(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.
Funeral rites will continue until Thursday The remains of the Danish-born mother of Russia's last tsar are being taken to St Petersburg, 140 years after she first arrived in Russia. Empress Maria Feodorovna will be buried alongside her husband, Tsar Alexander III, as she had wished.orn Princess Dagmar in 1847, she changed her name and converted to the Russian Orthodox faith on marriage. The tsarina had six children, including Russia's last Tsar, Nicholas II, who abdicated in 1917 during the Revolution. 'Our dream' Months later he and his family were executed by Bolsheviks.