Component Composition, mole fraction Methane Ethane 0.6904 0.0864 0.0534 0.0115 Propane |- Butane n-Butane i- Pentane n-Pentane Hexanes Heptanes plus 0.0233 0.0093 0.0085 0.0173 0.0999 1.0000 Properties of heptanes plus Specific gravity Molecular weight 0.827 158 Ib/b mole B- The gas of Exercise 3-4 is a retrograde gas. However, discovery pressure in reservoir, 7000 psig, is higher than dew point pressure, 6010 psig. Reservoir temperature is 256°F. The reservoir lies under 7040 acres, has an average thickness of 13 ft, has a porosity of 11%, and has a water saturation of 40%. Calculate the mass of gas in the reservoir at initial conditions. Give your answer in Ib moles

Component Composition, mole fraction Methane Ethane 0.6904 0.0864 0.0534 0.0115 Propane |- Butane n-Butane i- Pentane n-Pentane Hexanes Heptanes plus 0.0233 0.0093 0.0085 0.0173 0.0999 1.0000 Properties of heptanes plus Specific gravity Molecular weight 0.827 158 Ib/b mole B- The gas of Exercise 3-4 is a retrograde gas. However, discovery pressure in reservoir, 7000 psig, is higher than dew point pressure, 6010 psig. Reservoir temperature is 256°F. The reservoir lies under 7040 acres, has an average thickness of 13 ft, has a porosity of 11%, and has a water saturation of 40%. Calculate the mass of gas in the reservoir at initial conditions. Give your answer in Ib moles