Question

calculate the number of oxygen atoms present in 13.4 grams of H2 O2​

Answer 1

Answer:

9.39*10²³

Explanation:

no. of atoms = total no. of atoms*no.of molecules

=4*moles*NA

=4*given weight/molecular weight*NA

=4*13.4/34*6.022*10²³

=4*0.39*6.022*10²³

=9.39*10²³

HOPE IT WILL HELP YOU PLZ LIKE AND MARK AS BRAINLIEST