Answer:
[tex]0.39\text{ M}[/tex]Explanation:
Here, we want to get the molarity of the potassium nitrate solution
Mathematically:
[tex]molarity\text{ = }\frac{number\text{ of moles}}{volume}[/tex]We have to convert the volume to liters by dividing by 1000:
[tex]\frac{750}{1000}\text{ = 0.75 L}[/tex]We have the molarity as:
[tex]molarity\text{ = }\frac{0.29}{0.75}\text{ = 0.39 M}[/tex]