The solar wind is made up of ions, mostly protons, flowing out from the Sun at 400 km/s. Near Earth, each cubic kilometer of interplanetary space contains, on average, 6 x 10^15 solar-wind ions. How many moles of ions are in a cubic kilometer of near-Earth space?

9.96x10⁻⁹ moles of ions are in a cubic kilometer

Explanation:

As the problem states, in the near-earth space there are 6x10¹⁵ ions.

Moles are an amount of substance defined as 6.022x10²³. 1 mole of ions are 6.022x10²³ ions

1 mole of substance is 6.022x10²³ particles.

As there are 6x10¹⁵ ions in a cubic kilometer, the moles are:

6x10¹⁵ ions * (1mol / 6.022x10²³ ions) =

here we have to get the change of moles on decrease the volume of the reaction in gas phase.

the   per the given options it will decrease by (d) 11-50%

we know, on decreasing the volume of the gas phase reaction the reaction moves to the product side.

the reaction:                     so₂cl₂ (g) = so₂ (g) + cl₂ (g)         total

the moles at equilibrium:   1 - α                 α               α           = 1+α

concentrations:                   1 - α               α               α           = 1 + α

(concentration = moles/volume, as volume is 1 l)

(where α is the degree of dissociation)

now the dissociation constant in terms of concentration is :

=  

or,

or,   = (at v = 1l)

the reaction:                     so₂cl₂ (g) = so₂ (g) + cl₂ (g)         total

the moles at equilibrium:   1 - α                 α               α           = 1+α

concentrations:               (1 - α)/0.5           α/0.5         α/0.5       = (1 + α)/0.5

thus, the dissociation constant in terms of concentration is :

or,  

=  

so, the change of 1 : 1/0.5

or, 1: 2

thus it will decrease by 50%.

or, as per the given options it will decrease by 11-50%

samuel de champlain. in 1608, king henry iv sponsored pierre dugua, sieur de mons and samuel de champlain as founders of the city of quebec with 28 men. this was the second permanent french settlement in the colony of canada.