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.

23a. The antacid tablet was added to 50.00 cm3 of 0.100 mol dm−3 sulfuric acid, which was in excess. Calculate the amount, in mol, of H2SO4. [1 mark]65fba21d0dced.jpg