$1$ kg solution containing $23\%$ by mass of sodium phosphate is cooled from $313$K to $298$Kin a batch crystallizer to form crystals of Na$3$PO$4\mathrm{.}12$H$2$O$.$ The solubility of Na$3$PO$4\mathrm{.}12$H$2$Oat $298$K is $15\mathrm{.}50$ kg$/100$kg water. Assume evaporation is negligible during cooling.Estimate the yield of crystals formed.