posted by Yvette .
The solubility of sodium floride, NaF, is 4.06 g NaF/100 g H2O at 20ºC. What mass of NaF would you have to dissolve in 1000 g H2O to make a saturated solution?
4.06 g x (1000/100) = ??
Wouldn't you expect to dissolve 10 times more NaF in 10 x more water?