# Question #26561

You need 27 g of $\text{NaCl}$.
$\text{Mass of NaCl" = 180 color(red)(cancel(color(black)("g H"_2"O"))) × "15 g NaCl"/(100 color(red)(cancel(color(black)("g H"_2"O")))) = "27 g NaCl}$