! Go figure! Another name for the number of anything in a mole is Avogadro’s Number. That would be how many?
You caught on super fast today! Remember, it’s all in terms of one mole. The mass of one mole, the molar mass, is the average atomic mass of the element in grams (periodic table). And the number of atoms in one mole is …. well you know that. Speaking of moles, isn’t he cute? Well, beauty being in the eye of the beholder and all. Hmmmm………
Image source blog.ibts.eu/wp-content/uploads/2009/02/mole2.jpg
PHYSICS: Great start with net vertical force! Don’t you think it’s the same as horizontal – just turned 90 degrees? And incredible demonstrations of some important concepts!
PHYSICS: Boxes and crates all slipping and sliding along inclines … Is it starting to make a little more sense? Here’s a look at some of the problems on an incline that might have a twist. A little extra fun! 🙂
You’re getting it…keep sledding and watch out for net forces!
Photo by Erda Estremera on Unsplash
CHEMISTRY: Great job learning to name binary ionic compounds and write formulas!
Speaking of formulas, have you started on the polyatomic ions?!? What is your plan for all the memorization in this chapter? Word of warning – don’t wait to the last minute!!
Super important – the secret for the next few days and this entire chapter is DON’T GET BEHIND! Keep up with me and practice, practice, practice!
CHEMISTRY: Now that you’ve learned to write and name chemical formulas, it time to take it to the next level and learn to use chemical formulas as a tool. Woohoo!!
Great job today with formula mass and molar mass! Be sure and show your work – and don’t forget to include the units!! (FYI – at the end of the vodcast is a look at tomorrow’s test!)
Photo by Hunter Haley on Unsplash
PHYSICS: Who knew snow skiing could be so complicated! Well…friction problems on an incline anyway. First – here’s our our look at the homework wit forces at an angle. Next, our discussion of friction problems on an incline.
Remember, drawing the diagram is super, super important. Label all the forces and apply the concepts you know about net forces and resultant forces – let it tell you a story. 🙂
Here is some info you might find helpful in the future:
PHYSICS: All kinds of sliding going on around here… Is it starting to make a little more sense? Here’s a look at some of the friction problems with forces at an angle that might have a twist. A little extra fun! 🙂
You’re getting it…keep sledding and watch out for net forces!
Photo by Brandon Mowinkel on Unsplash
