Answer:
1 molecule of oxygen has 2 atoms.
So 2,25 molecules of oxygen have 2 x 2,25 atoms.
2 x 2,25 = 4,5 atoms
There are 4,5 atoms in 2,25 molecules oxygen.
By increasing the amount of energy produced by friction of the cloth can generate a electrical charge.
To answer the question above, substitute the given values to the given equation,
Q(t) = Q x e^-kt
12 grams = (36 grams) x e^(-0.00011)(t)
Solving for t gives t = 9,987.38 years or approximately equal to 9,990 years. Thus, the answer is letter C.
Answer:
Ideal Gas Law ( PV = nRT)
Explanation:
Using the Ideal Gas Law, we have; PV = nRT
Where P= Pressure = ?
V= Volume = 8.0 L
n = moles = 8.0
R = Gas constant = 0.0821 L.atm/mol/K
T = 80° c + 273 = 353.15K
Therefore Pressure would be; P = nRT/ V = 8 x 0.0821 x 353.15 / 8 = 28.9atm
