wt_pct_vec# wt_pct_vec = array([[ 0.], [ 1.], [ 2.], [ 4.], [ 6.], [ 8.], [10.], [12.], [14.], [16.], [18.], [20.], [22.], [24.], [26.]])# Weight-percent salt content data for sodium chloride [6, 9].