THE FIVE-COMPONENT SYSTEM: LITHIUM–SODIUM–POTASSIUM–SULPHATE–CHLORIDE–WATER, AT 25 °C

Ionization of Hydrofluoric Acid at 25 °C*

The io niza tion constant, K" fo r the reaction HF:;:2 H + + F was ca lc ul ated on the ba s is of pote ntio· metric measure me nt s in the cell Ag; AgCl , CI , F II La F"II Na F, HCI, 1-1 , 0 1 KCI(Sa td .), I-I g,Cl 2 ; Hg at 25 °C. A leas t squ a res procedure was a ppli ed to the ex pe rime nt a l da ta yie lding a bes t es tim a te fo r K, of 5 .85 X 10 4 with a s tanda rd e rror of 0.03 X...

Quaternary diffusion coef fi cients for the sucrose – NaCl – KCl – water system at 25 ° C ☆

Available online 23 May 2010

THERMODYNAMIC MODELING IN THE Na-NO3-SO4-Cl-OH-H2O CHEMICAL SYSTEM AT 25 °C

The investigation of ionic association in the CdF2 solution with the mixed solvent (water +ethanol +propanol) at 25°C

Using the mixed solvents, (water +ethanol + propanol), the solubility of CdF2 was determined byevaporating method at 25° C. The results showed that the sollbility, s, of CdF2 decreases bydecreasing the dielectric constant of the mixed solvent .Once the solubility of CdF2 was determined,the concentration solubility product, Ksp(c)=4s3, was calculated .Furthermore ,by estimating the meanactivity ...

25-on-25: twenty-five perspectives on twenty-five years of cardiopulmonary imaging. Part III.

The 25th anniversary year of the Journal is an opportune time for both reflecting on the past and envisioning the future of cardiopulmonary imaging. The purpose of this special year-long feature is to provide our readers with the collective perspectives of 25 international leaders in the field regarding the following questions: 1. ‘‘What is the most influential article or advance in our special...