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20 February, 08:57

Calculate the volume of dry CO2 produced at body temperature (37 ∘

c. and 0.980 atm when 25.5 g of glucose is consumed in this reaction.

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Answers (2)
  1. 20 February, 10:38
    0
    Using the equation PV = nRT

    Therefore; V = nRT / P

    Need moles of glucose converted to moles of the product gas (CO2).

    Molecular weight calculation:

    C 6 X 12.01 = 72.06

    H 12 X 1.01 = 12.12

    O 6 X 16.00 = 96.00

    sum = 180.18

    25.5 g of C6H12O6 (1 mol C6H12O6 / 180.18 g) (6 mol CO2 / 1 mol C6H12O6) = 0.84915 mol CO2 gas.

    Convert temp: 37 °C + 273.15 = 310.15 K

    V = ((0.84915 mol) * (0.0821 L atm / mol K) (310.15 K)) / 0.980 atm

    V = 22.0635 L

    = 22.06 L CO2
  2. 20 February, 11:45
    0
    The volume of dry gas is 22.11 L

    calculation

    by use of ideal gas equation that is Pv=nRT

    where P (pressure) = 0.980 atm

    V=?

    n = number of moles

    R (gas constant) = 0.08205 L. atm/Mol. K

    T (Temperature) = 37 + 273 = 310 k

    find n (number of moles)

    write the equation for reaction

    C6H12O6 + 6O2 = 6CO2 + 6H2O

    find the moles of C6H12O6 = moles/molar mass = 25.5/180 = 0.142 moles

    by use of mole ratio between C6H12O6 to CO2 which is 1:6 the moles of CO2 = 0.142 x6 = 0.852 moles therefore n = 0.852 moles

    by making V the formula of the of the subject V = nRT/P

    V = (0.852moles x0.08205 L. atm/mol. K x310 k) / 0.980 atm = 22.11 l
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