Question

a chemist dissolves 0.564 moles of manganese (IV) oxide (MnO2) in water, and adds enough water to make 0.510 L of solution. Calculate the molarity of the solution.

Answer 1

The molarity of the solution is 1.1
`(moles)/(liter)`

Step-by-step explanation:

Molarity is a measure of the concentration of that substance that is defined as the number of moles of solute divided by the volume of the solution.

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

`molarity=(number of moles of solute)/(volume)`

Molarity is expressed in units
`(moles)/(liter)`

In this case

• number of moles of solute= 0.564 moles
• volume= 0.510 L

Replacing:

`molarity=(0.564 moles)/(0.510 L)`

Solving:

molarity= 1.1
`(moles)/(liter)`

The molarity of the solution is 1.1
`(moles)/(liter)`