Can can someone lease check my answers and tell me if im you have four fixed-volume containers at stp. container a has 0.5 mol of gas in 11.2 l. container b has 2 mol of gas in 22.4 l. container c has 1 mol of gas in 22.4 l. container d has 2 mol of gas in 11.2 l. which of the four containers have equal pressures? (points : 3) a and c a and b b and c c and d my answer is a

Technically, this question is badly worded. If all 4 containers were at STP, then all 4 containers would have the same pressure. So I'll assume instead that all 4 containers are at the same temperature, and then use the ideal gas law to determine the relative internal pressures of each container.

   The idea gas law is
  PV = nRT
  where
  P = Pressure
 V = Volume
  n = number of moles
 R = Ideal gas constant
 T = Absolute temperature

    Since all the containers are at the same temperature, we can ignore the R and T parts of the formula and substitute some value K for constant. So we get PV = nK

   Now solve for P
 PV = nK
 P = nK/V

   From the above, you can see that the pressure is proportional to the number of moles divided by the volume. So let's calculate that value for each container.
 Container A: 0.5 / 11.2 = 0.044642857
 Container B: 2 / 22.4 = 0.089285714
Container C: 1 / 22.4 = 0.044642857
Container D: 2 / 11.2 = 0.178571429
   So as you can see, the pressures in containers A and C are the same, which is the first available option, so you are correct.

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 .

B.) falsehope this !