First, we need to figure out the molar mass of P2O5.
P x 2: 30.97g x 2 = 61.94g
O x 5: 16.00g x 5 = 80.00g
+ 141.94g
0.450g x 1 mole/141.94g = 0.00317 moles = 3.17 x 10^3 moles
Now we are going to use Avogadro's number (=6.02 x 10^23)
(3.17 x 10^3 moles) x (6.02 x 10^23 atoms) / (1 mole) = 1.91 x 10^27 atoms
Answer:
D
Explanation:
Radioactivity means
the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei
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This is the pattern formed in a fluid when heating causes part of the fluid to rise and then cooling causes it to sink again. Within Earth's mantle they circulate heat and drive plate tectonic processes. Within the atmosphere and oceans, they drive winds and weather patterns:Convection Cell
Answer:
number of moles is inversely proportional to the Temperature
Explanation:
As we know
PV = nRT
where P is the pressure
V is the volume
n is the number of moles
R is the gas constant
and T is the temperature
If we see the equation, we can find that n is inversely proportional to the Temperature
