Answer: 2. they are 4 and 8
Explanation: I took the exam. I hope I helped :)
Answer:
For H-Cl, the direction is towards the chlorine atom
For F-CH3, the direction is towards the flourine atom.
Explanation:
The dipole moment is a vector quantity. This implies that it has both magnitude and direction.
Thus, the direction of the dipole moment always points from the positive atom towards the negative atom.
This explains the fact that it points to chlorine in HCl and points to flourine in F-CH3
Answer:
The answer is 2.54g
To find the mass we must first find the number of moles we use the Formula ;
N = n × L
where
N is the number of entities
n is the number of moles
L is the Avogadro's constant which is
6.023 × 10^23
n = N / L
N = 4.5 x 10^22 molecules
n = 4.5 x 10^22 / 6.023 × 10^23
n = 0.0747 moles
Molar mass = mass / number of moles
Molar mass of H2O2 = (2 × 1) + (16 × 2)
= 2 + 32
= 34g/mol
mass = molar mass × number of moles
= 34 × 0.0747
= 2.5398
= 2.54g
Hope this helps