01:160:162 Lecture Notes - Lecture 4: Ph, Stage Name, Rice Chart
Document Summary
React with acids to form salts: known as neutralization. Earliest definition classifies these terms in terms of their behavior in water. Substance that dissociates in water to produce hydrogen ions (h+: ex. Hcl (aq) h+ (aq) + cl- (aq) Hcl would be the acid in this case, as it produced h+ ions. Substance that dissociates in water to produce hydroxide ions, (oh) When an acid reacts with a base, it undergoes neutralization: h+ (aq) + oh- (aq) h2o (l) In a bronsted-lowry acid-base reaction, the acid molecule gives an h+ to the base molecule o. When a bronsted acid donates a proton, what remains is known as a conjugate base. The 2 species hcl- and cl- are known as a conjugate acid-base pair, or conjugate pair. When a bronsted base accepts a proton, the newly formed species = conjugate acid. Amphetoric substances can act either as an acid or base because they can both donate and accept an h+ ion.
