Formula Masses
- The mass of a water molecule can be reffered to as a molecular mass.
- The mass of one formula unit of an ionic compound such as NaCl is not a molecular mass.
- The mass of any unit represented by a chemical formula can be reffered as the formula mass.
Molar Mass
- The molar mass of a substance is equal to the mass in grams of one mole of the substance.
- The molas mass of a compound is calculated by adding the masses of the element's present in a mole of the molecules or formula units that make up the compound.
- One mole of H2O molecules contains exactly two moles of H and one mole of O atoms.
- A compound's molar mass is numerically equal to its formula mass.
Molar Mass as a Conversion Factor
- The molar mass of a compound can be used as a conversion factor to relate an amount in moles to a mass in grams for a given substance.
- To convert moles to grams, multiply the amount in moles by the molar mass.
http://www.webqc.org/mmcalc.php
ReplyDeletehelps say how to calculate molecular mass and weight and stuff
Again?
ReplyDeleteThis site has some problems involving molar mass
http://chemistry.about.com/od/workedchemistryproblems/a/molecularmass.htm
Here's some conversion review.
ReplyDeletehttp://www.chemteam.info/Mole/Moles-to-Grams.html
I could criticize you, but since I'm so far behind on posts it would feel wrong somehow.
http://environmentalchemistry.com/yogi/reference/molar.html
ReplyDeletehelps with the calculations of molar mass
How did you forget again? Oh well, here's a good site on molecular weight:
ReplyDeletehttp://urila.tripod.com/mole.htm
Nicholas.... how could you.
ReplyDeleteThis is a molecular mass calculator. It helps you calculate molecular mass.
http://www.lmnoeng.com/molecule.htm
Formula compounds::::http://www.tutorvista.com/search/chemical-formula-of-all-compounds
ReplyDeleteThis webstie explains how to calculate molecular mass.
ReplyDeletehttp://www.launc.tased.edu.au/online/sciences/PhysSci/pschem/reactqty/molemass.htm
video all about moles!
ReplyDeletehttp://www.youtube.com/watch?v=ZlVUXLBJg14
Happy birthday, nick.
nice!!!
ReplyDeleteDon't forget to start looking over the earlier stuff for our exam its less than two weeks away and this one is going to be a toughie
oh yeah and i forgot happy birthday nick
ReplyDeletesite about molecular and formula masses
ReplyDeletehttp://www.fordhamprep.org/gcurran/sho/sho/lessons/lesson56.htm
heres a molecular mass calculator
ReplyDeletehttp://www.bmrb.wisc.edu/metabolomics/mol_mass.php
INTERRESTING NO BLOG
ReplyDeletehttp://home.earthlink.net/~ssbeaton/addlinfo/formulawriting.html