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
=>
=>
=>
Answer:
a) 0.13 bar
b) 5.05 L
Explanation:
Let us take the mass of the mixture to be 100 g. Hence, 70% by weight of dioxygen corresponds to 70 g
Mass of dihydrogen = 100g - 70 g = 30g
Number of moles of dioxygen = 70g/32 g/mol = 2.2 moles of dioxygen
Number of moles of dihydrogen = 30g/2g/mol = 15 moles of dihydrogen
Total number of moles = 2.2 + 15 = 17.2 moles
Mole fraction of dioxygen = 2.2/17.2 = 0.13
Partial pressure = mole fraction * total pressure
Partial pressure of dioxygen = 0.13 * 1 = 0.13 bar
ii) number of moles in 8.8 g of CO2 = 8.8g/44g/mol = 0.2 moles
T = 31.1 + 273 = 304.1 K
P = 1 bar
V= ?
R = 0.083 bar L K-1 mol-1
From
PV=nRT
V = nRT/P
V= 0.2 * 0.083 * 304.1/1
V= 5.05 L
Answer:
The amount of energy transferred to the diamond while being cut is thus Q = 852000 J
Explanation:
Since quantity of heat transferred Q = mcΔθ where m = mass of substance , c = specific heat capacity of substance and Δθ = temperature change.
Now, given that for diamond, m = mass of diamond = 600 g, c = specific heat capacity of diamond = 710 J/g°C and Δθ = temperature change = 2 °C.
So, the amount of energy transferred to the diamond while being cut is thus
Q = mcΔθ
Q = 600 g × 710 J/g°C × 2 °C
Q = 852000 J
So, the amount of energy transferred to the diamond while being cut is thus Q = 852000 J
In a reaction with bromine, antimony will oxidize itself to +III oxidation state forming {antimony (III) bromide
Sb(s)+Br2(l)→SbBr3(s)
Balance the equation by balancing Bromine.
2Sb(s)+3Br2(l)→2SbBr3(s)
A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same for both the reactants and the products side. In other words, the mass of the elements and the charge on them are balanced on both sides of the reaction.
A chemical equation needs to be balanced because a chemical reaction is just a rearrangement of atoms of the given elements. The chemical equation needs to be balanced to follow the law of conservation of mass.
Learn more about chemical equations here:
brainly.com/question/12047033
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Dmitri Mendeleev was the creator and therefore organizer of the periodic table.