This preview shows page 1. Sign up to view the full content.
Unformatted text preview: -12 was it basic or acidic? did it become more basic or more acidic? Example: We have a 0.03M solution of nitric acid, HNO 3 . What is the pH? [H + ] = [HNO 3 ] 0 = 0.03M pH = - log (0.3) = 1.5228 If this had been a 0.03M solution of a WEAK acid, not all the acid would have dissociated, so pH would be GREATER than 1.5228 (less acidic). We'll see how to do this next. Example 1: We have a 0.25M solution of sulfuric acid, H 2 SO 4 . What is the pH? Extra bit to note: Sulfuric acid contains TWO protons so, H 2 SO 4 2H + + SO 4 2-This means that [H + ] = 2 x 0.25 = 0.5M pH = - log (5x10-1 ) = 0.301 yes, you can have pH's below 1. . its very acidic! Example:...
View Full Document
This note was uploaded on 06/13/2011 for the course CH 302 taught by Professor Holcombe during the Spring '07 term at University of Texas.
- Spring '07