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+1 vote
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in Chemistry by (30.0k points)

Verify by calculating that 5 mole of CO2 and 5 mole of H2S do not have the same mass. (Atomic mass of C = 12 u, O = 16 u, H = 1 u, S = 32 u) 

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by (130k points)
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Best answer

Molecular mass of CO

= 1(C) + 2(O) 

= 1(12) + 2(16) 

= (1 × 12) + ( 2 × 16) 

= 44 u 

5 mole of CO2 = 5 × 44 

= 220 gm 

Molecular mass of H2

= 2(H) + 1(S) 

= (2 × 1) + (1 × 32) 

= 34 u 

Hence, both (CO2 and H2S) do not have same mass.

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