1. Determine the numbers of joules are required to heat 8.50 grams of ice from -10.0degrees C to 25.0 degrees C?
2. Calculate the pH of a mixture of a acetic acid and sodium acetate when the ratio of (CH3COO)/(CH3COOH) is 4.0 where the Ka of the CH3OOH is 1.8 x 10^-5.