Chemistry 11-15-11 Empirical Formulas

CHEMISTRY: So, would you like to be Greg on CSI? Great start on empirical formulas today. The hardest part is that it’s not a set formula for you to plug and play, but if you’ll keep in mind that you’re really just looking for subscripts which are just moles, you’ll be able to think it through. Percent to mass, mass to moles, moles to smallest whole number ratio. And don’t forget the little step you might have to add to the end. Tomorrow – molecular formulas! 🙂


Image source www.dnr.mo.gov/env/esp/images/prettytesttubes.jpg

Hon Chemistry 10-24-11 Empirical Formulas

HON CHEMISTRY: Great start on empirical formulas today. The hardest part is that it’s not a set formula for you to plug and play, but if you’ll keep in mind that you’re really just looking for subscripts which are just moles, you’ll be able to think it through. Percent to mass, mass to moles, moles to smallest whole number ratio. There’s a little added step you might have to add to the end – we’ll go over it tomorrow. Also tomorrow – molecular formulas.


flickr photo by Darwin Bell

Chemistry 4-4-11 Empirical Formulas

CHEMISTRY: So, would you like to be Greg on CSI? Great start on empirical formulas today. The hardest part is that it’s not a set formula for you to plug and play, but if you’ll keep in mind that you’re really just looking for subscripts which are just moles, you’ll be able to think it through. Percent to mass, mass to moles, moles to smallest whole number ratio. There’s a little added step you might have to add to the end – we’ll go over it tomorrow. Also tomorrow – molecular formulas.


Image source www.dnr.mo.gov/env/esp/images/prettytesttubes.jpg