Respuesta :

Hey There!

Volume = 1.25 L

Molarity = 0.75 M

Therefore:

n = M * V

n = 0.75 * 1.25

n = 0.9375 moles

hope this helps!

Explanation:

Molarity is defined as the number of moles divided by volume of solution in liter.

Mathematically,      Molarity = [tex]\frac{no. of moles}{Volume in liter}[/tex]

Since, it is given that molarity is 0.75 M and volume is 1.25 liter. Therefore, calculate the number of moles as follows.

                        Molarity = [tex]\frac{no. of moles}{Volume in liter}[/tex]

                Number of moles = [tex]Molarity \times Volume in liter[/tex]

                                               = [tex]0.75 M \times 1.25 l[/tex]

                                               = 0.937 mol

Thus, we can conclude that number of moles of solute are present in 1.25 l of a 0.75m nano3 solution is 0.937 mol.