Asample of oxygen gas (o2) has a temperature of 273 k at 1.00 atm. what should the density of this gas be? show all of the work used to find your answer.

According to Ideal Gas Equation,

                                      P V  =  n R T
Also,
                                          n  =  mass / M.mass
So,
                                      P V  =  (mass × R × T) ÷ M.mass
Or,
                         P × M.mass  =  (mass × R × T) ÷ V
Since,
                       Density = mass / volume
So,
                                           P × M.mass  =  Density × R × T
Or,
                              Density  =  (P × M.mass) ÷ (R × T)
Putting Values,

   Density  =  (1.0 atm × 32 g/mol) ÷ (0.0821 L.atm.mole⁻¹.K⁻¹ × 273 K)

                                           Density  = 1.42 g/L

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .