Question

Seawater, which covers the majority of the earth, is composed primarily of molecules of H2O and equal numbers of Na+ ions and Cl- ions. Suppose we have a thoroughly mixed solution (containing these species only) at 25°C. How many components and how many phases are in such a system?

Answer 1

Step-by-step explanation:

It is given that the given system contains
`H_(2)O`,
`Na^(+)`, and
`Cl^(+)`.

Therefore, formula for number of components is given as follows.

C = n - E

where, E = no. of independent equation relating the concentration of species

n = number of species involved

Now, put the given values into the above formula as follows.

C = n - E

= 3 - 1

= 2

Since, NaCl when dissolves in water leads to the formation of a homogeneous mixture. Hence, then phase will be equal to 1.

thus, we can conclude that in the given system there are 2 components present in 1 phase.