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To prepare a solution that is 15.0% aqueous KCl by mass, one shoulda. dissolve 15.0 g KCl in 85.0 g H2O.b. dissolve 15.0 g KCl in 1.00 x 10² g H2O.c. dissolve 15.0 g KCl in 0.850 mol H2O.d. dissolve 0.150 mol KCl in 0.850 mol H2O.e. dissolve 0.150 mol KCl in 1.00 mol H2O.
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