下列滲透壓莫耳濃度（osmolality）數值，何者落於正常成人血清的參考範圍內？
140 Osm/Kg \mathrm{H}_{2}O
\mathrm{H}_{2}
140 mOsm/Kg \mathrm{H}_{2}O
280 Osm/Kg \mathrm{H}_{2}O
280 mOsm/Kg \mathrm{H}_{2}O
