Answer:
V = 122.2 L
Explanation:
Given data:
Number of molecules of water = 6.58×10²⁴
Volume of oxygen produced = ?
Solution:
Chemical equation:
2H₂O → 2H₂ + O₂
<em>Number of moles of water:</em>
Number of moles = 6.58×10²⁴/ 6.022 ×10²³
Number of moles = 1.09 ×10¹ mol
Number of moles = 10.9 mol
Now we will compare the moles of water with oxygen:
H₂O : O₂
2 : 1
10.9 : 1/2×10.9 = 5.45 mol
Volume of oxygen:
PV = nRT
V = nRT/P
V = 5.45 mol × 0.0821 L. atm. K⁻¹. mol⁻¹× 273 k / 1 atm
V = 122.2 L. atm. / 1 atm
V = 122.2 L
Answer:
Can you repost this but flip it? It’s upside down rn
Explanation:
Most of the mass of an atom is in the Nucleus.
Answer:
C
Explanation:
This experiment by Rutherford involved the firing of alpha particles at gold foils. It is also. called the gold foil experiment.
He fired these alpha particles at different points. He noticed that at some points, there were deflections, while at some other points, there were no deflections. It is necessary to state that these alpha particles are positively charged. For there to be a deflection, there must have been a kind of repulsion between the gold foil and the alpha particles.
From the basic physics of like repels like, he knew for sure that there must be dense positive core in the atom that is causing the deflection of the alpha particles. This enabled him to come up with the theory that the atom contained a small dense positive core called the nucleus
