А) Mr (H2SO4) = 2(1) + 32 + 4(16) = 2 + 32 + 64 = 98 г/моль
B) Mr (Al(OH)3) = 27 + 3(16) + 3(1) = 27 + 48 + 3 = 78 г/моль
А) Mr (H2SO4) = 2(1) + 32 + 4(16) = 2 + 32 + 64 = 98 г/моль
B) Mr (Al(OH)3) = 27 + 3(16) + 3(1) = 27 + 48 + 3 = 78 г/моль