After the change of temperature and pressure-> the number of moles of the gas is still the same.
n1=P1*V1/RT1
n2=P2*V2/RT2
R=0.082 constant... you can cancel it out
n1=n2
10C=10+273.15K=283.15K
120c=120+273.15k=393.15
P1*V1/T1=P2*V1/T2
1*0.021/283.15=15*V2/393.15
V2=1.943*10^-3 L = 1.943ml
Answer: There are 32400 moles of propane burned.
Explanation:
To calculate the mass of propane, we use the equation:
Density of propane = 
Volume of propane = 750 gal
Putting values in above equation, we get:
(1 lb=453.6 g[/tex]
According to avogadro's law, 1 mole of every substance weighs equal to molecular mass and contains avogadro's number 
of particles.
To calculate the moles, we use the equation:
Thus there are 32400 moles of propane burned.
Protons and neutrons are found inside the nucleus, electrons are found on the outer rings of the atom.
Okay so Sulphur is larger than sodium bcz it has more elements than sodium. And its radius is larger than that of sodium too
Explanation:
It will always take 48 minutes. Even if it was one thousand people to paint one thousand walls.
The point here is that it takes 48 minutes for one person to paint one wall. As long as the number of people is the same as the number of walls, it will always take 48 minutes.
