calculate the number of moles of molecules and neutron in 49 gm of h2so4

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Solution

Given mass of H₂SO₄ = 49 g
Molar mass of H₂SO₄ = 98 g
Number of moles = $\frac{G i v e n m a s s}{M o l a r m a s s}$

Number of moles = $\frac{49}{98}$ = 0.5 moles
In , H₂SO4 , hydrogen has no neutrons, 1 atom of oxygen have 8 neutrons (here 4 oxygen atoms are there,so 8 $\times$ 4=32 neutrons) ,1 atom of sulphur has 16 neutrons, so total number of neutrons = 32 + 16 =48

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