Cathy has 3.5 grams of NaCl. Does she have enough to make 400 mLs of a .3M solution of NaCl?
Thanks for the help, well done.
- 9 years agoFavorite Answer
let us calculate how many mLs we can make :
so no 3.5 g is not enough
x=17.4g in 1L
so x=17.4*0.4=6.96 g for 400 mL
- Anonymous9 years ago
NaCl has a formula wt. of 58.44; so to make 400mls of .3M NaCl requires 58.44 x .3 x 400/1000 =
7.013 grams of NaCl to make the proper solution. She doesn't have what it takes, alas.