MgCl₂)= Mg²⁺ + 2Cl⁻
V(MgCl₂)=285cm³=0,285dm³
c(MgCl₂)=0,015 mol/dm³
n(MgCl₂)=c·V= 0,015 mol/dm³ · 0,285dm³ = 0,0042 mol
n(Mg²⁺)=n(MgCl₂)=0,0042 mol
n(Cl⁻)=2n(MgCl₂)=0,0084 mol
Density is calculated as Mass divided by Volume.
Volume can also be expressed as Mass divided by Density.
Volume becomes 2 divided by 128.
This results in Volume equal to 1/64.
Therefore, each side measures 4 cm.
Explanation:
Nuclear forces arise from the close proximity of particles within the nucleus; the tritium atom comprises one proton, two neutrons, and one electron. How many isotopes of hydrogen are documented? Three. The hydrogen isotope with the least mass is designated as protium.
Using Charles's law
v1/t1=v2/t2
v1=49ml
v2=74
t1=7+273=280k
t2=?
49/280=74/t2
0.175=74/t2 cross multiply
0.175t2=74
t2=74/0.175
t2=422k or 149 Celsius
To determine the activation energy, it should equal the activation energy of the forward reaction minus the energy change in the reaction represented by delta E. However, since we are considering the reverse reaction, the sign of delta E must be reversed.
The calculation for this will be: 400 kJ/mol + 250 kJ/mol = 650 kJ/mol, which represents the activation energy for the reverse reaction.
