Density of potassium nitrate, KNO3(aq)
Table 1. Estimated values of absolute density (g/cm3) of aqueous
potassium nitrate solutions {KNO3 + 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 |
1.00610 |
1.00323 |
0.99822 |
0.99155 |
0.98353 |
0.97434 |
| 0.2 |
1.01239 |
1.00932 |
1.00413 |
0.99733 |
0.98923 |
0.98000 |
| 0.3 |
1.01860 |
1.01532 |
1.00997 |
1.00306 |
0.99488 |
0.98561 |
| 0.4 |
1.02473 |
1.02124 |
1.01574 |
1.00872 |
1.00047 |
0.99116 |
| 0.5 |
1.03078 |
1.02709 |
1.02144 |
1.01433 |
1.00600 |
0.99665 |
| 0.6 |
1.03675 |
1.03286 |
1.02708 |
1.01985 |
1.01148 |
1.00207 |
| 0.7 |
1.04266 |
1.03857 |
1.03266 |
1.02536 |
1.01690 |
1.00744 |
| 0.8 |
1.04849 |
1.04421 |
1.03818 |
1.03078 |
1.02226 |
1.01275 |
| 0.9 |
1.05425 |
1.04979 |
1.04363 |
1.03615 |
1.02756 |
1.01799 |
| 1.0 |
1.05995 |
1.05530 |
1.04903 |
1.04146 |
1.03280 |
1.02318 |
| 1.2 |
1.07115 |
1.06616 |
1.05964 |
1.05192 |
1.04312 |
1.03339 |
| 1.4 |
1.08210 |
1.07675 |
1.07004 |
1.06215 |
1.05323 |
1.04337 |
| 1.6 |
1.09281 |
1.08714 |
1.08021 |
1.07216 |
1.06311 |
1.05314 |
| 1.8 |
1.10329 |
1.09731 |
1.09017 |
1.08197 |
1.07280 |
1.06271 |
| 2.0 |
1.11356 |
1.10728 |
1.09994 |
1.09158 |
1.08228 |
1.07210 |
| 2.5 |
1.13831 |
1.13135 |
1.12351 |
1.11478 |
1.10521 |
1.09485 |
| 3.0 |
1.16191 |
1.15432 |
1.14597 |
1.13689 |
1.12714 |
1.11674 |
| 3.5 |
1.18448 |
1.17630 |
1.16743 |
1.15804 |
1.14821 |
1.13801 |
Questions and answers based on this table
- What is the density of 2.0 mol/kg KNO3
solution at 10.0 °C? 1.1136 g/cm3
- What is the molarity of 3.0 mol/kg KNO3
at 25.0 °C? 2.6571 mol/L