when measuring the rate at which the mass of copper metal decreases during a reaction with nitric acid,why can't you jus
问题描述：
when measuring the rate at which the mass of copper metal decreases during a reaction with nitric acid,why can't you just put the reaction vessel on a digital balance and record the decrease in mass as the copper is used up?
答
没说是浓硝酸还是稀硝酸,也没说过不过量……