Question

How many moles of a solute is present in 4.00L of an 8.30M solution​

Answer 1

Answer:

The number of moles of solute present in 4.00 L of an 8.30 M solution​ is 33.2

Explanation:

The Molarity (M) or Molar Concentration is the number of moles of solute per liter of solution; in other words it is the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution:

$Molarity=\frac{number of moles of solute}{volume}$

Molarity is expressed in units ($\frac{moles}{liter}$)  or M.

In this case:

• molarity= 8.30 M
• number of moles of solute= ?
• volume= 4.00 L

Replacing:

$8.30 M=\frac{number of moles of solute}{4 L}$

Solving:

number of moles of solute= 8.30 M* 4 L= 8.30 $\frac{moles}{liter}$ * 4 L

number of moles of solute =33.2

The number of moles of solute present in 4.00 L of an 8.30 M solution​ is 33.2