Question

35.5 moles of Lithium fluoride is dissolved in 65 L of solution. Calculate the molarity. 

Hint: (M)olarity = moles/liters 

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Answer 1

The molarity is 0.546
`(moles)/(liter)`

Step-by-step explanation:

In a mixture, the chemical present in the greatest amount is called a solvent, while the other components are called solutes.

Molarity is a unit of concentration based on the volume of a solution and is defined as the number of moles of solute per liter of solution. In other words, molarity is the number of moles of solute that are dissolved in a given volume.

The Molarity of a solution is then expressed as:

`Molarity (M)=(number of moles of solute)/(dissolution volume)`

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

In this case:

• number of moles of solute: 35.5 mole
• dissolution volume: 65 L

Replacing:

`Molarity=(35.5 moles)/(65 L)`

Solving:

Molarity=0.546
`(moles)/(liter)`

The molarity is 0.546
`(moles)/(liter)`

Answer 2

The molarity of Lithium fluoride is 0.5462 M

Step-by-step explanation:

Molarity is the number of moles of solutes per litre of solution. Mathematically, molarity = moles / volume in litres

moles = 35.5 moles

Litre = 65 L

Molarity = 35.5 / 65

Molarity = 0.5462 M or 0.5462 mol/ L