Question

Aluminum sulfate, known as cake alum, has a remarkably wide range of uses, from dyeing leather and cloth to purifying sewage. In aqueous solution, it reacts with base to form a white precipitate. Need help with the calculations, part B).

(a) Write balanced total and net ionic equations for its reaction with aqueous NaOH (Already have part a to this problem)

Total Equation : 1Al2(SO4)3 (aq) + 6NaOH (aq) --> 3Na2SO4 (aq) + 2Al(OH)3 (s)

Net Equation: 1 [Al]3+ (aq) + 3 [OH]- (aq) --> 1Al(OH)3 (s)

(b)What mass of precipitate forms when 118.5 mL of 0.527 M NaOH is added to 517 mL of a solution that contains 23.6 g aluminum sulfate per liter? (Take into account number of significant figures).

Answer 1