Question

Find the mass of 10 moles of so2 and hno3. Which has more mass? (H=1u,N=14u,O=16u,S=32u)

Answer 1

Hey!

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(i) Number of moles = 10
Mass of SO2= 32+16×2= 64g

Molar mass= Number of moles× atomic mass
Molar mass= 10×64
Molar mass= 640 g

(ii) Number of moles= 10
Mass of HNO3= 1+14+16×3= 63g

Molar mass= Number of moles×atomic mass
Molar mass= 10×63
Molar mass= 630 g

Thus, molar mass of SO2 is greater than HNO3.

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Hope it helps...!!!