Answer:
91.1835 nm
Explanation:
Given that the ionization energy of the oxygen molecule = 1314 kJ/mol
It means that
1 mole of oxygen molecules can be ionized by the energy = 1314 kJ = 1314000 J
1 mole of molecules contains 6.022 × 10²³ atoms
So,
6.022 × 10²³ atoms of oxygen molecules can be ionized by the energy = 1314000 J
1 atom require 
of energy
Energy = 
Also
Where,
h is Plank's constant having value 
c is the speed of light having value 
is the wavelength
So,
Also,
So, wavelength = 91.1835 nm
Answer:
The mass of an object is 0.6122 Kg
Explanation:
Given:
Acceleration = 9.8 m/s
Force = 58.8 N
To Find:
Mass of an object = ?
Solution:
We know that according to newtons 2nd law
Force is the product of the mass and acceleration
F= ma
where
F = Force
m = mass
a = Acceleration
Substituting the values,
58.8 = m X 9.8
m = 0.6122 kg
Answer:
Option B
Covalent Bonding
Explanation:
Covalent bonds in C2H5OH are formed between the carbon and hydrogen atoms, where there are shared electron pairs.
This is a weak form of attraction that holds the C2H5OH molecule together, and can easily be broken by a polar solvent such as water.
In order for water to be able to dissolve the C2H5OH molecule, it must break the covalent bonding present in the molecule
Answer:
B. or .0236
Explanation:
Multiply the 3 sides to get 558.095, then divide the mass and volume to get .0236
<h3>Answer:</h3>
Molarity = 0.1516 mol.L⁻¹
<h3>Solution:</h3>
<em>Molarity </em>is the amount of solute dissolved per unit volume of solution. It is expressed as,
Molarity = Moles / Volume of Solution ----- (1)
Data Given;
Mass = 8.45 g
Volume = 0.750 L
Step 1: Calculate Moles for given mass as,
Moles = Mass / M.mass
Moles = 8.45 g / 74.55 g.mol⁻¹
Moles = 0.1133 mol
Step 2: Calculating Molarity:
Now, putting value of Moles and Volume in eq. 1,
Molarity = 0.1133 mol ÷ 0.750 L
Molarity = 0.1516 mol.L⁻¹
