. . . . "the negative logarithm of the hydrogen ion activity that represents the acidity or alkalinity of an aqueous solution." . . . "pH of aqueous solution" . . . . "Christos Vasileiou" . "2026-01-08T15:15:20.911Z"^^ . . . . . . . . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz1OobdRASd9SftHrLhG905OXjv8DHndvyWzXRJ5EDFPankMSnHZPHK+g2qEeRWdonstt55CLrpTpWsVv9xRtTqPidXHbnWLBXX42iCB+EnZNoKqAVKF5GxkSR38S0uTTq3aeQJbw2kTpx6LMkspmuH95fgAI/lfqPWrxdlI98jIeHQ14UXZpiWmkkvPgC9GVgmwHiG1hB/NCA2fKCOxVodN44OfhAPtkWmPJ40IcGPSalI4HRqgLLI5PabdRk3PiG81cUngmQU1Xk6EapzkRJGenkOlGsC5L4ktEPO6LS9uBMLTMLQDtGtkrcwqg5HmeKv7Ili3vgr3LL8/GaBBOLQIDAQAB" . "NsjYFUPiUnC+w4gr+cGYv/upWmtxGdJKIDlX33ycVkWWWpJcLHwi/EUWV7mOuEx0WynBEPcec+lcnFRrzPLE4FNvmU7O0D4CJPJyAVTczef1O3Ku4gXNpJuegTpeVG+TTi+c5W6E5taZBcAB+1F1cYMSgBEb1xjGWz0VDpxp0tRxFrEwbboTmg9I+WnVHy/PxeWkO4L1ufeVlLk08qNQ+s5nkeLQTg4HQC27AlUlQsUfdtS+GUJdBj49T+tUk04mgwp1Eh7i3mk/WCPSjqPSxo2JmbXacE7fVWRyupTnWeG4J0G3kaqspJWAB4XV44iWbvqTH2mWcoEruDkLMOKJsg==" . . .