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%

a is the answer to this question

explanation:

answer: a tank of height h is filled with water and sits on the ground. water squirts from a hole at a height y above the ground and has a range r. for two y values, 0 and h, r is zero. determine the value of y for which the range will be a maximum.

explanation: