Can i get help with the whole question 3
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Explanation:
a. To find the number of molecules in a gas sample, given the pressure, volume, and temperature of the sample:
Figure out how many moles of CO2 gas you have. Assume the CO2 is an ideal gas; you know the temperature and pressure (it's at STP) and you know the volume, so you should be able to compute the number of moles using the ideal gas equation of state:
n = PV/RT = (1 atm)(0.475 L)/(0.08206 L atm mol-1 K-1 × 273.15 K) = 0.0211915
b.C3H5N3O9 or C3H5(NO3)3
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