Acid neutralized = 4.0 percent
IX. The flask contained black oxide 150 m.g. N/10 nitric acid 14.93
c.c. and was heated for two and one fourth hours in the water-bath.
Acid neutralized = 4.87 c.c. = 32.46 percent.
The reaction between manganese dioxide and potassium permanganate · 第 16 / 29 题