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Find out the gram molecules in 4.9 g of H2SO4.

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Find out the gram molecules in 4.9 g of H2SO4.

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Molecular mass of H2SO4 

= 2 × 1 + 32 + 16 × 4 

= 2 + 32 + 64 = 98 g 

∵ 98 g H2SO4 = 1 g/mol 

∴ 4.9 g H2SO4 = 1/98 × 4.9 g/mol 

= 0.05 g mol

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