Respostas

2013-07-18T17:47:08-03:00
M=n/v. NaOH 0,2=n/0,025 N=0,2.0,025 N=0,005 mol M=n/v HCl 0,1=n/0,075 N=0,1.0,0075 mol' 0,0075-0,005 = 0,0025 mol e a solucao sera acida :-)