(1)
(2)反应时间70 ~90 s范围内; △m(CO 2)=0.95g-0.84g=0.l1g
△n( CO 2)=0.11 g÷44 g/mol=0.0025 moI
HNO 3的减少量:△n(HNO 3)=0.0025mol÷1/2=0.0050 mol
HNO 3的平均反应速率:
(3)
(1)
(2)反应时间70 ~90 s范围内; △m(CO 2)=0.95g-0.84g=0.l1g
△n( CO 2)=0.11 g÷44 g/mol=0.0025 moI
HNO 3的减少量:△n(HNO 3)=0.0025mol÷1/2=0.0050 mol
HNO 3的平均反应速率:
(3)