Question

Calculate the number of moles in 490g of H2SO4.



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Answer 1

Answer:

Atomic mass of one mole of H2SO4 is 98 grams. So 98 grams of H2SO4 contains 1 mole of H2SO4 molecule i.e., 7 moles atoms. 49 grams of H2SO4 contains 1/2 mole of H2SO4 molecule i.e., 3.5 moles atoms. Hope it helps

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Answer 2

Atomic mass of one mole of H2SO4 is 98 grams.

So 98 grams of H2SO4 contains 1 mole of H2SO4 molecule i.e., 7 moles atoms.

So, by applying the basic maths, we get

490 grams of H2SO4 contains 1 mole of H2SO4 molecule i.e., 35 moles atoms.

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