(Concept 3.3) A buffer causes acidic solutions to become alkaline, and alkaline solutions to become acidic. A buffer stabilizes the pH of a solution by preventing acids or bases from dissociating. A buffer accepts hydrogen ions when they are in excess and donates hydrogen ions when they have been depleted.
Ivan IV, The Terrible, was crowned Russia's first Tsar at the age of 17. Ivan the Terrible was the fallen angel. He set up a bodyguard that has been described as Russia's first 'secret police' - the Oprichniki - as a religious brotherhood sworn to protecting God's Tsar.
Early life and reign. Nikolay Aleksandrovich was the eldest son and heir apparent (tsesarevich) of the tsarevich Aleksandr Aleksandrovich (emperor as Alexander III from 1881) and his consort Maria Fyodorovna (Dagmar of Denmark). Succeeding his father on November 1, 1894, he was crowned tsar in Moscow on May 26, 1896. Nicholas II: Nicholas II and his family, 1905The Granger Collection, New YorkNeither by upbringing nor by temperament was Nicholas fitted for the complex tasks that awaited him as autocratic ruler of a vast empire.