If you had 0.867 miles of salt, NaCI , in a 0.69 L solution, what would be the molarity

Approximately . (Assuming that the question says moles of salt in this solution.)

Explanation:

The molarity of a solution gives the quantity of the solute in every unit volume of the solution. In this question:

Note that in this question, liter is the unit for the volume of the solution. The molarity of the solution should thus give the amount of solute in every liter of the solution:

.

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

it is stable as it is in group 0 which have full outer shells of electrons