阿摩線上測驗
題組內容
23. A student determined the percentage of the active ingredient magnesium hydroxide, Mg(OH)2, in a 1.24 g antacid
tablet.
23b. The excess sulfuric acid required 20.80 cm3
of 0.1133 mol dm−3 NaOH for neutralization. Calculate the amount
of excess acid present. [1 mark]