Question

How many total moles of `KNO_3` must be dissolved in water to make 1.5 liters of a 2.0 M solution?

Answer 1

`"Concentration"` `=` `"Amount of substance (mol)"/"Volume of solution (L)"`

Explanation:

Given `c` `=` `n/V`; `n` `=` `CxxV`

So `n` `=` `2.0*mol*cancel(L^-1)xx1.5*cancelL` `=` `3.0*mol`