atomic weight: C = 12 , H = 1, O = 16, Na = 23, log2 = 0.3
申論題內容
4(a) Using the acetic acid(x g), sodium acetate(y g), and water(z mL) to prepare a buffer solution of pH 4.8. The acidity of acetic acid, Ka, is 1.8 x 10-5
(b) Write the equilibrium chemical reaction of methanol with K2Cr2O7 in acidic solution.