Question

The formula of an acid is HXO2.the mass of 0.0484 moles of the acid is 3.314 gram.what is the atomic weight of X?

Answer 1

Answer:

35.4g.mol

Explanation:

n =    m/M

m =   mass of compound =  3.314g

n = moles= 0.0484

M  =  m/n = 3.314/0.0484 = 68.4

1+X+16*2 =  68.4

X   = 68.4 - 33 = 35.4g/mol