if density = m(mass) / v(volume) then the answer would be 3
The final molarity of HCl is 2.284 M
We'll begin by listing what was given from the question. This is shown below:
Initial volume (V₁) = 5.56 mL
Initial Molarity (M₁) = 4.108 M
Final volume (V₂) = 5.56 + 4.44 = 10 mL
<h3>Final Molarity (M₂) =? </h3>
The final molarity of the HCl solution can be obtained by using the dilution formula as illustrated below:
<h3>M₁V₁ = M₂V₂</h3>
4.108 × 5.56 = M₂ × 10
22.84048 = M₂ × 10
Divide both side by 10
M₂ = 22.84048 / 10
<h3>M₂ = 2.284 M</h3>
Therefore, final molarity of the HCl solution is 2.284 M.
Learn more: brainly.com/question/6103588
Answer:
Atoms consist of three basic entity which can't be broken further into others namely neutron, proton, and electrons. Proton ad neutrons are kept in nucleus while electrons are in orbital, free to move in an orbital. The larger nuclear charge will make atom more stable and therefore lowers the energy. On the other hand, more electron will make atom unstable, because the energy will increase.
Thereby, option B is right choice.
Answer:
The value is
Explanation:
From the question we are told that
The equilibrium spacing is
The mass of a hydrogen atom is
The principal quantum number of the second energy level is
The principal quantum number of the first energy level is
Given that the hydrogen molecule is a symmetrical diatomic molecule, its moment of inertia is mathematically represented as
Generally for rotational spectrum the energy level is mathematically represented as
Generally the energy difference between the first energy level and the second energy level is mathematically represented as
=>
=>
substituting for I
=>
Generally this difference in energy level can also be mathematically represented as
=>
=>
Here h is Planck's constant with value
and c is the speed of light with value
So
=>
=>
=>
D = g / cm³
Density = mass / volume
D = 360 g / 7.5 cm³
D = 48 g/cm³
answer D
hope this helps!