I believe a Community Pharmacy
PV=nRT
P = 85.0 x 10^3 Pa
T = 273 + 20 = 293 K
n = 2.0 moles
R = 8.314 m3. pa / mol .K
V = 2.0 x 293 x 8.314 / 85.0x10^3 = 0.195623529 m^3
Well, this is obviously an opinion question, so share your opinion. If you are happy that the Agricultural Revolution(s) paved way for the earth to sustain billions of people, then that's great. But, if you wish there were fewer people on the planet, then share that. Of course, both sides have their pros and cons. Just share your opinion. Good luck!
Answer:
the gravitational force is proportional to the mass of both interacting objects, bigger objects will attract each other with a greater gravitational force. So the mass of either object increases, the force of gravitational attraction between them also increases.
This is an incomplete question, here is a complete question.
According to the EPA, the maximum contaminant level (MCL) of antimony in drinking water is 0.0060 mg/L.
Convert the MCL of antimony from milligrams per liter to parts per billion (ppb).
Answer : The maximum contaminant level (MCL) of antimony in drinking water in parts per billion is, 6 ppb
Explanation :
ppb : It is defined as the mass of solute present in per 1000 million 
of total mass.
1 ppb = 
As we know that:
1 milligrams per liter = 1000 parts per billion
or,
1 mg/L = 1000 ppb
As, 1 mg/L = 1000 ppb
So, 0.0060 mg/L = 
= 6 ppb
Thus, the maximum contaminant level (MCL) of antimony in drinking water in parts per billion is, 6 ppb
