Verify by calculating that:
$(a)$ $5 \, mol$ of $CO_2$ and $5 \, mol$ of $H_2O$ do not have the same mass.
$(b)$ $240 \, g$ of calcium and $240 \, g$ of magnesium elements have a mole ratio of $3:5$.

  • A
    $60 \, g, 3:2$
  • B
    $70 \, g, 3:6$
  • C
    $80 \, g, 3:7$
  • D
    $90 \, g, 3:5$

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$(a)$ $5.84 \times 10^{-3} \,mg$
$(b)$ $58.34 \,g$
$(c)$ $0.584 \,g$
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