Thursday, June 24, 2010

Formic acid, HCOOH, is what causes the sting of bee stings. What is the formula weight of formic acid?

a) 29 amu


b) 46 amu


c) 50 amu


d) 58 amuFormic acid, HCOOH, is what causes the sting of bee stings. What is the formula weight of formic acid?
Formula weight, or molecular weight is the sum of the atomic weights of all the atoms that make up the molecule.





H = 1 g/mol


C = 12 g/mol


O = 16 g/mol





HCOOH = 1 + 12 + 16 + 16 + 1 = 46 g/molFormic acid, HCOOH, is what causes the sting of bee stings. What is the formula weight of formic acid?
Do it like the guy showed you above but if you are at home and you want a quick reference.





Always use www.chemfinder.com





Type in formic acid and it will give you molecular weight :-).
46


don't you know how to calculate MW???

No comments:

Post a Comment

 
tanning products