Density of sodium hydroxide, NaOH(aq)
Table 1. Estimated values of absolute density (g/cm3) of aqueous
sodium hydroxide solutions {NaOH + H2O) as function of electrolyte
molality m and temperature T (at pressure p = 1 bar). Values in the table are consistent with the
density of pure water calculated with the IAPWS-95 equation of state.
|
ρ /g·cm−3 |
|---|
| m /mol·kg(H2O)−1 |
T = 10.0 °C |
T = 25.0 °C |
T = 40.0 °C |
T = 55.0 °C |
T = 70.0 °C |
T = 85.0 °C |
|---|
| 0.1 |
1.00437 |
1.00149 |
0.99654 |
0.98996 |
0.98200 |
0.97282 |
| 0.2 |
1.00893 |
1.00584 |
1.00078 |
0.99414 |
0.98615 |
0.97696 |
| 0.3 |
1.01342 |
1.01014 |
1.00498 |
0.99827 |
0.99025 |
0.98106 |
| 0.4 |
1.01784 |
1.01440 |
1.00912 |
1.00235 |
0.99430 |
0.98511 |
| 0.5 |
1.02222 |
1.01860 |
1.01322 |
1.00639 |
0.99832 |
0.98913 |
| 0.6 |
1.02654 |
1.02277 |
1.01729 |
1.01038 |
1.00230 |
0.99312 |
| 0.7 |
1.03082 |
1.02691 |
1.02132 |
1.01437 |
1.00624 |
0.99708 |
| 0.8 |
1.03505 |
1.03101 |
1.02532 |
1.01831 |
1.01016 |
1.00100 |
| 0.9 |
1.03925 |
1.03507 |
1.02929 |
1.02222 |
1.01405 |
1.00490 |
| 1.0 |
1.04340 |
1.03911 |
1.03323 |
1.02610 |
1.01790 |
1.00878 |
| 1.2 |
1.05161 |
1.04711 |
1.04103 |
1.03377 |
1.02553 |
1.01644 |
| 1.4 |
1.05968 |
1.05495 |
1.04871 |
1.04134 |
1.03306 |
1.02400 |
| 1.6 |
1.06762 |
1.06270 |
1.05629 |
1.04880 |
1.04048 |
1.03146 |
| 1.8 |
1.07544 |
1.07034 |
1.06376 |
1.05617 |
1.04780 |
1.03882 |
| 2.0 |
1.08315 |
1.07787 |
1.07114 |
1.06343 |
1.05503 |
1.04609 |
| 2.5 |
1.10191 |
1.09626 |
1.08915 |
1.08120 |
1.07270 |
1.06383 |
| 3.0 |
1.12001 |
1.11402 |
1.10659 |
1.09840 |
1.08980 |
1.08098 |
| 3.5 |
1.13748 |
1.13118 |
1.12347 |
1.11508 |
1.10637 |
1.09756 |
| 4.0 |
1.15437 |
1.14776 |
1.13980 |
1.13124 |
1.12243 |
1.11357 |
| 4.5 |
1.17070 |
1.16378 |
1.15562 |
1.14691 |
1.13799 |
1.12904 |
| 5.0 |
1.18652 |
1.17925 |
1.17093 |
1.16212 |
1.15308 |
1.14397 |
| 5.5 |
1.20186 |
1.19421 |
1.18576 |
1.17687 |
1.16771 |
1.15837 |
| 6.0 |
1.21677 |
1.20866 |
1.20013 |
1.19121 |
1.18192 |
1.17227 |
Questions and answers based on this table
- What is the density of 2.0 mol/kg NaOH
solution at 10.0 °C? 1.0831 g/cm3
- What is the molarity of 3.0 mol/kg NaOH
at 25.0 °C? 2.9840 mol/L