Question

use a tabela periódica e determine a massa molar (g/mol) do acido sulférico (H2SO4)

Answer 1

vamos lá:

H = 2 . 2 = 4
S = 2 .32 = 64
O =4 .16 = 64

total = 4 + 64 + 64
total = 132 g/mol

att: Jhonny