The number of grams of H2SO4 present in 0.25 mole of H2SO4 is
The atomic weight of H is 1, S is 32 and O is 16. Thus the mass of H2SO4 is (1x2+32+16x4) 98.
Thus 1 mole of H2SO4 weighs 98g. Thus 0.25 mole of H2SO4 weighs 0.25 x 98=24.5g.
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