Respuesta :
The statement of mass (grams) of methanol is "0.008 g."
What is mass?
A substance is something to do with mass that takes up space. The mass of a compound is the total amount of atoms present in grams that make up a molecule. The grams is the unit of mass.
The balanced equation comes out to be,
CO(g) + 2H2(g) → CH3OH(l)
In order to calculate the mass of methanol, initially the moles of the substance to be calculated from the given mass of CO and H2.
Gram to mole conversion,
[tex]=Grams\;*\;\frac{1\;mol}{grams}[/tex]
Moles of CO,
[tex]7.0\;g\;*\;\frac{1\;mol}{28.01\;g}\;=\;0.249\;mol\;CO[/tex]
Moles of H2
[tex]2.5\;g\;*\;\frac{1\;mol}{2.016\;g}\;=\;1.240\;mol\;O2[/tex]
Carbon monoxide is the limiting reagent which used up completely in the reaction.
Mass of methanol comes out to be,
[tex]0.249\;mol\;CO\;*\;\frac{1\;mol\;CH3OH}{\;mol\;CO}\;*\;\frac{1\;mol\;CH3OH}{32.04\;g\;CH3OH}\;=\;0.0077\;mol\;CH3OH[/tex]
≈ 0.008 mol CH3OH
Hence the correct answer is 0.008 mol.
Learn more about mass (grams) here
brainly.com/question/3625516
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