Question

Calculate the mass of 0.5 mole of sulphuric acid (H2SO4). Using the values (atomic mass of H = 1 u, C = 12 u, O = 16 u, Na = 23u, S = 32 u, Ca = 40u)

Answer 1

Answer:

48 u

Explanation:

1 mole of H2SO4 contains H2, S, O4.

So,

Mass of 1 mole H2SO4 = mass of H2 + S + O4

Mass of 1 mole H2SO4 = 2(1) + 32 + 4(16)

Mass of 1 mole H2SO4 = 98 u

Therefore,

Mass of 0.5 mole H2SO4 = 0.5*98 u

Mass of 0.5 mole H2SO4 is 49 u