If the mole fractio of nacl in an aqueous solution is 0.0927, what is the wt/wt% (percent by mass) of nacl

mole NaCl = 0.0927

mole H2O = 1.0000 - 0.0927 = 0.9073

then

mass NaCl = 0.0927mole x (0.9073g / mole) = 0.1022 g

mass H2O = 0.9073 mole x (18.02g / mole) = 16.35 g

and therefore;

mass % NaCl = [(0.1022g NaCl) / (58.45g NaCl + 18.016g H2O)] x 100% = 24.9%

=24.9%

the answer is: they rebelled against saddam hussein’s rule.

kurds opposed saddam rule and wanted independence. kurds in the north and shiites in the south revolt against hussein.

for example, the halabja attack in 1988 conducted against the kurdish people by the iraqi regime under saddam hussein, where between 4000 people are killed and around 9000 are injured.