I am assuming that the problem ask for the pressure in
the system. To be able to calculate this, we first assume that the system acts
like an ideal gas, then we can use the ideal gas equation to find for pressure
P.
P V = n R T
where,
P = Pressure (unknown)
V = 0.17 m^3
n = moles of lng / methane
R = gas constant = 8.314 Pa m^3 / mol K
T = 200 K
We find for the moles of lng. Molar mass of methane = 16
kg / kmol
n = 55 kg / 16 kg / kmol
n = 3.44 kmol CH4 = 3440 mol
Substituting all the values to the ideal gas equation:
P = 3440 mol * (8.314 Pa m^3 / mol K) * 200 K / 0.17 m^3
P = 33,647,247 Pa
<span>P = 33.6 MPa</span>
Given:
pH is 5.27
Concentration of sol'n 0.013m (weak monoprotic)
Determine H+ concentration:
[H+] = 10^-pH
= 10^-5.27
= 5.37x10^-6
Ka = [H+] [A-] / [HA]
= (5.37x10^-6) * (5.37x10^-6) / (0.013 - 5.37x10^-6)
= 2.22x10^-9
306.0g/22.5mL= 13.6 mL/g
D=m/v
The mass is 306.0
The volume is 13.6
Generally , environmental protection act is a law created by the government to either protect the environment from damages created by Human activities or to restore the damages in order to maintain the resources in the environment.
in order to enforce this act, the government of united states created the United States federal government for environmental protection. This agency is responsible in creating regulation that must be followed by all establishments in united states in order to prevent environmental destruction (such as controlling where they could dump their waste, how to managed their trash, etc,)
Answer:
A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space.
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