Moles of a Mass of a Substance - # 2

Post Reply
User avatar
Jason
Site Admin
Posts: 630
Joined: Sun Dec 21, 2025 8:56 pm

\(What\,\, is\,\, the\,\, moles\,\, of\,\, 100\, g\,\, of\,\, CO_{2},\,\, where\,\, the\,\, mass\,\, of\,\, one\,\, mole\,\, of\,\, CO_{2}\,\, is\,\, not\,\, given?\)


\(Mass\,\, of\,\, C\,\,per\,\,mol = 12.011\,\,\dfrac{g}{mol}\)

\(Mass\,\, of\,\, O_{2}\,\,per\,\,mol = 32.00\,\,\dfrac{g}{mol} * 2 = 64 \dfrac{g}{mol}\)

\(so\)

\(Mass\,\, of\,\, CO_{2}\,\,per\,\,mol = 12.011 + 32.00 = 44.01\,\, \dfrac{g}{mol}\)

\((mass\,\,of\,\,a\,\,substance) \dfrac{1\,\,mol\,\,of\,\,a\,\,substance}{mass\,\,of\,\,1\,\,mol\,\,of\,\,a\,\,substance} =\)

\(moles\,\,of\,\,a\,\,mass\,\,of\,\,substance\)

\(so\)

\(100\,\,g\,\,CO_{2} = \dfrac{1\,\,mol\,\,CO_{2}}{44.01\,\,g\,\,CO_{2}} = 2.27272727273\,\,mol\,\,CO_{2}\)
 

POSTREACT(ions) SUMMARY

Post Reply