## Chemistry: The Molecular Science (5th Edition)

$H_2SO_4$ is a strong oxoacid.
To predict if an oxoacid is strong or weak, normally, we just need to calculate the difference between the number of oxygens, and the number of hydrogens: $H_2SO_4$: 2 "H" and 4 "O" - If that difference is $\geq 2$, this is probably a strong acid, otherwise, it is weak. 4 - 2 = 2 2 $\geq 2$ True Therefore, $H_2SO_4$ is a strong oxoacid.