A buffering agent can be either a weak acid or weak base. Buffering agents are usually added to water to form a buffer solution, which only slightly changes its pH in response to other acids and bases being combined with it, particularly a strong acid or a strong base.
D. B. Cooper is a media epithet popularly used to refer to an unidentified man who hijacked a Boeing 727 aircraft in the airspace between Portland, Oregon, and Seattle, Washington, on November 24, 1971. He extorted $200,000 in ransom and parachuted to an uncertain fate. Despite an extensive manhunt and protracted FBI investigation, the perpetrator has never been located or identified. The case remains the only unsolved air piracy in commercial aviation history. While available evidence and a pre
Synopsis. James Fenimore Cooper was born on September 15, 1789 in Burlington, New Jersey. He began his writing career after a wager with his wife and published his first book, Precaution, anonymously in 1820. His later series The Leatherstocking Tales (which includes The Last of the Mohicans) introduced the character Natty Bumppo. The books were hugely popular and have become American classics. Cooper died in 1851.