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1. (30 pts.) The formula weigh (FW) of a gas can be determined using the following form
of the ideal gas law: FW = gRT/(PV)
where g is the mass in grams, R is the gas constant, T is the temperature in Kelvin, P is
the pressure in atmospheres, and V is the volume in liters. In a typical analysis the
following data are obtained (with estimated uncertainties in parentheses): g = 0.118 g (+
0.002 g); R= 0.082056 L.atm. mol. K" (+ 0.000001 L.atm. mol. K-); T = 298.2 K (+
0.1 K); P = 0.724 atm (+ 0.005 atm); V= 0.250 L (+ 0.005 L)
What are the compound's formula weight and its estimated uncertainty?

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