Density of sodium chloride, NaCl(aq)
Table 1. Estimated values of absolute density (g/cm3) of aqueous
sodium chloride solutions {NaCl + 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 |
1.00399 |
1.00116 |
0.99622 |
0.98964 |
0.98168 |
0.97254 |
| 0.2 |
1.00822 |
1.00520 |
1.00016 |
0.99352 |
0.98554 |
0.97640 |
| 0.3 |
1.01239 |
1.00921 |
1.00406 |
0.99736 |
0.98936 |
0.98022 |
| 0.4 |
1.01651 |
1.01317 |
1.00792 |
1.00117 |
0.99315 |
0.98401 |
| 0.5 |
1.02059 |
1.01709 |
1.01175 |
1.00495 |
0.99690 |
0.98776 |
| 0.6 |
1.02463 |
1.02098 |
1.01555 |
1.00867 |
1.00062 |
0.99148 |
| 0.7 |
1.02864 |
1.02483 |
1.01931 |
1.01240 |
1.00431 |
0.99517 |
| 0.8 |
1.03260 |
1.02866 |
1.02305 |
1.01609 |
1.00797 |
0.99883 |
| 0.9 |
1.03653 |
1.03245 |
1.02676 |
1.01975 |
1.01161 |
1.00247 |
| 1.0 |
1.04043 |
1.03621 |
1.03043 |
1.02338 |
1.01522 |
1.00607 |
| 1.2 |
1.04812 |
1.04366 |
1.03771 |
1.03056 |
1.02235 |
1.01321 |
| 1.4 |
1.05569 |
1.05096 |
1.04488 |
1.03764 |
1.02939 |
1.02024 |
| 1.6 |
1.06313 |
1.05817 |
1.05194 |
1.04462 |
1.03633 |
1.02717 |
| 1.8 |
1.07044 |
1.06527 |
1.05890 |
1.05150 |
1.04317 |
1.03400 |
| 2.0 |
1.07765 |
1.07227 |
1.06577 |
1.05829 |
1.04992 |
1.04075 |
| 2.5 |
1.09517 |
1.08932 |
1.08253 |
1.07486 |
1.06640 |
1.05721 |
| 3.0 |
1.11203 |
1.10579 |
1.09873 |
1.09090 |
1.08235 |
1.07313 |
| 3.5 |
1.12829 |
1.12170 |
1.11440 |
1.10642 |
1.09778 |
1.08854 |
| 4.0 |
1.14398 |
1.13709 |
1.12958 |
1.12145 |
1.11274 |
1.10347 |
| 4.5 |
1.15915 |
1.15199 |
1.14428 |
1.13602 |
1.12724 |
1.11795 |
| 5.0 |
1.17385 |
1.16644 |
1.15854 |
1.15016 |
1.14130 |
1.13200 |
| 5.5 |
1.18811 |
1.18048 |
1.17239 |
1.16388 |
1.15496 |
1.14564 |
| 6.0 |
1.20198 |
1.19412 |
1.18585 |
1.17721 |
1.16822 |
1.15891 |
Questions and answers based on this table
- What is the density of 2.0 mol/kg NaCl
solution at 10.0 °C? 1.0776 g/cm3
- What is the molarity of 3.0 mol/kg NaCl
at 25.0 °C? 2.8225 mol/L