Density of potassium chloride, KCl(aq)
Table 1. Estimated values of absolute density (g/cm3) of aqueous
potassium chloride solutions {KCl + 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 |
1.00456 |
1.00174 |
0.99683 |
0.99027 |
0.98234 |
0.97321 |
| 0.2 |
1.00931 |
1.00636 |
1.00136 |
0.99476 |
0.98682 |
0.97770 |
| 0.3 |
1.01400 |
1.01091 |
1.00584 |
0.99919 |
0.99123 |
0.98211 |
| 0.4 |
1.01862 |
1.01541 |
1.01026 |
1.00357 |
0.99558 |
0.98646 |
| 0.5 |
1.02318 |
1.01987 |
1.01464 |
1.00790 |
0.99989 |
0.99076 |
| 0.6 |
1.02769 |
1.02427 |
1.01897 |
1.01217 |
1.00415 |
0.99501 |
| 0.7 |
1.03215 |
1.02863 |
1.02326 |
1.01643 |
1.00837 |
0.99921 |
| 0.8 |
1.03657 |
1.03294 |
1.02751 |
1.02063 |
1.01254 |
1.00338 |
| 0.9 |
1.04094 |
1.03722 |
1.03171 |
1.02480 |
1.01668 |
1.00751 |
| 1.0 |
1.04527 |
1.04145 |
1.03588 |
1.02892 |
1.02078 |
1.01161 |
| 1.2 |
1.05380 |
1.04981 |
1.04409 |
1.03706 |
1.02888 |
1.01970 |
| 1.4 |
1.06218 |
1.05797 |
1.05216 |
1.04505 |
1.03684 |
1.02766 |
| 1.6 |
1.07041 |
1.06601 |
1.06008 |
1.05290 |
1.04466 |
1.03549 |
| 1.8 |
1.07849 |
1.07390 |
1.06786 |
1.06062 |
1.05236 |
1.04321 |
| 2.0 |
1.08643 |
1.08166 |
1.07550 |
1.06820 |
1.05994 |
1.05080 |
| 2.5 |
1.10569 |
1.10045 |
1.09402 |
1.08661 |
1.07833 |
1.06929 |
| 3.0 |
1.12416 |
1.11846 |
1.11177 |
1.10424 |
1.09598 |
1.08705 |
| 3.5 |
1.14188 |
1.13572 |
1.12878 |
1.12115 |
1.11289 |
1.10407 |
| 4.0 |
1.15887 |
1.15229 |
1.14510 |
1.13735 |
1.12907 |
1.12032 |
| 4.5 |
1.17518 |
1.16822 |
1.16077 |
1.15287 |
1.14453 |
1.13578 |
| 5.0 |
1.19082 |
1.18354 |
1.17583 |
1.16772 |
1.15924 |
1.15041 |
Questions and answers based on this table
- What is the density of 2.0 mol/kg KCl
solution at 10.0 °C? 1.0864 g/cm3
- What is the molarity of 3.0 mol/kg KCl
at 25.0 °C? 2.7421 mol/L